API Reference

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Workers

ModelsExpand Collapse

class MigrationStep: …

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

class SingleStepMigration: …

A single set of migrations to apply.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

class WorkerMetadata: …

JSON-encoded metadata about the uploaded parts and Worker configuration.

body_part: Optional[str]

Name of the part in the multipart request that contains the script (e.g. the file adding a listener to the fetch event). Indicates a service worker syntax Worker.

main_module: Optional[str]

Name of the part in the multipart request that contains the main module (e.g. the file exporting a fetch handler). Indicates a module syntax Worker.

WorkersBeta

WorkersBetaWorkers

List Workers

workers.beta.workers.list(WorkerListParams**kwargs) -> SyncV4PagePaginationArray[Worker]

GET/accounts/{account_id}/workers/workers

Get Worker

workers.beta.workers.get(strworker_id, WorkerGetParams**kwargs) -> Worker

GET/accounts/{account_id}/workers/workers/{worker_id}

Create Worker

workers.beta.workers.create(WorkerCreateParams**kwargs) -> Worker

POST/accounts/{account_id}/workers/workers

Update Worker

workers.beta.workers.update(strworker_id, WorkerUpdateParams**kwargs) -> Worker

PUT/accounts/{account_id}/workers/workers/{worker_id}

Edit Worker

workers.beta.workers.edit(strworker_id, WorkerEditParams**kwargs) -> Worker

PATCH/accounts/{account_id}/workers/workers/{worker_id}

Delete Worker

workers.beta.workers.delete(strworker_id, WorkerDeleteParams**kwargs) -> WorkerDeleteResponse

DELETE/accounts/{account_id}/workers/workers/{worker_id}

ModelsExpand Collapse

class Worker: …

id: str

Immutable ID of the Worker.

created_on: datetime

When the Worker was created.

formatdate-time

logpush: bool

Whether logpush is enabled for the Worker.

name: str

Name of the Worker.

observability: Observability

Observability settings for the Worker.

enabled: Optional[bool]

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for observability. From 0 to 1 (1 = 100%, 0.1 = 10%).

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

enabled: Optional[bool]

Whether logs are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%).

invocation_logs: Optional[bool]

Whether invocation logs are enabled for the Worker.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%).

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

references: References

Other resources that reference the Worker and depend on it existing.

dispatch_namespace_outbounds: List[ReferencesDispatchNamespaceOutbound]

Other Workers that reference the Worker as an outbound for a dispatch namespace.

namespace_id: str

ID of the dispatch namespace.

namespace_name: str

Name of the dispatch namespace.

worker_id: str

ID of the Worker using the dispatch namespace.

worker_name: str

Name of the Worker using the dispatch namespace.

domains: List[ReferencesDomain]

Custom domains connected to the Worker.

id: str

ID of the custom domain.

certificate_id: str

ID of the TLS certificate issued for the custom domain.

hostname: str

Full hostname of the custom domain, including the zone name.

zone_id: str

ID of the zone.

zone_name: str

Name of the zone.

durable_objects: List[ReferencesDurableObject]

Other Workers that reference Durable Object classes implemented by the Worker.

namespace_id: str

ID of the Durable Object namespace being used.

namespace_name: str

Name of the Durable Object namespace being used.

worker_id: str

ID of the Worker using the Durable Object implementation.

worker_name: str

Name of the Worker using the Durable Object implementation.

queues: List[ReferencesQueue]

Queues that send messages to the Worker.

queue_consumer_id: str

ID of the queue consumer configuration.

queue_id: str

ID of the queue.

queue_name: str

Name of the queue.

workers: List[ReferencesWorker]

Other Workers that reference the Worker using service bindings.

id: str

ID of the referencing Worker.

name: str

Name of the referencing Worker.

subdomain: Subdomain

Subdomain settings for the Worker.

enabled: Optional[bool]

Whether the *.workers.dev subdomain is enabled for the Worker.

previews_enabled: Optional[bool]

Whether preview URLs are enabled for the Worker.

tags: List[str]

Tags associated with the Worker.

tail_consumers: List[TailConsumer]

Other Workers that should consume logs from the Worker.

name: str

Name of the consumer Worker.

updated_on: datetime

When the Worker was most recently updated.

formatdate-time

deployed_on: Optional[datetime]

When the Worker’s most recent deployment was created. null if the Worker has never been deployed.

formatdate-time

class WorkerDeleteResponse: …

errors: List[Error]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[ErrorSource]

pointer: Optional[str]

messages: List[Message]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[MessageSource]

pointer: Optional[str]

success: Literal[true]

Whether the API call was successful.

WorkersBetaWorkersVersions

List Versions

workers.beta.workers.versions.list(strworker_id, VersionListParams**kwargs) -> SyncV4PagePaginationArray[Version]

GET/accounts/{account_id}/workers/workers/{worker_id}/versions

Get Version

workers.beta.workers.versions.get(strversion_id, VersionGetParams**kwargs) -> Version

GET/accounts/{account_id}/workers/workers/{worker_id}/versions/{version_id}

Create Version

workers.beta.workers.versions.create(strworker_id, VersionCreateParams**kwargs) -> Version

POST/accounts/{account_id}/workers/workers/{worker_id}/versions

Delete Version

workers.beta.workers.versions.delete(strversion_id, VersionDeleteParams**kwargs) -> VersionDeleteResponse

DELETE/accounts/{account_id}/workers/workers/{worker_id}/versions/{version_id}

ModelsExpand Collapse

class Version: …

id: str

Version identifier.

formatuuid

created_on: datetime

When the version was created.

formatdate-time

number: int

The integer version number, starting from one.

urls: List[str]

All routable URLs that always point to this version. Does not include alias URLs, since aliases can be updated to point to a different version.

annotations: Optional[Annotations]

Metadata about the version.

workers_message: Optional[str]

Human-readable message about the version. Truncated to 1000 bytes if longer.

maxLength1000

workers_tag: Optional[str]

User-provided identifier for the version. Maximum 100 bytes.

maxLength100

workers_triggered_by: Optional[str]

Operation that triggered the creation of the version.

assets: Optional[Assets]

Configuration for assets within a Worker.

_headers and _redirects files should be included as modules named _headers and _redirects with content type text/plain.

config: Optional[AssetsConfig]

Configuration for assets within a Worker.

html_handling: Optional[Literal["auto-trailing-slash", "force-trailing-slash", "drop-trailing-slash", "none"]]

Determines the redirects and rewrites of requests for HTML content.

One of the following:

"auto-trailing-slash"

"force-trailing-slash"

"drop-trailing-slash"

"none"

not_found_handling: Optional[Literal["none", "404-page", "single-page-application"]]

Determines the response when a request does not match a static asset, and there is no Worker script.

One of the following:

"none"

"404-page"

"single-page-application"

run_worker_first: Optional[Union[List[str], bool, null]]

Contains a list path rules to control routing to either the Worker or assets. Glob (*) and negative (!) rules are supported. Rules must start with either ’/’ or ’!/’. At least one non-negative rule must be provided, and negative rules have higher precedence than non-negative rules.

One of the following:

List[str]

Contains a list path rules to control routing to either the Worker or assets. Glob (*) and negative (!) rules are supported. Rules must start with either ’/’ or ’!/’. At least one non-negative rule must be provided, and negative rules have higher precedence than non-negative rules.

bool

Enables routing to always invoke the Worker script ahead of all requests. When true, this is equivalent to ["/*"] in the string array version of this field.

jwt: Optional[str]

Token provided upon successful upload of all files from a registered manifest.

bindings: Optional[List[Binding]]

List of bindings attached to a Worker. You can find more about bindings on our docs: https://developers.cloudflare.com/workers/configuration/multipart-upload-metadata/#bindings.

One of the following:

class BindingWorkersBindingKindAI: …

name: str

A JavaScript variable name for the binding.

type: Literal["ai"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAISearch: …

instance_name: str

The user-chosen instance name. Must exist at deploy time. The worker can search, chat, update, and manage items/jobs on this instance.

name: str

A JavaScript variable name for the binding.

type: Literal["ai_search"]

The kind of resource that the binding provides.

namespace: Optional[str]

The namespace the instance belongs to. Defaults to “default” if omitted. Customers who don’t use namespaces can simply omit this field.

class BindingWorkersBindingKindAISearchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The user-chosen namespace name. Must exist before deploy — Wrangler handles auto-creation on deploy failure (R2 bucket pattern). The “default” namespace is auto-created by config-api for new accounts. Grants full access (CRUD + search + chat) to all instances within the namespace.

type: Literal["ai_search_namespace"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMessaging: …

name: str

A JavaScript variable name for the binding.

namespace: str

The Messaging namespace to bind to.

type: Literal["messaging"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAnalyticsEngine: …

dataset: str

The name of the dataset to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["analytics_engine"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAssets: …

name: str

A JavaScript variable name for the binding.

type: Literal["assets"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindBrowser: …

name: str

A JavaScript variable name for the binding.

type: Literal["browser"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindD1: …

database_id: str

Identifier of the D1 database to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["d1"]

The kind of resource that the binding provides.

Deprecatedid: Optional[str]

This property has been renamed to database_id.

Identifier of the D1 database to bind to.

class BindingWorkersBindingKindDataBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the data content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["data_blob"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindDispatchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The name of the dispatch namespace.

type: Literal["dispatch_namespace"]

The kind of resource that the binding provides.

outbound: Optional[BindingWorkersBindingKindDispatchNamespaceOutbound]

Outbound worker.

params: Optional[List[BindingWorkersBindingKindDispatchNamespaceOutboundParam]]

Pass information from the Dispatch Worker to the Outbound Worker through the parameters.

name: str

Name of the parameter.

worker: Optional[BindingWorkersBindingKindDispatchNamespaceOutboundWorker]

Outbound worker.

entrypoint: Optional[str]

Entrypoint to invoke on the outbound worker.

environment: Optional[str]

Environment of the outbound worker.

service: Optional[str]

Name of the outbound worker.

class BindingWorkersBindingKindDurableObjectNamespace: …

name: str

A JavaScript variable name for the binding.

type: Literal["durable_object_namespace"]

The kind of resource that the binding provides.

class_name: Optional[str]

The exported class name of the Durable Object.

dispatch_namespace: Optional[str]

The dispatch namespace the Durable Object script belongs to.

environment: Optional[str]

The environment of the script_name to bind to.

namespace_id: Optional[str]

Namespace identifier tag.

maxLength32

script_name: Optional[str]

The script where the Durable Object is defined, if it is external to this Worker.

class BindingWorkersBindingKindHyperdrive: …

id: str

Identifier of the Hyperdrive connection to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["hyperdrive"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindInherit: …

name: str

The name of the inherited binding.

type: Literal["inherit"]

The kind of resource that the binding provides.

old_name: Optional[str]

The old name of the inherited binding. If set, the binding will be renamed from old_name to name in the new version. If not set, the binding will keep the same name between versions.

version_id: Optional[str]

Identifier for the version to inherit the binding from, which can be the version ID or the literal “latest” to inherit from the latest version. Defaults to inheriting the binding from the latest version.

class BindingWorkersBindingKindImages: …

name: str

A JavaScript variable name for the binding.

type: Literal["images"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindJson: …

json: object

JSON data to use.

name: str

A JavaScript variable name for the binding.

type: Literal["json"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindKVNamespace: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Namespace identifier tag.

maxLength32

type: Literal["kv_namespace"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMedia: …

name: str

A JavaScript variable name for the binding.

type: Literal["media"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMTLSCertificate: …

certificate_id: str

Identifier of the certificate to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["mtls_certificate"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindPlainText: …

name: str

A JavaScript variable name for the binding.

text: str

The text value to use.

type: Literal["plain_text"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindPipelines: …

name: str

A JavaScript variable name for the binding.

pipeline: str

Name of the Pipeline to bind to.

type: Literal["pipelines"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindQueue: …

name: str

A JavaScript variable name for the binding.

queue_name: str

Name of the Queue to bind to.

type: Literal["queue"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindRatelimit: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Identifier of the rate limit namespace to bind to.

simple: BindingWorkersBindingKindRatelimitSimple

The rate limit configuration.

limit: float

The limit (requests per period).

period: int

The period in seconds.

mitigation_timeout: Optional[int]

Duration in seconds to apply the mitigation action after the rate limit is exceeded. Valid values are 0 (disabled), 10, or multiples of 60 up to 86400. Must be greater than or equal to the period when non-zero.

type: Literal["ratelimit"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindR2Bucket: …

bucket_name: str

R2 bucket to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["r2_bucket"]

The kind of resource that the binding provides.

jurisdiction: Optional[Literal["eu", "fedramp", "fedramp-high"]]

The jurisdiction of the R2 bucket.

One of the following:

"eu"

"fedramp"

"fedramp-high"

class BindingWorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSendEmail: …

name: str

A JavaScript variable name for the binding.

type: Literal["send_email"]

The kind of resource that the binding provides.

allowed_destination_addresses: Optional[List[str]]

List of allowed destination addresses.

allowed_sender_addresses: Optional[List[str]]

List of allowed sender addresses.

destination_address: Optional[str]

Destination address for the email.

formatemail

class BindingWorkersBindingKindService: …

name: str

A JavaScript variable name for the binding.

service: str

Name of Worker to bind to.

type: Literal["service"]

The kind of resource that the binding provides.

entrypoint: Optional[str]

Entrypoint to invoke on the target Worker.

environment: Optional[str]

Optional environment if the Worker utilizes one.

class BindingWorkersBindingKindTextBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the text content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["text_blob"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVectorize: …

index_name: str

Name of the Vectorize index to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["vectorize"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVersionMetadata: …

name: str

A JavaScript variable name for the binding.

type: Literal["version_metadata"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSecretsStoreSecret: …

name: str

A JavaScript variable name for the binding.

secret_name: str

Name of the secret in the store.

store_id: str

ID of the store containing the secret.

type: Literal["secrets_store_secret"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindFlagship: …

app_id: str

ID of the Flagship app to bind to for feature flag evaluation.

maxLength128

name: str

A JavaScript variable name for the binding.

type: Literal["flagship"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

class BindingWorkersBindingKindWorkflow: …

name: str

A JavaScript variable name for the binding.

type: Literal["workflow"]

The kind of resource that the binding provides.

workflow_name: str

Name of the Workflow to bind to.

class_name: Optional[str]

Class name of the Workflow. Should only be provided if the Workflow belongs to this script.

script_name: Optional[str]

Script name that contains the Workflow. If not provided, defaults to this script name.

class BindingWorkersBindingKindWasmModule: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the WebAssembly module content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["wasm_module"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVPCService: …

name: str

A JavaScript variable name for the binding.

service_id: str

Identifier of the VPC service to bind to.

type: Literal["vpc_service"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVPCNetwork: …

name: str

A JavaScript variable name for the binding.

type: Literal["vpc_network"]

The kind of resource that the binding provides.

network_id: Optional[str]

Identifier of the network to bind to. Only “cf1:network” is currently supported. Mutually exclusive with tunnel_id.

tunnel_id: Optional[str]

UUID of the Cloudflare Tunnel to bind to. Mutually exclusive with network_id.

cache_options: Optional[CacheOptions]

Global CacheW configuration for the Worker. When caching is on, the platform provisions a cloudflare.app zone for the Worker. A type: worker entry in the exports map can override this value for a single entrypoint.

enabled: bool

Whether caching is enabled for this Worker.

cross_version_cache: Optional[bool]

Whether cached responses are shared across Worker version uploads. This is independent of enabled. It can stay true while caching is off, so the preference survives turning caching off and back on.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

containers: Optional[List[Container]]

List of containers attached to a Worker. Containers can only be attached to Durable Object classes of this Worker script.

class_name: str

Select which Durable Object class should get this container attached.

exports: Optional[Dict[str, Exports]]

Declarative exports for the version, including Durable Object classes (with their storage backend) and named Worker entrypoints. On reads, tombstoned lifecycle entries are omitted, so only live exports (created and expecting-transfer) are returned. exports and migrations are mutually exclusive on upload.

One of the following:

class ExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

exports_reconciliation: Optional[ExportsReconciliation]

Summary of the declarative exports reconciliation that ran on this upload. Populated only when the uploaded metadata included an exports block. Durable Object entries drive reconciliation; type: worker entries do not contribute to this summary.

created: List[str]

Class names for which a new namespace was provisioned.

deleted: List[str]

Class names whose namespace was deleted by a deleted tombstone.

info: List[ExportsReconciliationInfo]

Non-blocking info entries (stale tombstones, tombstone applied with class still in code). See exports_reconciliation_info.

class_: str

The class name the info entry is about.

message: str

Human-readable explanation.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the entry relates to, when applicable.

formatuuid

referencing_scripts: Optional[List[str]]

Other Workers in the account that still bind to the affected class. Advisory: while non-empty the tombstone is not yet safe to remove — redeploy these Workers with bindings re-pointed first.

removable_entries: List[str]

Source class names whose tombstone entry is now stale and safe to delete from exports (no remaining referencing scripts).

renamed: List[ExportsReconciliationRenamed]

Applied renamed tombstones.

from_: str

The original (source) class name.

to: str

The new class name (renamed_to).

transfer_pending: List[ExportsReconciliationTransferPending]

Phase-1 transfer hints recorded on the target side.

class_: str

The target-side class name awaiting transfer.

from_: str

The source script the namespace will be transferred from.

transferred: List[ExportsReconciliationTransferred]

Committed transferred tombstones (phase-2).

class_: str

The source class name that was transferred.

phase: Literal["committed"]

The transfer phase. Currently always committed.

to: str

The destination script that now owns the namespace.

updated: List[str]

Class names whose provisioned namespace was mutated in place.

warnings: List[ExportsReconciliationWarning]

Non-blocking warnings. See exports_reconciliation_warning.

class_: str

The class name the warning is about.

message: str

Human-readable explanation of the warning.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the warning relates to, when applicable.

formatuuid

limits: Optional[Limits]

Resource limits enforced at runtime.

cpu_ms: Optional[int]

CPU time limit in milliseconds.

subrequests: Optional[int]

Subrequest limit per request.

main_module: Optional[str]

The name of the main module in the modules array (e.g. the name of the module that exports a fetch handler).

migration_tag: Optional[str]

Durable Object migration tag. Set when the version is deployed. Omitted if the version has not been deployed or the Worker does not use Durable Objects.

migrations: Optional[Migrations]

Migrations for Durable Objects associated with the version. Migrations are applied when the version is deployed.

One of the following:

class SingleStepMigration: …

A single set of migrations to apply.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

class MigrationsWorkersMultipleStepMigrations: …

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

steps: Optional[List[MigrationStep]]

Migrations to apply in order.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

modules: Optional[List[Module]]

Code, sourcemaps, and other content used at runtime.

This includes _headers and _redirects files used to configure Static Assets. _headers and _redirects files should be included as modules named _headers and _redirects with content type text/plain.

content_base64: str

The base64-encoded module content.

formatbyte

content_type: str

The content type of the module.

name: str

The name of the module.

package_dependencies: Optional[List[PackageDependency]]

The list of npm packages that were installed and used when this Worker version was built.

installed_version: str

The exact version that was resolved and installed by the package manager.

name: str

The npm package name.

package_json_version: str

The version constraint as written in package.json.

placement: Optional[Placement]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

class PlacementMode: …

mode: Literal["smart"]

Enables Smart Placement.

class PlacementRegion: …

region: str

Cloud region for targeted placement in format ‘provider:region’.

class PlacementHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementHost: …

host: str

TCP host and port for targeted placement.

class PlacementUnionMember4: …

mode: Literal["targeted"]

Targeted placement mode.

region: str

Cloud region for targeted placement in format ‘provider:region’.

class PlacementUnionMember5: …

hostname: str

HTTP hostname for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

class PlacementUnionMember6: …

host: str

TCP host and port for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

class PlacementUnionMember7: …

mode: Literal["targeted"]

Targeted placement mode.

target: List[PlacementUnionMember7Target]

Array of placement targets (currently limited to single target).

One of the following:

class PlacementUnionMember7TargetRegion: …

region: str

Cloud region in format ‘provider:region’.

class PlacementUnionMember7TargetHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementUnionMember7TargetHost: …

host: str

TCP host:port for targeted placement.

source: Optional[str]

The client used to create the version.

startup_time_ms: Optional[int]

Time in milliseconds spent on Worker startup.

Deprecatedusage_model: Optional[Literal["standard", "bundled", "unbound"]]

Usage model for the version.

One of the following:

"standard"

"bundled"

"unbound"

class VersionDeleteResponse: …

errors: List[Error]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[ErrorSource]

pointer: Optional[str]

messages: List[Message]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[MessageSource]

pointer: Optional[str]

success: Literal[true]

Whether the API call was successful.

WorkersRoutes

List Routes

workers.routes.list(RouteListParams**kwargs) -> SyncSinglePage[RouteListResponse]

GET/zones/{zone_id}/workers/routes

Get Route

workers.routes.get(strroute_id, RouteGetParams**kwargs) -> RouteGetResponse

GET/zones/{zone_id}/workers/routes/{route_id}

Create Route

workers.routes.create(RouteCreateParams**kwargs) -> RouteCreateResponse

POST/zones/{zone_id}/workers/routes

Update Route

workers.routes.update(strroute_id, RouteUpdateParams**kwargs) -> RouteUpdateResponse

PUT/zones/{zone_id}/workers/routes/{route_id}

Delete Route

workers.routes.delete(strroute_id, RouteDeleteParams**kwargs) -> RouteDeleteResponse

DELETE/zones/{zone_id}/workers/routes/{route_id}

ModelsExpand Collapse

class RouteListResponse: …

id: str

Identifier.

maxLength32

pattern: str

Pattern to match incoming requests against. Learn more.

script: Optional[str]

Name of the script to run if the route matches.

class RouteGetResponse: …

id: str

Identifier.

maxLength32

pattern: str

Pattern to match incoming requests against. Learn more.

script: Optional[str]

Name of the script to run if the route matches.

class RouteCreateResponse: …

id: str

Identifier.

maxLength32

pattern: str

Pattern to match incoming requests against. Learn more.

script: Optional[str]

Name of the script to run if the route matches.

class RouteUpdateResponse: …

id: str

Identifier.

maxLength32

pattern: str

Pattern to match incoming requests against. Learn more.

script: Optional[str]

Name of the script to run if the route matches.

class RouteDeleteResponse: …

id: Optional[str]

Identifier.

maxLength32

WorkersAssets

WorkersAssetsUpload

Upload Assets

workers.assets.upload.create(UploadCreateParams**kwargs) -> UploadCreateResponse

POST/accounts/{account_id}/workers/assets/upload

ModelsExpand Collapse

class UploadCreateResponse: …

jwt: Optional[str]

A “completion” JWT which can be redeemed when creating a Worker version.

WorkersScripts

List Workers

workers.scripts.list(ScriptListParams**kwargs) -> SyncSinglePage[ScriptListResponse]

GET/accounts/{account_id}/workers/scripts

Search Workers

workers.scripts.search(ScriptSearchParams**kwargs) -> ScriptSearchResponse

GET/accounts/{account_id}/workers/scripts-search

Download Worker

workers.scripts.get(strscript_name, ScriptGetParams**kwargs) -> ScriptGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}

Upload Worker Module

workers.scripts.update(strscript_name, ScriptUpdateParams**kwargs) -> ScriptUpdateResponse

PUT/accounts/{account_id}/workers/scripts/{script_name}

Delete Worker

workers.scripts.delete(strscript_name, ScriptDeleteParams**kwargs) -> object

DELETE/accounts/{account_id}/workers/scripts/{script_name}

ModelsExpand Collapse

class Script: …

id: Optional[str]

The name used to identify the script.

cache_options: Optional[CacheOptions]

Global CacheW configuration for the Worker. When caching is on, the platform provisions a cloudflare.app zone for the Worker. A type: worker entry in the exports map can override this value for a single entrypoint.

enabled: bool

Whether caching is enabled for this Worker.

cross_version_cache: Optional[bool]

Whether cached responses are shared across Worker version uploads. This is independent of enabled. It can stay true while caching is off, so the preference survives turning caching off and back on.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

created_on: Optional[datetime]

When the script was created.

formatdate-time

etag: Optional[str]

Hashed script content, can be used in a If-None-Match header when updating.

exports: Optional[Dict[str, Exports]]

Declarative exports for the Worker’s most recent version, including Durable Object classes (with their storage backend) and named Worker entrypoints. Tombstoned lifecycle entries are omitted, so only live exports (created and expecting-transfer) are returned.

One of the following:

class ExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

handlers: Optional[List[str]]

The names of handlers exported as part of the default export.

has_assets: Optional[bool]

Whether a Worker contains assets.

has_modules: Optional[bool]

Whether a Worker contains modules.

last_deployed_from: Optional[str]

The client most recently used to deploy this Worker.

logpush: Optional[bool]

Whether Logpush is turned on for the Worker.

migration_tag: Optional[str]

The tag of the Durable Object migration that was most recently applied for this Worker.

modified_on: Optional[datetime]

When the script was last modified.

formatdate-time

named_handlers: Optional[List[NamedHandler]]

Named exports, such as Durable Object class implementations and named entrypoints.

handlers: Optional[List[str]]

The names of handlers exported as part of the named export.

name: Optional[str]

The name of the export.

observability: Optional[Observability]

Observability settings for the Worker.

enabled: bool

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for incoming requests. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

enabled: bool

Whether logs are enabled for the Worker.

invocation_logs: bool

Whether invocation logs are enabled for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

placement: Optional[Placement]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

class PlacementUnionMember0: …

mode: Literal["smart"]

Enables Smart Placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember1: …

region: str

Cloud region for targeted placement in format ‘provider:region’.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember2: …

hostname: str

HTTP hostname for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember3: …

host: str

TCP host and port for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember4: …

mode: Literal["targeted"]

Targeted placement mode.

region: str

Cloud region for targeted placement in format ‘provider:region’.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember5: …

hostname: str

HTTP hostname for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember6: …

host: str

TCP host and port for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember7: …

mode: Literal["targeted"]

Targeted placement mode.

target: List[PlacementUnionMember7Target]

Array of placement targets (currently limited to single target).

One of the following:

class PlacementUnionMember7TargetRegion: …

region: str

Cloud region in format ‘provider:region’.

class PlacementUnionMember7TargetHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementUnionMember7TargetHost: …

host: str

TCP host:port for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

Deprecatedplacement_mode: Optional[Literal["smart", "targeted"]]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

"smart"

"targeted"

Deprecatedplacement_status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

tag: Optional[str]

The immutable ID of the script.

tags: Optional[List[str]]

Tags associated with the Worker.

tail_consumers: Optional[List[ConsumerScript]]

List of Workers that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

usage_model: Optional[Literal["standard", "bundled", "unbound"]]

Usage model for the Worker invocations.

One of the following:

"standard"

"bundled"

"unbound"

class ScriptSetting: …

logpush: Optional[bool]

Whether Logpush is turned on for the Worker.

observability: Optional[Observability]

Observability settings for the Worker.

enabled: bool

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for incoming requests. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

enabled: bool

Whether logs are enabled for the Worker.

invocation_logs: bool

Whether invocation logs are enabled for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

tags: Optional[List[str]]

Tags associated with the Worker.

tail_consumers: Optional[List[ConsumerScript]]

List of Workers that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

class ScriptListResponse: …

id: Optional[str]

The name used to identify the script.

cache_options: Optional[CacheOptions]

Global CacheW configuration for the Worker. When caching is on, the platform provisions a cloudflare.app zone for the Worker. A type: worker entry in the exports map can override this value for a single entrypoint.

enabled: bool

Whether caching is enabled for this Worker.

cross_version_cache: Optional[bool]

Whether cached responses are shared across Worker version uploads. This is independent of enabled. It can stay true while caching is off, so the preference survives turning caching off and back on.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

created_on: Optional[datetime]

When the script was created.

formatdate-time

etag: Optional[str]

Hashed script content, can be used in a If-None-Match header when updating.

exports: Optional[Dict[str, Exports]]

Declarative exports for the Worker’s most recent version, including Durable Object classes (with their storage backend) and named Worker entrypoints. Tombstoned lifecycle entries are omitted, so only live exports (created and expecting-transfer) are returned.

One of the following:

class ExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

handlers: Optional[List[str]]

The names of handlers exported as part of the default export.

has_assets: Optional[bool]

Whether a Worker contains assets.

has_modules: Optional[bool]

Whether a Worker contains modules.

last_deployed_from: Optional[str]

The client most recently used to deploy this Worker.

logpush: Optional[bool]

Whether Logpush is turned on for the Worker.

migration_tag: Optional[str]

The tag of the Durable Object migration that was most recently applied for this Worker.

modified_on: Optional[datetime]

When the script was last modified.

formatdate-time

named_handlers: Optional[List[NamedHandler]]

Named exports, such as Durable Object class implementations and named entrypoints.

handlers: Optional[List[str]]

The names of handlers exported as part of the named export.

name: Optional[str]

The name of the export.

observability: Optional[Observability]

Observability settings for the Worker.

enabled: bool

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for incoming requests. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

enabled: bool

Whether logs are enabled for the Worker.

invocation_logs: bool

Whether invocation logs are enabled for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

placement: Optional[Placement]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

class PlacementUnionMember0: …

mode: Literal["smart"]

Enables Smart Placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember1: …

region: str

Cloud region for targeted placement in format ‘provider:region’.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember2: …

hostname: str

HTTP hostname for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember3: …

host: str

TCP host and port for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember4: …

mode: Literal["targeted"]

Targeted placement mode.

region: str

Cloud region for targeted placement in format ‘provider:region’.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember5: …

hostname: str

HTTP hostname for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember6: …

host: str

TCP host and port for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember7: …

mode: Literal["targeted"]

Targeted placement mode.

target: List[PlacementUnionMember7Target]

Array of placement targets (currently limited to single target).

One of the following:

class PlacementUnionMember7TargetRegion: …

region: str

Cloud region in format ‘provider:region’.

class PlacementUnionMember7TargetHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementUnionMember7TargetHost: …

host: str

TCP host:port for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

Deprecatedplacement_mode: Optional[Literal["smart", "targeted"]]

One of the following:

"smart"

"targeted"

Deprecatedplacement_status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

routes: Optional[List[Route]]

Routes associated with the Worker.

id: str

Identifier.

maxLength32

pattern: str

Pattern to match incoming requests against. Learn more.

script: Optional[str]

Name of the script to run if the route matches.

tag: Optional[str]

The immutable ID of the script.

tags: Optional[List[str]]

Tags associated with the Worker.

tail_consumers: Optional[List[ConsumerScript]]

List of Workers that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

usage_model: Optional[Literal["standard", "bundled", "unbound"]]

Usage model for the Worker invocations.

One of the following:

"standard"

"bundled"

"unbound"

List[ScriptSearchResponseItem]

id: str

Identifier.

maxLength32

created_on: datetime

When the script was created.

formatdate-time

modified_on: datetime

When the script was last modified.

formatdate-time

script_name: str

Name of the script, used in URLs and route configuration.

environment_is_default: Optional[bool]

Whether the environment is the default environment.

environment_name: Optional[str]

Name of the environment.

service_name: Optional[str]

Name of the service.

str

class ScriptUpdateResponse: …

startup_time_ms: int

id: Optional[str]

The name used to identify the script.

cache_options: Optional[CacheOptions]

Global CacheW configuration for the Worker. When caching is on, the platform provisions a cloudflare.app zone for the Worker. A type: worker entry in the exports map can override this value for a single entrypoint.

enabled: bool

Whether caching is enabled for this Worker.

cross_version_cache: Optional[bool]

Whether cached responses are shared across Worker version uploads. This is independent of enabled. It can stay true while caching is off, so the preference survives turning caching off and back on.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

created_on: Optional[datetime]

When the script was created.

formatdate-time

entry_point: Optional[str]

The entry point for the script.

etag: Optional[str]

Hashed script content, can be used in a If-None-Match header when updating.

exports: Optional[Dict[str, Exports]]

Declarative exports for the Worker’s most recent version, including Durable Object classes (with their storage backend) and named Worker entrypoints. Tombstoned lifecycle entries are omitted, so only live exports (created and expecting-transfer) are returned.

One of the following:

class ExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

handlers: Optional[List[str]]

The names of handlers exported as part of the default export.

has_assets: Optional[bool]

Whether a Worker contains assets.

has_modules: Optional[bool]

Whether a Worker contains modules.

last_deployed_from: Optional[str]

The client most recently used to deploy this Worker.

logpush: Optional[bool]

Whether Logpush is turned on for the Worker.

migration_tag: Optional[str]

The tag of the Durable Object migration that was most recently applied for this Worker.

modified_on: Optional[datetime]

When the script was last modified.

formatdate-time

named_handlers: Optional[List[NamedHandler]]

Named exports, such as Durable Object class implementations and named entrypoints.

handlers: Optional[List[str]]

The names of handlers exported as part of the named export.

name: Optional[str]

The name of the export.

observability: Optional[Observability]

Observability settings for the Worker.

enabled: bool

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for incoming requests. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

enabled: bool

Whether logs are enabled for the Worker.

invocation_logs: bool

Whether invocation logs are enabled for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

placement: Optional[Placement]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

class PlacementUnionMember0: …

mode: Literal["smart"]

Enables Smart Placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember1: …

region: str

Cloud region for targeted placement in format ‘provider:region’.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember2: …

hostname: str

HTTP hostname for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember3: …

host: str

TCP host and port for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember4: …

mode: Literal["targeted"]

Targeted placement mode.

region: str

Cloud region for targeted placement in format ‘provider:region’.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember5: …

hostname: str

HTTP hostname for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember6: …

host: str

TCP host and port for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

class PlacementUnionMember7: …

mode: Literal["targeted"]

Targeted placement mode.

target: List[PlacementUnionMember7Target]

Array of placement targets (currently limited to single target).

One of the following:

class PlacementUnionMember7TargetRegion: …

region: str

Cloud region in format ‘provider:region’.

class PlacementUnionMember7TargetHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementUnionMember7TargetHost: …

host: str

TCP host:port for targeted placement.

last_analyzed_at: Optional[datetime]

The last time the script was analyzed for Smart Placement.

formatdate-time

status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

Status of Smart Placement.

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

Deprecatedplacement_mode: Optional[Literal["smart", "targeted"]]

One of the following:

"smart"

"targeted"

Deprecatedplacement_status: Optional[Literal["SUCCESS", "UNSUPPORTED_APPLICATION", "INSUFFICIENT_INVOCATIONS"]]

One of the following:

"SUCCESS"

"UNSUPPORTED_APPLICATION"

"INSUFFICIENT_INVOCATIONS"

tag: Optional[str]

The immutable ID of the script.

tags: Optional[List[str]]

Tags associated with the Worker.

tail_consumers: Optional[List[ConsumerScript]]

List of Workers that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

usage_model: Optional[Literal["standard", "bundled", "unbound"]]

Usage model for the Worker invocations.

One of the following:

"standard"

"bundled"

"unbound"

WorkersScriptsAssets

WorkersScriptsAssetsUpload

Create Assets Upload Session

workers.scripts.assets.upload.create(strscript_name, UploadCreateParams**kwargs) -> UploadCreateResponse

POST/accounts/{account_id}/workers/scripts/{script_name}/assets-upload-session

ModelsExpand Collapse

class UploadCreateResponse: …

buckets: Optional[List[List[str]]]

The requests to make to upload assets.

jwt: Optional[str]

A JWT to use as authentication for uploading assets.

WorkersScriptsSubdomain

Get Worker subdomain

workers.scripts.subdomain.get(strscript_name, SubdomainGetParams**kwargs) -> SubdomainGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/subdomain

Post Worker subdomain

workers.scripts.subdomain.create(strscript_name, SubdomainCreateParams**kwargs) -> SubdomainCreateResponse

POST/accounts/{account_id}/workers/scripts/{script_name}/subdomain

Delete Worker subdomain

workers.scripts.subdomain.delete(strscript_name, SubdomainDeleteParams**kwargs) -> SubdomainDeleteResponse

DELETE/accounts/{account_id}/workers/scripts/{script_name}/subdomain

ModelsExpand Collapse

class SubdomainGetResponse: …

enabled: bool

Whether the Worker is available on the workers.dev subdomain.

previews_enabled: bool

Whether the Worker’s Preview URLs are available on the workers.dev subdomain.

class SubdomainCreateResponse: …

enabled: bool

Whether the Worker is available on the workers.dev subdomain.

previews_enabled: bool

Whether the Worker’s Preview URLs are available on the workers.dev subdomain.

class SubdomainDeleteResponse: …

enabled: bool

Whether the Worker is available on the workers.dev subdomain.

previews_enabled: bool

Whether the Worker’s Preview URLs are available on the workers.dev subdomain.

WorkersScriptsSchedules

Get Cron Triggers

workers.scripts.schedules.get(strscript_name, ScheduleGetParams**kwargs) -> ScheduleGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/schedules

Update Cron Triggers

workers.scripts.schedules.update(strscript_name, ScheduleUpdateParams**kwargs) -> ScheduleUpdateResponse

PUT/accounts/{account_id}/workers/scripts/{script_name}/schedules

ModelsExpand Collapse

class ScheduleGetResponse: …

schedules: List[Schedule]

cron: str

created_on: Optional[str]

modified_on: Optional[str]

class ScheduleUpdateResponse: …

schedules: List[Schedule]

cron: str

created_on: Optional[str]

modified_on: Optional[str]

WorkersScriptsTail

List Tails

workers.scripts.tail.get(strscript_name, TailGetParams**kwargs) -> TailGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/tails

Start Tail

workers.scripts.tail.create(strscript_name, TailCreateParams**kwargs) -> TailCreateResponse

POST/accounts/{account_id}/workers/scripts/{script_name}/tails

Delete Tail

workers.scripts.tail.delete(strid, TailDeleteParams**kwargs) -> TailDeleteResponse

DELETE/accounts/{account_id}/workers/scripts/{script_name}/tails/{id}

ModelsExpand Collapse

class ConsumerScript: …

A reference to a script that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

class TailGetResponse: …

id: str

Identifier.

maxLength32

expires_at: str

url: str

class TailCreateResponse: …

id: str

Identifier.

maxLength32

expires_at: str

url: str

class TailDeleteResponse: …

errors: List[Error]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[ErrorSource]

pointer: Optional[str]

messages: List[Message]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[MessageSource]

pointer: Optional[str]

success: Literal[true]

Whether the API call was successful.

WorkersScriptsContent

Get script content

workers.scripts.content.get(strscript_name, ContentGetParams**kwargs) -> BinaryResponseContent

GET/accounts/{account_id}/workers/scripts/{script_name}/content/v2

Put script content

workers.scripts.content.update(strscript_name, ContentUpdateParams**kwargs) -> Script

PUT/accounts/{account_id}/workers/scripts/{script_name}/content

WorkersScriptsSettings

Get Script Settings

workers.scripts.settings.get(strscript_name, SettingGetParams**kwargs) -> ScriptSetting

GET/accounts/{account_id}/workers/scripts/{script_name}/script-settings

Patch Script Settings

workers.scripts.settings.edit(strscript_name, SettingEditParams**kwargs) -> ScriptSetting

PATCH/accounts/{account_id}/workers/scripts/{script_name}/script-settings

WorkersScriptsDeployments

List Deployments

workers.scripts.deployments.list(strscript_name, DeploymentListParams**kwargs) -> DeploymentListResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/deployments

Create Deployment

workers.scripts.deployments.create(strscript_name, DeploymentCreateParams**kwargs) -> Deployment

POST/accounts/{account_id}/workers/scripts/{script_name}/deployments

Get Deployment

workers.scripts.deployments.get(strdeployment_id, DeploymentGetParams**kwargs) -> Deployment

GET/accounts/{account_id}/workers/scripts/{script_name}/deployments/{deployment_id}

Delete Deployment

workers.scripts.deployments.delete(strdeployment_id, DeploymentDeleteParams**kwargs) -> DeploymentDeleteResponse

DELETE/accounts/{account_id}/workers/scripts/{script_name}/deployments/{deployment_id}

ModelsExpand Collapse

class Deployment: …

id: str

formatuuid

created_on: datetime

formatdate-time

source: str

strategy: Literal["percentage"]

versions: List[Version]

percentage: float

maximum100

minimum0.01

version_id: str

formatuuid

annotations: Optional[Annotations]

workers_message: Optional[str]

Human-readable message about the deployment. Truncated to 1000 bytes if longer.

maxLength1000

workers_triggered_by: Optional[str]

Operation that triggered the creation of the deployment.

author_email: Optional[str]

formatemail

class DeploymentListResponse: …

deployments: List[Deployment]

id: str

formatuuid

created_on: datetime

formatdate-time

source: str

strategy: Literal["percentage"]

versions: List[Version]

percentage: float

maximum100

minimum0.01

version_id: str

formatuuid

annotations: Optional[Annotations]

workers_message: Optional[str]

Human-readable message about the deployment. Truncated to 1000 bytes if longer.

maxLength1000

workers_triggered_by: Optional[str]

Operation that triggered the creation of the deployment.

author_email: Optional[str]

formatemail

class DeploymentDeleteResponse: …

errors: List[Error]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[ErrorSource]

pointer: Optional[str]

messages: List[Message]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[MessageSource]

pointer: Optional[str]

success: Literal[true]

Whether the API call was successful.

WorkersScriptsVersions

List Versions

workers.scripts.versions.list(strscript_name, VersionListParams**kwargs) -> SyncV4PagePagination[VersionListResponse]

GET/accounts/{account_id}/workers/scripts/{script_name}/versions

Get Version Detail

workers.scripts.versions.get(strversion_id, VersionGetParams**kwargs) -> VersionGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/versions/{version_id}

Upload Version

workers.scripts.versions.create(strscript_name, VersionCreateParams**kwargs) -> VersionCreateResponse

POST/accounts/{account_id}/workers/scripts/{script_name}/versions

ModelsExpand Collapse

class VersionListResponse: …

id: Optional[str]

Unique identifier for the version.

metadata: Optional[Metadata]

author_email: Optional[str]

Email of the user who created the version.

author_id: Optional[str]

Identifier of the user who created the version.

created_on: Optional[str]

When the version was created.

has_preview: Optional[bool]

Whether the version can be previewed.

modified_on: Optional[str]

When the version was last modified.

source: Optional[Literal["unknown", "api", "wrangler", 8 more]]

The source of the version upload.

One of the following:

"unknown"

"api"

"wrangler"

"terraform"

"dash"

"cf_cli"

"dash_template"

"integration"

"quick_editor"

"playground"

"workersci"

number: Optional[float]

Sequential version number.

class VersionGetResponse: …

resources: Resources

bindings: Optional[List[ResourcesBinding]]

List of bindings attached to a Worker. You can find more about bindings on our docs: https://developers.cloudflare.com/workers/configuration/multipart-upload-metadata/#bindings.

One of the following:

class ResourcesBindingWorkersBindingKindAI: …

name: str

A JavaScript variable name for the binding.

type: Literal["ai"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindAISearch: …

instance_name: str

The user-chosen instance name. Must exist at deploy time. The worker can search, chat, update, and manage items/jobs on this instance.

name: str

A JavaScript variable name for the binding.

type: Literal["ai_search"]

The kind of resource that the binding provides.

namespace: Optional[str]

The namespace the instance belongs to. Defaults to “default” if omitted. Customers who don’t use namespaces can simply omit this field.

class ResourcesBindingWorkersBindingKindAISearchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The user-chosen namespace name. Must exist before deploy — Wrangler handles auto-creation on deploy failure (R2 bucket pattern). The “default” namespace is auto-created by config-api for new accounts. Grants full access (CRUD + search + chat) to all instances within the namespace.

type: Literal["ai_search_namespace"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindMessaging: …

name: str

A JavaScript variable name for the binding.

namespace: str

The Messaging namespace to bind to.

type: Literal["messaging"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindAnalyticsEngine: …

dataset: str

The name of the dataset to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["analytics_engine"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindAssets: …

name: str

A JavaScript variable name for the binding.

type: Literal["assets"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindBrowser: …

name: str

A JavaScript variable name for the binding.

type: Literal["browser"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindD1: …

database_id: str

Identifier of the D1 database to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["d1"]

The kind of resource that the binding provides.

Deprecatedid: Optional[str]

This property has been renamed to database_id.

Identifier of the D1 database to bind to.

class ResourcesBindingWorkersBindingKindDataBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the data content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["data_blob"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindDispatchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The name of the dispatch namespace.

type: Literal["dispatch_namespace"]

The kind of resource that the binding provides.

outbound: Optional[ResourcesBindingWorkersBindingKindDispatchNamespaceOutbound]

Outbound worker.

params: Optional[List[ResourcesBindingWorkersBindingKindDispatchNamespaceOutboundParam]]

Pass information from the Dispatch Worker to the Outbound Worker through the parameters.

name: str

Name of the parameter.

worker: Optional[ResourcesBindingWorkersBindingKindDispatchNamespaceOutboundWorker]

Outbound worker.

entrypoint: Optional[str]

Entrypoint to invoke on the outbound worker.

environment: Optional[str]

Environment of the outbound worker.

service: Optional[str]

Name of the outbound worker.

class ResourcesBindingWorkersBindingKindDurableObjectNamespace: …

name: str

A JavaScript variable name for the binding.

type: Literal["durable_object_namespace"]

The kind of resource that the binding provides.

class_name: Optional[str]

The exported class name of the Durable Object.

dispatch_namespace: Optional[str]

The dispatch namespace the Durable Object script belongs to.

environment: Optional[str]

The environment of the script_name to bind to.

namespace_id: Optional[str]

Namespace identifier tag.

maxLength32

script_name: Optional[str]

The script where the Durable Object is defined, if it is external to this Worker.

class ResourcesBindingWorkersBindingKindHyperdrive: …

id: str

Identifier of the Hyperdrive connection to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["hyperdrive"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindInherit: …

name: str

The name of the inherited binding.

type: Literal["inherit"]

The kind of resource that the binding provides.

old_name: Optional[str]

The old name of the inherited binding. If set, the binding will be renamed from old_name to name in the new version. If not set, the binding will keep the same name between versions.

version_id: Optional[str]

Identifier for the version to inherit the binding from, which can be the version ID or the literal “latest” to inherit from the latest version. Defaults to inheriting the binding from the latest version.

class ResourcesBindingWorkersBindingKindImages: …

name: str

A JavaScript variable name for the binding.

type: Literal["images"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindJson: …

json: object

JSON data to use.

name: str

A JavaScript variable name for the binding.

type: Literal["json"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindKVNamespace: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Namespace identifier tag.

maxLength32

type: Literal["kv_namespace"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindMedia: …

name: str

A JavaScript variable name for the binding.

type: Literal["media"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindMTLSCertificate: …

certificate_id: str

Identifier of the certificate to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["mtls_certificate"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindPlainText: …

name: str

A JavaScript variable name for the binding.

text: str

The text value to use.

type: Literal["plain_text"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindPipelines: …

name: str

A JavaScript variable name for the binding.

pipeline: str

Name of the Pipeline to bind to.

type: Literal["pipelines"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindQueue: …

name: str

A JavaScript variable name for the binding.

queue_name: str

Name of the Queue to bind to.

type: Literal["queue"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindRatelimit: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Identifier of the rate limit namespace to bind to.

simple: ResourcesBindingWorkersBindingKindRatelimitSimple

The rate limit configuration.

limit: float

The limit (requests per period).

period: int

The period in seconds.

mitigation_timeout: Optional[int]

Duration in seconds to apply the mitigation action after the rate limit is exceeded. Valid values are 0 (disabled), 10, or multiples of 60 up to 86400. Must be greater than or equal to the period when non-zero.

type: Literal["ratelimit"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindR2Bucket: …

bucket_name: str

R2 bucket to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["r2_bucket"]

The kind of resource that the binding provides.

jurisdiction: Optional[Literal["eu", "fedramp", "fedramp-high"]]

The jurisdiction of the R2 bucket.

One of the following:

"eu"

"fedramp"

"fedramp-high"

class ResourcesBindingWorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindSendEmail: …

name: str

A JavaScript variable name for the binding.

type: Literal["send_email"]

The kind of resource that the binding provides.

allowed_destination_addresses: Optional[List[str]]

List of allowed destination addresses.

allowed_sender_addresses: Optional[List[str]]

List of allowed sender addresses.

destination_address: Optional[str]

Destination address for the email.

formatemail

class ResourcesBindingWorkersBindingKindService: …

name: str

A JavaScript variable name for the binding.

service: str

Name of Worker to bind to.

type: Literal["service"]

The kind of resource that the binding provides.

entrypoint: Optional[str]

Entrypoint to invoke on the target Worker.

environment: Optional[str]

Optional environment if the Worker utilizes one.

class ResourcesBindingWorkersBindingKindTextBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the text content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["text_blob"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVectorize: …

index_name: str

Name of the Vectorize index to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["vectorize"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVersionMetadata: …

name: str

A JavaScript variable name for the binding.

type: Literal["version_metadata"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindSecretsStoreSecret: …

name: str

A JavaScript variable name for the binding.

secret_name: str

Name of the secret in the store.

store_id: str

ID of the store containing the secret.

type: Literal["secrets_store_secret"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindFlagship: …

app_id: str

ID of the Flagship app to bind to for feature flag evaluation.

maxLength128

name: str

A JavaScript variable name for the binding.

type: Literal["flagship"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

class ResourcesBindingWorkersBindingKindWorkflow: …

name: str

A JavaScript variable name for the binding.

type: Literal["workflow"]

The kind of resource that the binding provides.

workflow_name: str

Name of the Workflow to bind to.

class_name: Optional[str]

Class name of the Workflow. Should only be provided if the Workflow belongs to this script.

script_name: Optional[str]

Script name that contains the Workflow. If not provided, defaults to this script name.

class ResourcesBindingWorkersBindingKindWasmModule: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the WebAssembly module content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["wasm_module"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVPCService: …

name: str

A JavaScript variable name for the binding.

service_id: str

Identifier of the VPC service to bind to.

type: Literal["vpc_service"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVPCNetwork: …

name: str

A JavaScript variable name for the binding.

type: Literal["vpc_network"]

The kind of resource that the binding provides.

network_id: Optional[str]

Identifier of the network to bind to. Only “cf1:network” is currently supported. Mutually exclusive with tunnel_id.

tunnel_id: Optional[str]

UUID of the Cloudflare Tunnel to bind to. Mutually exclusive with network_id.

script: Optional[ResourcesScript]

etag: Optional[str]

Hashed script content

handlers: Optional[List[str]]

The names of handlers exported as part of the default export.

last_deployed_from: Optional[str]

The client most recently used to deploy this Worker.

named_handlers: Optional[List[ResourcesScriptNamedHandler]]

Named exports, such as Durable Object class implementations and named entrypoints.

handlers: Optional[List[str]]

The names of handlers exported as part of the named export.

name: Optional[str]

The name of the exported class or entrypoint.

script_runtime: Optional[ResourcesScriptRuntime]

Runtime configuration for the Worker.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime.

exports: Optional[Dict[str, ResourcesScriptRuntimeExports]]

Declarative exports for this version, including Durable Object classes (with their storage backend) and named Worker entrypoints. Tombstoned lifecycle entries are omitted, so only live exports (created and expecting-transfer) are returned.

One of the following:

class ResourcesScriptRuntimeExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ResourcesScriptRuntimeExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ResourcesScriptRuntimeExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ResourcesScriptRuntimeExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ResourcesScriptRuntimeExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ResourcesScriptRuntimeExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ResourcesScriptRuntimeExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

limits: Optional[ResourcesScriptRuntimeLimits]

Resource limits for the Worker.

cpu_ms: Optional[int]

The amount of CPU time this Worker can use in milliseconds.

migration_tag: Optional[str]

The tag of the Durable Object migration that was most recently applied for this Worker.

usage_model: Optional[Literal["bundled", "unbound", "standard"]]

Usage model for the Worker invocations.

One of the following:

"bundled"

"unbound"

"standard"

id: Optional[str]

Unique identifier for the version.

metadata: Optional[Metadata]

author_email: Optional[str]

Email of the user who created the version.

author_id: Optional[str]

Identifier of the user who created the version.

created_on: Optional[str]

When the version was created.

has_preview: Optional[bool]

Whether the version can be previewed.

modified_on: Optional[str]

When the version was last modified.

source: Optional[Literal["unknown", "api", "wrangler", 8 more]]

The source of the version upload.

One of the following:

"unknown"

"api"

"wrangler"

"terraform"

"dash"

"cf_cli"

"dash_template"

"integration"

"quick_editor"

"playground"

"workersci"

number: Optional[float]

Sequential version number.

class VersionCreateResponse: …

resources: Resources

bindings: Optional[List[ResourcesBinding]]

List of bindings attached to a Worker. You can find more about bindings on our docs: https://developers.cloudflare.com/workers/configuration/multipart-upload-metadata/#bindings.

One of the following:

class ResourcesBindingWorkersBindingKindAI: …

name: str

A JavaScript variable name for the binding.

type: Literal["ai"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindAISearch: …

instance_name: str

The user-chosen instance name. Must exist at deploy time. The worker can search, chat, update, and manage items/jobs on this instance.

name: str

A JavaScript variable name for the binding.

type: Literal["ai_search"]

The kind of resource that the binding provides.

namespace: Optional[str]

The namespace the instance belongs to. Defaults to “default” if omitted. Customers who don’t use namespaces can simply omit this field.

class ResourcesBindingWorkersBindingKindAISearchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The user-chosen namespace name. Must exist before deploy — Wrangler handles auto-creation on deploy failure (R2 bucket pattern). The “default” namespace is auto-created by config-api for new accounts. Grants full access (CRUD + search + chat) to all instances within the namespace.

type: Literal["ai_search_namespace"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindMessaging: …

name: str

A JavaScript variable name for the binding.

namespace: str

The Messaging namespace to bind to.

type: Literal["messaging"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindAnalyticsEngine: …

dataset: str

The name of the dataset to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["analytics_engine"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindAssets: …

name: str

A JavaScript variable name for the binding.

type: Literal["assets"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindBrowser: …

name: str

A JavaScript variable name for the binding.

type: Literal["browser"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindD1: …

database_id: str

Identifier of the D1 database to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["d1"]

The kind of resource that the binding provides.

Deprecatedid: Optional[str]

This property has been renamed to database_id.

Identifier of the D1 database to bind to.

class ResourcesBindingWorkersBindingKindDataBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the data content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["data_blob"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindDispatchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The name of the dispatch namespace.

type: Literal["dispatch_namespace"]

The kind of resource that the binding provides.

outbound: Optional[ResourcesBindingWorkersBindingKindDispatchNamespaceOutbound]

Outbound worker.

params: Optional[List[ResourcesBindingWorkersBindingKindDispatchNamespaceOutboundParam]]

Pass information from the Dispatch Worker to the Outbound Worker through the parameters.

name: str

Name of the parameter.

worker: Optional[ResourcesBindingWorkersBindingKindDispatchNamespaceOutboundWorker]

Outbound worker.

entrypoint: Optional[str]

Entrypoint to invoke on the outbound worker.

environment: Optional[str]

Environment of the outbound worker.

service: Optional[str]

Name of the outbound worker.

class ResourcesBindingWorkersBindingKindDurableObjectNamespace: …

name: str

A JavaScript variable name for the binding.

type: Literal["durable_object_namespace"]

The kind of resource that the binding provides.

class_name: Optional[str]

The exported class name of the Durable Object.

dispatch_namespace: Optional[str]

The dispatch namespace the Durable Object script belongs to.

environment: Optional[str]

The environment of the script_name to bind to.

namespace_id: Optional[str]

Namespace identifier tag.

maxLength32

script_name: Optional[str]

The script where the Durable Object is defined, if it is external to this Worker.

class ResourcesBindingWorkersBindingKindHyperdrive: …

id: str

Identifier of the Hyperdrive connection to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["hyperdrive"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindInherit: …

name: str

The name of the inherited binding.

type: Literal["inherit"]

The kind of resource that the binding provides.

old_name: Optional[str]

The old name of the inherited binding. If set, the binding will be renamed from old_name to name in the new version. If not set, the binding will keep the same name between versions.

version_id: Optional[str]

Identifier for the version to inherit the binding from, which can be the version ID or the literal “latest” to inherit from the latest version. Defaults to inheriting the binding from the latest version.

class ResourcesBindingWorkersBindingKindImages: …

name: str

A JavaScript variable name for the binding.

type: Literal["images"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindJson: …

json: object

JSON data to use.

name: str

A JavaScript variable name for the binding.

type: Literal["json"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindKVNamespace: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Namespace identifier tag.

maxLength32

type: Literal["kv_namespace"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindMedia: …

name: str

A JavaScript variable name for the binding.

type: Literal["media"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindMTLSCertificate: …

certificate_id: str

Identifier of the certificate to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["mtls_certificate"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindPlainText: …

name: str

A JavaScript variable name for the binding.

text: str

The text value to use.

type: Literal["plain_text"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindPipelines: …

name: str

A JavaScript variable name for the binding.

pipeline: str

Name of the Pipeline to bind to.

type: Literal["pipelines"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindQueue: …

name: str

A JavaScript variable name for the binding.

queue_name: str

Name of the Queue to bind to.

type: Literal["queue"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindRatelimit: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Identifier of the rate limit namespace to bind to.

simple: ResourcesBindingWorkersBindingKindRatelimitSimple

The rate limit configuration.

limit: float

The limit (requests per period).

period: int

The period in seconds.

mitigation_timeout: Optional[int]

Duration in seconds to apply the mitigation action after the rate limit is exceeded. Valid values are 0 (disabled), 10, or multiples of 60 up to 86400. Must be greater than or equal to the period when non-zero.

type: Literal["ratelimit"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindR2Bucket: …

bucket_name: str

R2 bucket to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["r2_bucket"]

The kind of resource that the binding provides.

jurisdiction: Optional[Literal["eu", "fedramp", "fedramp-high"]]

The jurisdiction of the R2 bucket.

One of the following:

"eu"

"fedramp"

"fedramp-high"

class ResourcesBindingWorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindSendEmail: …

name: str

A JavaScript variable name for the binding.

type: Literal["send_email"]

The kind of resource that the binding provides.

allowed_destination_addresses: Optional[List[str]]

List of allowed destination addresses.

allowed_sender_addresses: Optional[List[str]]

List of allowed sender addresses.

destination_address: Optional[str]

Destination address for the email.

formatemail

class ResourcesBindingWorkersBindingKindService: …

name: str

A JavaScript variable name for the binding.

service: str

Name of Worker to bind to.

type: Literal["service"]

The kind of resource that the binding provides.

entrypoint: Optional[str]

Entrypoint to invoke on the target Worker.

environment: Optional[str]

Optional environment if the Worker utilizes one.

class ResourcesBindingWorkersBindingKindTextBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the text content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["text_blob"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVectorize: …

index_name: str

Name of the Vectorize index to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["vectorize"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVersionMetadata: …

name: str

A JavaScript variable name for the binding.

type: Literal["version_metadata"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindSecretsStoreSecret: …

name: str

A JavaScript variable name for the binding.

secret_name: str

Name of the secret in the store.

store_id: str

ID of the store containing the secret.

type: Literal["secrets_store_secret"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindFlagship: …

app_id: str

ID of the Flagship app to bind to for feature flag evaluation.

maxLength128

name: str

A JavaScript variable name for the binding.

type: Literal["flagship"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

class ResourcesBindingWorkersBindingKindWorkflow: …

name: str

A JavaScript variable name for the binding.

type: Literal["workflow"]

The kind of resource that the binding provides.

workflow_name: str

Name of the Workflow to bind to.

class_name: Optional[str]

Class name of the Workflow. Should only be provided if the Workflow belongs to this script.

script_name: Optional[str]

Script name that contains the Workflow. If not provided, defaults to this script name.

class ResourcesBindingWorkersBindingKindWasmModule: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the WebAssembly module content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["wasm_module"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVPCService: …

name: str

A JavaScript variable name for the binding.

service_id: str

Identifier of the VPC service to bind to.

type: Literal["vpc_service"]

The kind of resource that the binding provides.

class ResourcesBindingWorkersBindingKindVPCNetwork: …

name: str

A JavaScript variable name for the binding.

type: Literal["vpc_network"]

The kind of resource that the binding provides.

network_id: Optional[str]

Identifier of the network to bind to. Only “cf1:network” is currently supported. Mutually exclusive with tunnel_id.

tunnel_id: Optional[str]

UUID of the Cloudflare Tunnel to bind to. Mutually exclusive with network_id.

script: Optional[ResourcesScript]

etag: Optional[str]

Hashed script content

handlers: Optional[List[str]]

The names of handlers exported as part of the default export.

last_deployed_from: Optional[str]

The client most recently used to deploy this Worker.

named_handlers: Optional[List[ResourcesScriptNamedHandler]]

Named exports, such as Durable Object class implementations and named entrypoints.

handlers: Optional[List[str]]

The names of handlers exported as part of the named export.

name: Optional[str]

The name of the exported class or entrypoint.

script_runtime: Optional[ResourcesScriptRuntime]

Runtime configuration for the Worker.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime.

exports: Optional[Dict[str, ResourcesScriptRuntimeExports]]

Declarative exports for this version, including Durable Object classes (with their storage backend) and named Worker entrypoints. Tombstoned lifecycle entries are omitted, so only live exports (created and expecting-transfer) are returned.

One of the following:

class ResourcesScriptRuntimeExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ResourcesScriptRuntimeExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ResourcesScriptRuntimeExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ResourcesScriptRuntimeExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ResourcesScriptRuntimeExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ResourcesScriptRuntimeExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ResourcesScriptRuntimeExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

limits: Optional[ResourcesScriptRuntimeLimits]

Resource limits for the Worker.

cpu_ms: Optional[int]

The amount of CPU time this Worker can use in milliseconds.

migration_tag: Optional[str]

The tag of the Durable Object migration that was most recently applied for this Worker.

usage_model: Optional[Literal["bundled", "unbound", "standard"]]

Usage model for the Worker invocations.

One of the following:

"bundled"

"unbound"

"standard"

id: Optional[str]

Unique identifier for the version.

exports_reconciliation: Optional[ExportsReconciliation]

Summary of the declarative exports reconciliation that ran on this upload. Populated only when the uploaded metadata included an exports block. Durable Object entries drive reconciliation; type: worker entries do not contribute to this summary.

created: List[str]

Class names for which a new namespace was provisioned.

deleted: List[str]

Class names whose namespace was deleted by a deleted tombstone.

info: List[ExportsReconciliationInfo]

Non-blocking info entries (stale tombstones, tombstone applied with class still in code). See exports_reconciliation_info.

class_: str

The class name the info entry is about.

message: str

Human-readable explanation.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the entry relates to, when applicable.

formatuuid

referencing_scripts: Optional[List[str]]

Other Workers in the account that still bind to the affected class. Advisory: while non-empty the tombstone is not yet safe to remove — redeploy these Workers with bindings re-pointed first.

removable_entries: List[str]

Source class names whose tombstone entry is now stale and safe to delete from exports (no remaining referencing scripts).

renamed: List[ExportsReconciliationRenamed]

Applied renamed tombstones.

from_: str

The original (source) class name.

to: str

The new class name (renamed_to).

transfer_pending: List[ExportsReconciliationTransferPending]

Phase-1 transfer hints recorded on the target side.

class_: str

The target-side class name awaiting transfer.

from_: str

The source script the namespace will be transferred from.

transferred: List[ExportsReconciliationTransferred]

Committed transferred tombstones (phase-2).

class_: str

The source class name that was transferred.

phase: Literal["committed"]

The transfer phase. Currently always committed.

to: str

The destination script that now owns the namespace.

updated: List[str]

Class names whose provisioned namespace was mutated in place.

warnings: List[ExportsReconciliationWarning]

Non-blocking warnings. See exports_reconciliation_warning.

class_: str

The class name the warning is about.

message: str

Human-readable explanation of the warning.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the warning relates to, when applicable.

formatuuid

metadata: Optional[Metadata]

author_email: Optional[str]

Email of the user who created the version.

author_id: Optional[str]

Identifier of the user who created the version.

created_on: Optional[str]

When the version was created.

has_preview: Optional[bool]

Whether the version can be previewed.

modified_on: Optional[str]

When the version was last modified.

source: Optional[Literal["unknown", "api", "wrangler", 8 more]]

The source of the version upload.

One of the following:

"unknown"

"api"

"wrangler"

"terraform"

"dash"

"cf_cli"

"dash_template"

"integration"

"quick_editor"

"playground"

"workersci"

number: Optional[float]

Sequential version number.

startup_time_ms: Optional[int]

Time in milliseconds spent on Worker startup.

WorkersScriptsSecrets

List script secrets

workers.scripts.secrets.list(strscript_name, SecretListParams**kwargs) -> SyncSinglePage[SecretListResponse]

GET/accounts/{account_id}/workers/scripts/{script_name}/secrets

Get secret binding

workers.scripts.secrets.get(strsecret_name, SecretGetParams**kwargs) -> SecretGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/secrets/{secret_name}

Add script secret

workers.scripts.secrets.update(strscript_name, SecretUpdateParams**kwargs) -> SecretUpdateResponse

PUT/accounts/{account_id}/workers/scripts/{script_name}/secrets

Delete script secret

workers.scripts.secrets.delete(strsecret_name, SecretDeleteParams**kwargs) -> object

DELETE/accounts/{account_id}/workers/scripts/{script_name}/secrets/{secret_name}

Patch multiple script secrets

workers.scripts.secrets.bulk_update(strscript_name, SecretBulkUpdateParams**kwargs) -> SecretBulkUpdateResponse

PATCH/accounts/{account_id}/workers/scripts/{script_name}/secrets-bulk

ModelsExpand Collapse

SecretListResponse

A secret value accessible through a binding.

One of the following:

class WorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class WorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

SecretGetResponse

A secret value accessible through a binding.

One of the following:

class WorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class WorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

SecretUpdateResponse

A secret value accessible through a binding.

One of the following:

class WorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class WorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

Dict[str, SecretBulkUpdateResponseItem]

Map of secret names to secret metadata for resulting secrets.

One of the following:

class SecretBulkUpdateResponseItemWorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class SecretBulkUpdateResponseItemWorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

WorkersScriptsScript And Version Settings

Get Settings

workers.scripts.script_and_version_settings.get(strscript_name, ScriptAndVersionSettingGetParams**kwargs) -> ScriptAndVersionSettingGetResponse

GET/accounts/{account_id}/workers/scripts/{script_name}/settings

Patch Settings

workers.scripts.script_and_version_settings.edit(strscript_name, ScriptAndVersionSettingEditParams**kwargs) -> ScriptAndVersionSettingEditResponse

PATCH/accounts/{account_id}/workers/scripts/{script_name}/settings

ModelsExpand Collapse

class ScriptAndVersionSettingGetResponse: …

annotations: Optional[Annotations]

Annotations for the Worker version. Annotations are not inherited across settings updates; omitting this field means the new version will have no annotations.

workers_message: Optional[str]

Human-readable message about the version. Truncated to 1000 bytes if longer.

maxLength1000

workers_tag: Optional[str]

User-provided identifier for the version. Maximum 100 bytes.

maxLength100

workers_triggered_by: Optional[str]

Operation that triggered the creation of the version. This is read-only and set by the server.

bindings: Optional[List[Binding]]

List of bindings attached to a Worker. You can find more about bindings on our docs: https://developers.cloudflare.com/workers/configuration/multipart-upload-metadata/#bindings.

One of the following:

class BindingWorkersBindingKindAI: …

name: str

A JavaScript variable name for the binding.

type: Literal["ai"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAISearch: …

instance_name: str

The user-chosen instance name. Must exist at deploy time. The worker can search, chat, update, and manage items/jobs on this instance.

name: str

A JavaScript variable name for the binding.

type: Literal["ai_search"]

The kind of resource that the binding provides.

namespace: Optional[str]

The namespace the instance belongs to. Defaults to “default” if omitted. Customers who don’t use namespaces can simply omit this field.

class BindingWorkersBindingKindAISearchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The user-chosen namespace name. Must exist before deploy — Wrangler handles auto-creation on deploy failure (R2 bucket pattern). The “default” namespace is auto-created by config-api for new accounts. Grants full access (CRUD + search + chat) to all instances within the namespace.

type: Literal["ai_search_namespace"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMessaging: …

name: str

A JavaScript variable name for the binding.

namespace: str

The Messaging namespace to bind to.

type: Literal["messaging"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAnalyticsEngine: …

dataset: str

The name of the dataset to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["analytics_engine"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAssets: …

name: str

A JavaScript variable name for the binding.

type: Literal["assets"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindBrowser: …

name: str

A JavaScript variable name for the binding.

type: Literal["browser"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindD1: …

database_id: str

Identifier of the D1 database to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["d1"]

The kind of resource that the binding provides.

Deprecatedid: Optional[str]

This property has been renamed to database_id.

Identifier of the D1 database to bind to.

class BindingWorkersBindingKindDataBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the data content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["data_blob"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindDispatchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The name of the dispatch namespace.

type: Literal["dispatch_namespace"]

The kind of resource that the binding provides.

outbound: Optional[BindingWorkersBindingKindDispatchNamespaceOutbound]

Outbound worker.

params: Optional[List[BindingWorkersBindingKindDispatchNamespaceOutboundParam]]

Pass information from the Dispatch Worker to the Outbound Worker through the parameters.

name: str

Name of the parameter.

worker: Optional[BindingWorkersBindingKindDispatchNamespaceOutboundWorker]

Outbound worker.

entrypoint: Optional[str]

Entrypoint to invoke on the outbound worker.

environment: Optional[str]

Environment of the outbound worker.

service: Optional[str]

Name of the outbound worker.

class BindingWorkersBindingKindDurableObjectNamespace: …

name: str

A JavaScript variable name for the binding.

type: Literal["durable_object_namespace"]

The kind of resource that the binding provides.

class_name: Optional[str]

The exported class name of the Durable Object.

dispatch_namespace: Optional[str]

The dispatch namespace the Durable Object script belongs to.

environment: Optional[str]

The environment of the script_name to bind to.

namespace_id: Optional[str]

Namespace identifier tag.

maxLength32

script_name: Optional[str]

The script where the Durable Object is defined, if it is external to this Worker.

class BindingWorkersBindingKindHyperdrive: …

id: str

Identifier of the Hyperdrive connection to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["hyperdrive"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindInherit: …

name: str

The name of the inherited binding.

type: Literal["inherit"]

The kind of resource that the binding provides.

old_name: Optional[str]

The old name of the inherited binding. If set, the binding will be renamed from old_name to name in the new version. If not set, the binding will keep the same name between versions.

version_id: Optional[str]

Identifier for the version to inherit the binding from, which can be the version ID or the literal “latest” to inherit from the latest version. Defaults to inheriting the binding from the latest version.

class BindingWorkersBindingKindImages: …

name: str

A JavaScript variable name for the binding.

type: Literal["images"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindJson: …

json: object

JSON data to use.

name: str

A JavaScript variable name for the binding.

type: Literal["json"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindKVNamespace: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Namespace identifier tag.

maxLength32

type: Literal["kv_namespace"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMedia: …

name: str

A JavaScript variable name for the binding.

type: Literal["media"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMTLSCertificate: …

certificate_id: str

Identifier of the certificate to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["mtls_certificate"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindPlainText: …

name: str

A JavaScript variable name for the binding.

text: str

The text value to use.

type: Literal["plain_text"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindPipelines: …

name: str

A JavaScript variable name for the binding.

pipeline: str

Name of the Pipeline to bind to.

type: Literal["pipelines"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindQueue: …

name: str

A JavaScript variable name for the binding.

queue_name: str

Name of the Queue to bind to.

type: Literal["queue"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindRatelimit: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Identifier of the rate limit namespace to bind to.

simple: BindingWorkersBindingKindRatelimitSimple

The rate limit configuration.

limit: float

The limit (requests per period).

period: int

The period in seconds.

mitigation_timeout: Optional[int]

Duration in seconds to apply the mitigation action after the rate limit is exceeded. Valid values are 0 (disabled), 10, or multiples of 60 up to 86400. Must be greater than or equal to the period when non-zero.

type: Literal["ratelimit"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindR2Bucket: …

bucket_name: str

R2 bucket to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["r2_bucket"]

The kind of resource that the binding provides.

jurisdiction: Optional[Literal["eu", "fedramp", "fedramp-high"]]

The jurisdiction of the R2 bucket.

One of the following:

"eu"

"fedramp"

"fedramp-high"

class BindingWorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSendEmail: …

name: str

A JavaScript variable name for the binding.

type: Literal["send_email"]

The kind of resource that the binding provides.

allowed_destination_addresses: Optional[List[str]]

List of allowed destination addresses.

allowed_sender_addresses: Optional[List[str]]

List of allowed sender addresses.

destination_address: Optional[str]

Destination address for the email.

formatemail

class BindingWorkersBindingKindService: …

name: str

A JavaScript variable name for the binding.

service: str

Name of Worker to bind to.

type: Literal["service"]

The kind of resource that the binding provides.

entrypoint: Optional[str]

Entrypoint to invoke on the target Worker.

environment: Optional[str]

Optional environment if the Worker utilizes one.

class BindingWorkersBindingKindTextBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the text content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["text_blob"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVectorize: …

index_name: str

Name of the Vectorize index to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["vectorize"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVersionMetadata: …

name: str

A JavaScript variable name for the binding.

type: Literal["version_metadata"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSecretsStoreSecret: …

name: str

A JavaScript variable name for the binding.

secret_name: str

Name of the secret in the store.

store_id: str

ID of the store containing the secret.

type: Literal["secrets_store_secret"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindFlagship: …

app_id: str

ID of the Flagship app to bind to for feature flag evaluation.

maxLength128

name: str

A JavaScript variable name for the binding.

type: Literal["flagship"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

class BindingWorkersBindingKindWorkflow: …

name: str

A JavaScript variable name for the binding.

type: Literal["workflow"]

The kind of resource that the binding provides.

workflow_name: str

Name of the Workflow to bind to.

class_name: Optional[str]

Class name of the Workflow. Should only be provided if the Workflow belongs to this script.

script_name: Optional[str]

Script name that contains the Workflow. If not provided, defaults to this script name.

class BindingWorkersBindingKindWasmModule: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the WebAssembly module content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["wasm_module"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVPCService: …

name: str

A JavaScript variable name for the binding.

service_id: str

Identifier of the VPC service to bind to.

type: Literal["vpc_service"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVPCNetwork: …

name: str

A JavaScript variable name for the binding.

type: Literal["vpc_network"]

The kind of resource that the binding provides.

network_id: Optional[str]

Identifier of the network to bind to. Only “cf1:network” is currently supported. Mutually exclusive with tunnel_id.

tunnel_id: Optional[str]

UUID of the Cloudflare Tunnel to bind to. Mutually exclusive with network_id.

cache_options: Optional[CacheOptions]

Global CacheW configuration for the Worker. When caching is on, the platform provisions a cloudflare.app zone for the Worker. A type: worker entry in the exports map can override this value for a single entrypoint.

enabled: bool

Whether caching is enabled for this Worker.

cross_version_cache: Optional[bool]

Whether cached responses are shared across Worker version uploads. This is independent of enabled. It can stay true while caching is off, so the preference survives turning caching off and back on.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

exports: Optional[Dict[str, Exports]]

Declarative exports for the Worker. Worker entrypoint entries (type: worker) carry cache configuration for that entrypoint.

One of the following:

class ExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

exports_reconciliation: Optional[ExportsReconciliation]

Summary of the declarative exports reconciliation that ran on this upload. Populated only when the uploaded metadata included an exports block. Durable Object entries drive reconciliation; type: worker entries do not contribute to this summary.

created: List[str]

Class names for which a new namespace was provisioned.

deleted: List[str]

Class names whose namespace was deleted by a deleted tombstone.

info: List[ExportsReconciliationInfo]

Non-blocking info entries (stale tombstones, tombstone applied with class still in code). See exports_reconciliation_info.

class_: str

The class name the info entry is about.

message: str

Human-readable explanation.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the entry relates to, when applicable.

formatuuid

referencing_scripts: Optional[List[str]]

Other Workers in the account that still bind to the affected class. Advisory: while non-empty the tombstone is not yet safe to remove — redeploy these Workers with bindings re-pointed first.

removable_entries: List[str]

Source class names whose tombstone entry is now stale and safe to delete from exports (no remaining referencing scripts).

renamed: List[ExportsReconciliationRenamed]

Applied renamed tombstones.

from_: str

The original (source) class name.

to: str

The new class name (renamed_to).

transfer_pending: List[ExportsReconciliationTransferPending]

Phase-1 transfer hints recorded on the target side.

class_: str

The target-side class name awaiting transfer.

from_: str

The source script the namespace will be transferred from.

transferred: List[ExportsReconciliationTransferred]

Committed transferred tombstones (phase-2).

class_: str

The source class name that was transferred.

phase: Literal["committed"]

The transfer phase. Currently always committed.

to: str

The destination script that now owns the namespace.

updated: List[str]

Class names whose provisioned namespace was mutated in place.

warnings: List[ExportsReconciliationWarning]

Non-blocking warnings. See exports_reconciliation_warning.

class_: str

The class name the warning is about.

message: str

Human-readable explanation of the warning.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the warning relates to, when applicable.

formatuuid

limits: Optional[Limits]

Limits to apply for this Worker.

cpu_ms: Optional[int]

The amount of CPU time this Worker can use in milliseconds.

subrequests: Optional[int]

The number of subrequests this Worker can make per request.

logpush: Optional[bool]

Whether Logpush is turned on for the Worker.

migrations: Optional[Migrations]

Migrations to apply for Durable Objects associated with this Worker.

One of the following:

class SingleStepMigration: …

A single set of migrations to apply.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

class MigrationsWorkersMultipleStepMigrations: …

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

steps: Optional[List[MigrationStep]]

Migrations to apply in order.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

observability: Optional[Observability]

Observability settings for the Worker.

enabled: bool

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for incoming requests. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

enabled: bool

Whether logs are enabled for the Worker.

invocation_logs: bool

Whether invocation logs are enabled for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

placement: Optional[Placement]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

class PlacementMode: …

mode: Literal["smart"]

Enables Smart Placement.

class PlacementRegion: …

region: str

Cloud region for targeted placement in format ‘provider:region’.

class PlacementHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementHost: …

host: str

TCP host and port for targeted placement.

class PlacementUnionMember4: …

mode: Literal["targeted"]

Targeted placement mode.

region: str

Cloud region for targeted placement in format ‘provider:region’.

class PlacementUnionMember5: …

hostname: str

HTTP hostname for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

class PlacementUnionMember6: …

host: str

TCP host and port for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

class PlacementUnionMember7: …

mode: Literal["targeted"]

Targeted placement mode.

target: List[PlacementUnionMember7Target]

Array of placement targets (currently limited to single target).

One of the following:

class PlacementUnionMember7TargetRegion: …

region: str

Cloud region in format ‘provider:region’.

class PlacementUnionMember7TargetHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementUnionMember7TargetHost: …

host: str

TCP host:port for targeted placement.

tags: Optional[List[str]]

Tags associated with the Worker.

tail_consumers: Optional[List[ConsumerScript]]

List of Workers that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

usage_model: Optional[Literal["standard", "bundled", "unbound"]]

Usage model for the Worker invocations.

One of the following:

"standard"

"bundled"

"unbound"

class ScriptAndVersionSettingEditResponse: …

annotations: Optional[Annotations]

Annotations for the Worker version. Annotations are not inherited across settings updates; omitting this field means the new version will have no annotations.

workers_message: Optional[str]

Human-readable message about the version. Truncated to 1000 bytes if longer.

maxLength1000

workers_tag: Optional[str]

User-provided identifier for the version. Maximum 100 bytes.

maxLength100

workers_triggered_by: Optional[str]

Operation that triggered the creation of the version. This is read-only and set by the server.

bindings: Optional[List[Binding]]

List of bindings attached to a Worker. You can find more about bindings on our docs: https://developers.cloudflare.com/workers/configuration/multipart-upload-metadata/#bindings.

One of the following:

class BindingWorkersBindingKindAI: …

name: str

A JavaScript variable name for the binding.

type: Literal["ai"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAISearch: …

instance_name: str

The user-chosen instance name. Must exist at deploy time. The worker can search, chat, update, and manage items/jobs on this instance.

name: str

A JavaScript variable name for the binding.

type: Literal["ai_search"]

The kind of resource that the binding provides.

namespace: Optional[str]

The namespace the instance belongs to. Defaults to “default” if omitted. Customers who don’t use namespaces can simply omit this field.

class BindingWorkersBindingKindAISearchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The user-chosen namespace name. Must exist before deploy — Wrangler handles auto-creation on deploy failure (R2 bucket pattern). The “default” namespace is auto-created by config-api for new accounts. Grants full access (CRUD + search + chat) to all instances within the namespace.

type: Literal["ai_search_namespace"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMessaging: …

name: str

A JavaScript variable name for the binding.

namespace: str

The Messaging namespace to bind to.

type: Literal["messaging"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAnalyticsEngine: …

dataset: str

The name of the dataset to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["analytics_engine"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindAssets: …

name: str

A JavaScript variable name for the binding.

type: Literal["assets"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindBrowser: …

name: str

A JavaScript variable name for the binding.

type: Literal["browser"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindD1: …

database_id: str

Identifier of the D1 database to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["d1"]

The kind of resource that the binding provides.

Deprecatedid: Optional[str]

This property has been renamed to database_id.

Identifier of the D1 database to bind to.

class BindingWorkersBindingKindDataBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the data content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["data_blob"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindDispatchNamespace: …

name: str

A JavaScript variable name for the binding.

namespace: str

The name of the dispatch namespace.

type: Literal["dispatch_namespace"]

The kind of resource that the binding provides.

outbound: Optional[BindingWorkersBindingKindDispatchNamespaceOutbound]

Outbound worker.

params: Optional[List[BindingWorkersBindingKindDispatchNamespaceOutboundParam]]

Pass information from the Dispatch Worker to the Outbound Worker through the parameters.

name: str

Name of the parameter.

worker: Optional[BindingWorkersBindingKindDispatchNamespaceOutboundWorker]

Outbound worker.

entrypoint: Optional[str]

Entrypoint to invoke on the outbound worker.

environment: Optional[str]

Environment of the outbound worker.

service: Optional[str]

Name of the outbound worker.

class BindingWorkersBindingKindDurableObjectNamespace: …

name: str

A JavaScript variable name for the binding.

type: Literal["durable_object_namespace"]

The kind of resource that the binding provides.

class_name: Optional[str]

The exported class name of the Durable Object.

dispatch_namespace: Optional[str]

The dispatch namespace the Durable Object script belongs to.

environment: Optional[str]

The environment of the script_name to bind to.

namespace_id: Optional[str]

Namespace identifier tag.

maxLength32

script_name: Optional[str]

The script where the Durable Object is defined, if it is external to this Worker.

class BindingWorkersBindingKindHyperdrive: …

id: str

Identifier of the Hyperdrive connection to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["hyperdrive"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindInherit: …

name: str

The name of the inherited binding.

type: Literal["inherit"]

The kind of resource that the binding provides.

old_name: Optional[str]

The old name of the inherited binding. If set, the binding will be renamed from old_name to name in the new version. If not set, the binding will keep the same name between versions.

version_id: Optional[str]

Identifier for the version to inherit the binding from, which can be the version ID or the literal “latest” to inherit from the latest version. Defaults to inheriting the binding from the latest version.

class BindingWorkersBindingKindImages: …

name: str

A JavaScript variable name for the binding.

type: Literal["images"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindJson: …

json: object

JSON data to use.

name: str

A JavaScript variable name for the binding.

type: Literal["json"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindKVNamespace: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Namespace identifier tag.

maxLength32

type: Literal["kv_namespace"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMedia: …

name: str

A JavaScript variable name for the binding.

type: Literal["media"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindMTLSCertificate: …

certificate_id: str

Identifier of the certificate to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["mtls_certificate"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindPlainText: …

name: str

A JavaScript variable name for the binding.

text: str

The text value to use.

type: Literal["plain_text"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindPipelines: …

name: str

A JavaScript variable name for the binding.

pipeline: str

Name of the Pipeline to bind to.

type: Literal["pipelines"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindQueue: …

name: str

A JavaScript variable name for the binding.

queue_name: str

Name of the Queue to bind to.

type: Literal["queue"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindRatelimit: …

name: str

A JavaScript variable name for the binding.

namespace_id: str

Identifier of the rate limit namespace to bind to.

simple: BindingWorkersBindingKindRatelimitSimple

The rate limit configuration.

limit: float

The limit (requests per period).

period: int

The period in seconds.

mitigation_timeout: Optional[int]

Duration in seconds to apply the mitigation action after the rate limit is exceeded. Valid values are 0 (disabled), 10, or multiples of 60 up to 86400. Must be greater than or equal to the period when non-zero.

type: Literal["ratelimit"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindR2Bucket: …

bucket_name: str

R2 bucket to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["r2_bucket"]

The kind of resource that the binding provides.

jurisdiction: Optional[Literal["eu", "fedramp", "fedramp-high"]]

The jurisdiction of the R2 bucket.

One of the following:

"eu"

"fedramp"

"fedramp-high"

class BindingWorkersBindingKindSecretText: …

name: str

A JavaScript variable name for the binding.

text: str

The secret value to use.

type: Literal["secret_text"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSendEmail: …

name: str

A JavaScript variable name for the binding.

type: Literal["send_email"]

The kind of resource that the binding provides.

allowed_destination_addresses: Optional[List[str]]

List of allowed destination addresses.

allowed_sender_addresses: Optional[List[str]]

List of allowed sender addresses.

destination_address: Optional[str]

Destination address for the email.

formatemail

class BindingWorkersBindingKindService: …

name: str

A JavaScript variable name for the binding.

service: str

Name of Worker to bind to.

type: Literal["service"]

The kind of resource that the binding provides.

entrypoint: Optional[str]

Entrypoint to invoke on the target Worker.

environment: Optional[str]

Optional environment if the Worker utilizes one.

class BindingWorkersBindingKindTextBlob: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the text content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["text_blob"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVectorize: …

index_name: str

Name of the Vectorize index to bind to.

name: str

A JavaScript variable name for the binding.

type: Literal["vectorize"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVersionMetadata: …

name: str

A JavaScript variable name for the binding.

type: Literal["version_metadata"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSecretsStoreSecret: …

name: str

A JavaScript variable name for the binding.

secret_name: str

Name of the secret in the store.

store_id: str

ID of the store containing the secret.

type: Literal["secrets_store_secret"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindFlagship: …

app_id: str

ID of the Flagship app to bind to for feature flag evaluation.

maxLength128

name: str

A JavaScript variable name for the binding.

type: Literal["flagship"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindSecretKey: …

algorithm: object

Algorithm-specific key parameters. Learn more.

format: Literal["raw", "pkcs8", "spki", "jwk"]

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: str

A JavaScript variable name for the binding.

type: Literal["secret_key"]

The kind of resource that the binding provides.

usages: List[Literal["encrypt", "decrypt", "sign", 5 more]]

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64: Optional[str]

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk: Optional[object]

Key data in JSON Web Key format. Required if format is “jwk”.

class BindingWorkersBindingKindWorkflow: …

name: str

A JavaScript variable name for the binding.

type: Literal["workflow"]

The kind of resource that the binding provides.

workflow_name: str

Name of the Workflow to bind to.

class_name: Optional[str]

Class name of the Workflow. Should only be provided if the Workflow belongs to this script.

script_name: Optional[str]

Script name that contains the Workflow. If not provided, defaults to this script name.

class BindingWorkersBindingKindWasmModule: …

name: str

A JavaScript variable name for the binding.

part: str

The name of the file containing the WebAssembly module content. Only accepted for service worker syntax Workers.

Deprecatedtype: Literal["wasm_module"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVPCService: …

name: str

A JavaScript variable name for the binding.

service_id: str

Identifier of the VPC service to bind to.

type: Literal["vpc_service"]

The kind of resource that the binding provides.

class BindingWorkersBindingKindVPCNetwork: …

name: str

A JavaScript variable name for the binding.

type: Literal["vpc_network"]

The kind of resource that the binding provides.

network_id: Optional[str]

Identifier of the network to bind to. Only “cf1:network” is currently supported. Mutually exclusive with tunnel_id.

tunnel_id: Optional[str]

UUID of the Cloudflare Tunnel to bind to. Mutually exclusive with network_id.

cache_options: Optional[CacheOptions]

Global CacheW configuration for the Worker. When caching is on, the platform provisions a cloudflare.app zone for the Worker. A type: worker entry in the exports map can override this value for a single entrypoint.

enabled: bool

Whether caching is enabled for this Worker.

cross_version_cache: Optional[bool]

Whether cached responses are shared across Worker version uploads. This is independent of enabled. It can stay true while caching is off, so the preference survives turning caching off and back on.

compatibility_date: Optional[str]

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags: Optional[List[str]]

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

exports: Optional[Dict[str, Exports]]

Declarative exports for the Worker. Worker entrypoint entries (type: worker) carry cache configuration for that entrypoint.

One of the following:

class ExportsWorkersWorkerExport: …

A named Worker entrypoint export (type: worker). Worker entrypoints are always live (state: created) and carry no storage or lifecycle fields. The optional cache block overrides the Worker’s global cache_options.enabled for this entrypoint.

type: Literal["worker"]

Marks this entry as a Worker entrypoint export.

cache: Optional[ExportsWorkersWorkerExportCache]

Cache override for this entrypoint. Overrides the Worker’s global cache_options.enabled for this entrypoint only.

enabled: bool

Whether caching is enabled for this entrypoint.

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectExport: …

A live Durable Object export (state: created, the default). The platform auto-provisions the namespace on first deploy, matches it on subsequent deploys, and never mutates or deletes it as a side effect of a code-only change. storage is required; renamed_to, transferred_to and transfer_from are not allowed on a live entry.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object. When set, the namespace is container-enabled. Valid only on live entries.

maxLength128

state: Optional[Literal["created"]]

Live export. May be omitted; defaults to created.

class ExportsWorkersDurableObjectDeletedExport: …

A deleted tombstone: retires the provisioned namespace for this class and all of its data. The class must be absent from the uploaded code and no other Worker in the account may bind to the namespace, otherwise the deploy is rejected. No other fields are allowed. Deletion is irreversible.

state: Literal["deleted"]

Tombstone that deletes the namespace.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectRenamedExport: …

A renamed tombstone: rewrites the provisioned namespace’s class name from this map key to renamed_to. The source class may stay in code during the rollout window (an info notice is emitted). storage, transferred_to and transfer_from are not allowed.

renamed_to: str

The destination class name. Must differ from the source class (the map key) and must be declared as a live (created) entry in the same exports map. Write-only: never present in GET responses.

maxLength128

state: Literal["renamed"]

Tombstone that renames the namespace’s class.

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectTransferredExport: …

A transferred tombstone (source side of a two-phase transfer): hands ownership of the provisioned namespace to another script in the same account, named by transferred_to. The target must have already deployed a matching expecting-transfer entry. The source class may stay in code during the rollout window (an info notice is emitted). storage, renamed_to and transfer_from are not allowed.

state: Literal["transferred"]

Tombstone that transfers the namespace to another script.

transferred_to: str

The destination script name. Must be in the same account and the same dispatch-namespace context (or both non-dispatch). Cross-dispatch-namespace transfers are rejected. Write-only: never present in GET responses.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

class ExportsWorkersDurableObjectExpectingTransferExport: …

The target side of a two-phase transfer (state: expecting-transfer). Declares that this script expects to receive a namespace for this class from the transfer_from script. This is a live entry, not a tombstone: bindings resolve through the source’s namespace until the source commits with a transferred tombstone. storage and transfer_from are required; renamed_to and transferred_to are not allowed.

state: Literal["expecting-transfer"]

Target side of a two-phase transfer.

storage: Literal["sqlite", "legacy-kv"]

Durable Object storage backend. sqlite is the recommended (and only) backend for new namespaces. legacy-kv is accepted only for a class whose namespace already exists as KV-backed; the exports flow never provisions a new legacy-kv namespace.

One of the following:

"sqlite"

"legacy-kv"

transfer_from: str

The source script name to receive the namespace from. Must be in the same account and dispatch-namespace context. Present on reads for expecting-transfer entries.

maxLength128

type: Literal["durable-object"]

Marks this entry as a Durable Object export.

container: Optional[str]

Name of the container (declared in the upload’s metadata.containers) that backs this Durable Object once the transfer settles. Valid only on live entries.

maxLength128

exports_reconciliation: Optional[ExportsReconciliation]

Summary of the declarative exports reconciliation that ran on this upload. Populated only when the uploaded metadata included an exports block. Durable Object entries drive reconciliation; type: worker entries do not contribute to this summary.

created: List[str]

Class names for which a new namespace was provisioned.

deleted: List[str]

Class names whose namespace was deleted by a deleted tombstone.

info: List[ExportsReconciliationInfo]

Non-blocking info entries (stale tombstones, tombstone applied with class still in code). See exports_reconciliation_info.

class_: str

The class name the info entry is about.

message: str

Human-readable explanation.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the entry relates to, when applicable.

formatuuid

referencing_scripts: Optional[List[str]]

Other Workers in the account that still bind to the affected class. Advisory: while non-empty the tombstone is not yet safe to remove — redeploy these Workers with bindings re-pointed first.

removable_entries: List[str]

Source class names whose tombstone entry is now stale and safe to delete from exports (no remaining referencing scripts).

renamed: List[ExportsReconciliationRenamed]

Applied renamed tombstones.

from_: str

The original (source) class name.

to: str

The new class name (renamed_to).

transfer_pending: List[ExportsReconciliationTransferPending]

Phase-1 transfer hints recorded on the target side.

class_: str

The target-side class name awaiting transfer.

from_: str

The source script the namespace will be transferred from.

transferred: List[ExportsReconciliationTransferred]

Committed transferred tombstones (phase-2).

class_: str

The source class name that was transferred.

phase: Literal["committed"]

The transfer phase. Currently always committed.

to: str

The destination script that now owns the namespace.

updated: List[str]

Class names whose provisioned namespace was mutated in place.

warnings: List[ExportsReconciliationWarning]

Non-blocking warnings. See exports_reconciliation_warning.

class_: str

The class name the warning is about.

message: str

Human-readable explanation of the warning.

scenario: Literal["code_class_not_in_exports", "provisioned_class_missing_from_config", "config_export_not_in_code", 30 more]

Stable, machine-readable tag identifying which reconciliation scenario produced an error, warning, or info entry. Clients may branch on this value instead of parsing message.

One of the following:

"code_class_not_in_exports"

"provisioned_class_missing_from_config"

"config_export_not_in_code"

"config_references_nonexistent_class"

"orphaned_provisioned_namespace"

"storage_type_mismatch"

"free_tier_requires_sqlite"

"invalid_export"

"tombstone_delete_class_still_in_code"

"tombstone_delete_blocked_by_external_bindings"

"tombstone_renamed_to_occupied"

"transferred_pending_not_found"

"transferred_target_missing"

"transferred_target_mismatch"

"phase_one_transfer_source_missing"

"phase_one_transfer_source_namespace_missing"

"phase_one_transfer_target_class_provisioned"

"phase_one_transfer_after_commit_mismatch"

"phase_one_transfer_duplicate"

"phase_one_transfer_target_in_dispatch_namespace"

"phase_one_transfer_source_in_dispatch_namespace"

"transferred_source_in_dispatch_namespace"

"transferred_target_in_dispatch_namespace"

"container_undeclared_reference"

"container_class_not_durable_object"

"container_wiring_inconsistent"

"container_multiple_durable_objects"

"transfer_container_parity_mismatch"

"transfer_container_parity_mismatch_on_commit"

"tombstone_class_still_in_code"

"stale_tombstone"

"transfer_receive_already_applied"

"transfer_receive_cleanup_complete"

namespace_id: Optional[str]

The provisioned namespace the warning relates to, when applicable.

formatuuid

limits: Optional[Limits]

Limits to apply for this Worker.

cpu_ms: Optional[int]

The amount of CPU time this Worker can use in milliseconds.

subrequests: Optional[int]

The number of subrequests this Worker can make per request.

logpush: Optional[bool]

Whether Logpush is turned on for the Worker.

migrations: Optional[Migrations]

Migrations to apply for Durable Objects associated with this Worker.

One of the following:

class SingleStepMigration: …

A single set of migrations to apply.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

class MigrationsWorkersMultipleStepMigrations: …

new_tag: Optional[str]

Tag to set as the latest migration tag.

old_tag: Optional[str]

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

steps: Optional[List[MigrationStep]]

Migrations to apply in order.

deleted_classes: Optional[List[str]]

A list of classes to delete Durable Object namespaces from.

new_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces from.

new_sqlite_classes: Optional[List[str]]

A list of classes to create Durable Object namespaces with SQLite from.

renamed_classes: Optional[List[RenamedClass]]

A list of classes with Durable Object namespaces that were renamed.

from_: Optional[str]

to: Optional[str]

transferred_classes: Optional[List[TransferredClass]]

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from_: Optional[str]

from_script: Optional[str]

to: Optional[str]

observability: Optional[Observability]

Observability settings for the Worker.

enabled: bool

Whether observability is enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for incoming requests. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

logs: Optional[ObservabilityLogs]

Log settings for the Worker.

enabled: bool

Whether logs are enabled for the Worker.

invocation_logs: bool

Whether invocation logs are enabled for the Worker.

destinations: Optional[List[str]]

A list of destinations where logs will be exported to.

head_sampling_rate: Optional[float]

The sampling rate for logs. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether log persistence is enabled for the Worker.

traces: Optional[ObservabilityTraces]

Trace settings for the Worker.

destinations: Optional[List[str]]

A list of destinations where traces will be exported to.

enabled: Optional[bool]

Whether traces are enabled for the Worker.

head_sampling_rate: Optional[float]

The sampling rate for traces. From 0 to 1 (1 = 100%, 0.1 = 10%). Default is 1.

persist: Optional[bool]

Whether trace persistence is enabled for the Worker.

propagation_policy: Optional[Literal["authenticated", "accept"]]

Controls how inbound trace context (traceparent/tracestate) headers on incoming requests are handled. “authenticated” (default) honors inbound trace context only when accompanied by a valid trace auth token. “accept” unconditionally accepts inbound trace context. Requires the trace propagation feature to be enabled.

One of the following:

"authenticated"

"accept"

placement: Optional[Placement]

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

class PlacementMode: …

mode: Literal["smart"]

Enables Smart Placement.

class PlacementRegion: …

region: str

Cloud region for targeted placement in format ‘provider:region’.

class PlacementHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementHost: …

host: str

TCP host and port for targeted placement.

class PlacementUnionMember4: …

mode: Literal["targeted"]

Targeted placement mode.

region: str

Cloud region for targeted placement in format ‘provider:region’.

class PlacementUnionMember5: …

hostname: str

HTTP hostname for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

class PlacementUnionMember6: …

host: str

TCP host and port for targeted placement.

mode: Literal["targeted"]

Targeted placement mode.

class PlacementUnionMember7: …

mode: Literal["targeted"]

Targeted placement mode.

target: List[PlacementUnionMember7Target]

Array of placement targets (currently limited to single target).

One of the following:

class PlacementUnionMember7TargetRegion: …

region: str

Cloud region in format ‘provider:region’.

class PlacementUnionMember7TargetHostname: …

hostname: str

HTTP hostname for targeted placement.

class PlacementUnionMember7TargetHost: …

host: str

TCP host:port for targeted placement.

tags: Optional[List[str]]

Tags associated with the Worker.

tail_consumers: Optional[List[ConsumerScript]]

List of Workers that will consume logs from the attached Worker.

service: str

Name of Worker that is to be the consumer.

environment: Optional[str]

Optional environment if the Worker utilizes one.

namespace: Optional[str]

Optional dispatch namespace the script belongs to.

usage_model: Optional[Literal["standard", "bundled", "unbound"]]

Usage model for the Worker invocations.

One of the following:

"standard"

"bundled"

"unbound"

WorkersAccount Settings

Fetch Worker Account Settings

workers.account_settings.get(AccountSettingGetParams**kwargs) -> AccountSettingGetResponse

GET/accounts/{account_id}/workers/account-settings

Create Worker Account Settings

workers.account_settings.update(AccountSettingUpdateParams**kwargs) -> AccountSettingUpdateResponse

PUT/accounts/{account_id}/workers/account-settings

ModelsExpand Collapse

class AccountSettingGetResponse: …

default_usage_model: Optional[str]

green_compute: Optional[bool]

class AccountSettingUpdateResponse: …

default_usage_model: Optional[str]

green_compute: Optional[bool]

WorkersDomains

List Domains

workers.domains.list(DomainListParams**kwargs) -> SyncSinglePage[DomainListResponse]

GET/accounts/{account_id}/workers/domains

Get Domain

workers.domains.get(strdomain_id, DomainGetParams**kwargs) -> DomainGetResponse

GET/accounts/{account_id}/workers/domains/{domain_id}

Attach Domain

workers.domains.update(DomainUpdateParams**kwargs) -> DomainUpdateResponse

PUT/accounts/{account_id}/workers/domains

Detach Domain

workers.domains.delete(strdomain_id, DomainDeleteParams**kwargs) -> DomainDeleteResponse

DELETE/accounts/{account_id}/workers/domains/{domain_id}

ModelsExpand Collapse

class DomainListResponse: …

id: str

Immutable ID of the domain.

cert_id: str

ID of the TLS certificate issued for the domain.

formatuuid

hostname: str

Hostname of the domain. Can be either the zone apex or a subdomain of the zone. Requests to this hostname will be routed to the configured Worker.

service: str

Name of the Worker associated with the domain. Requests to the configured hostname will be routed to this Worker.

zone_id: str

ID of the zone containing the domain hostname.

zone_name: str

Name of the zone containing the domain hostname.

Deprecatedenvironment: Optional[str]

Worker environment associated with the domain.

class DomainGetResponse: …

id: str

Immutable ID of the domain.

cert_id: str

ID of the TLS certificate issued for the domain.

formatuuid

hostname: str

Hostname of the domain. Can be either the zone apex or a subdomain of the zone. Requests to this hostname will be routed to the configured Worker.

service: str

Name of the Worker associated with the domain. Requests to the configured hostname will be routed to this Worker.

zone_id: str

ID of the zone containing the domain hostname.

zone_name: str

Name of the zone containing the domain hostname.

Deprecatedenvironment: Optional[str]

Worker environment associated with the domain.

class DomainUpdateResponse: …

id: str

Immutable ID of the domain.

cert_id: str

ID of the TLS certificate issued for the domain.

formatuuid

hostname: str

Hostname of the domain. Can be either the zone apex or a subdomain of the zone. Requests to this hostname will be routed to the configured Worker.

service: str

Name of the Worker associated with the domain. Requests to the configured hostname will be routed to this Worker.

zone_id: str

ID of the zone containing the domain hostname.

zone_name: str

Name of the zone containing the domain hostname.

Deprecatedenvironment: Optional[str]

Worker environment associated with the domain.

class DomainDeleteResponse: …

errors: List[Error]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[ErrorSource]

pointer: Optional[str]

messages: List[Message]

code: int

minimum1000

message: str

documentation_url: Optional[str]

source: Optional[MessageSource]

pointer: Optional[str]

success: Literal[true]

Whether the API call was successful.

WorkersSubdomains

Get Subdomain

workers.subdomains.get(SubdomainGetParams**kwargs) -> SubdomainGetResponse

GET/accounts/{account_id}/workers/subdomain

Create Subdomain

workers.subdomains.update(SubdomainUpdateParams**kwargs) -> SubdomainUpdateResponse

PUT/accounts/{account_id}/workers/subdomain

Delete Subdomain

workers.subdomains.delete(SubdomainDeleteParams**kwargs)

DELETE/accounts/{account_id}/workers/subdomain

ModelsExpand Collapse

class SubdomainGetResponse: …

subdomain: str

class SubdomainUpdateResponse: …

subdomain: str

WorkersObservability

WorkersObservabilityTelemetry

List keys

workers.observability.telemetry.keys(TelemetryKeysParams**kwargs) -> SyncSinglePage[TelemetryKeysResponse]

POST/accounts/{account_id}/workers/observability/telemetry/keys

Run a query

workers.observability.telemetry.query(TelemetryQueryParams**kwargs) -> TelemetryQueryResponse

POST/accounts/{account_id}/workers/observability/telemetry/query

List values

workers.observability.telemetry.values(TelemetryValuesParams**kwargs) -> SyncSinglePage[TelemetryValuesResponse]

POST/accounts/{account_id}/workers/observability/telemetry/values

Prepare live tail

workers.observability.telemetry.live_tail(TelemetryLiveTailParams**kwargs) -> TelemetryLiveTailResponse

POST/accounts/{account_id}/workers/observability/telemetry/live-tail

Live tail heartbeat

workers.observability.telemetry.live_tail_heartbeat(TelemetryLiveTailHeartbeatParams**kwargs) -> object

POST/accounts/{account_id}/workers/observability/telemetry/live-tail/heartbeat

ModelsExpand Collapse

class TelemetryKeysResponse: …

key: str

last_seen_at: float

type: Literal["string", "boolean", "number"]

One of the following:

"string"

"boolean"

"number"

class TelemetryQueryResponse: …

Complete results of a query run. The populated fields depend on the requested view type (events, calculations, invocations, traces, or agents).

run: Run

Represents a single execution of a query against Workers Observability data, including the query definition, execution status, and performance statistics.

id: str

Unique identifier for this query run.

account_id: str

Cloudflare account ID that owns this query run.

dry: bool

Whether this was a dry run (results not persisted).

granularity: float

Number of time-series buckets used for the query. Higher values produce more detailed series data.

query: RunQuery

A saved query definition with its parameters, metadata, and ownership information.

id: str

adhoc: bool

If the query wasn’t explcitly saved

created: str

created_by: str

description: Optional[str]

maxLength1000

name: str

Query name

maxLength250

minLength1

parameters: RunQueryParameters

calculations: Optional[List[RunQueryParametersCalculation]]

Create Calculations to compute as part of the query.

One of the following:

class RunQueryParametersCalculationUnionMember0: …

operator: Literal["count", "COUNT"]

One of the following:

"count"

"COUNT"

alias: Optional[str]

key: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

class RunQueryParametersCalculationUnionMember1: …

key: str

operator: Literal["uniq", "max", "min", 33 more]

One of the following:

"uniq"

"max"

"min"

"sum"

"avg"

"median"

"p001"

"p01"

"p05"

"p10"

"p25"

"p75"

"p90"

"p95"

"p99"

"p999"

"stddev"

"variance"

"COUNT_DISTINCT"

"MAX"

"MIN"

"SUM"

"AVG"

"MEDIAN"

"P001"

"P01"

"P05"

"P10"

"P25"

"P75"

"P90"

"P95"

"P99"

"P999"

"STDDEV"

"VARIANCE"

alias: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

datasets: Optional[List[str]]

Set the Datasets to query. Leave it empty to query all the datasets.

filter_combination: Optional[Literal["and", "or", "AND", "OR"]]

Set a Flag to describe how to combine the filters on the query.

One of the following:

"and"

"or"

"AND"

"OR"

filters: Optional[List[RunQueryParametersFilter]]

Configure the Filters to apply to the query. Supports nested groups via kind: ‘group’.

One of the following:

class RunQueryParametersFilterUnionMember0: …

filter_combination: Literal["and", "or", "AND", "OR"]

One of the following:

"and"

"or"

"AND"

"OR"

filters: List[object]

kind: Literal["group"]

class RunQueryParametersFilterWorkersObservabilityFilterLeaf: …

A filter condition applied to query results. Use the keys and values endpoints to discover available fields and their values before constructing filters.

key: str

Filter field name. Use verified keys from previous query results or the keys endpoint. Common keys include $metadata.service, $metadata.origin, $metadata.trigger, $metadata.message, and $metadata.error.

operation: Literal["includes", "not_includes", "starts_with", 27 more]

Comparison operator. String operators: includes, not_includes, starts_with, ends_with, regex. Existence: exists, is_null. Set membership: in, not_in (comma-separated values). Numeric: eq, neq, gt, gte, lt, lte.

One of the following:

"includes"

"not_includes"

"starts_with"

"ends_with"

"regex"

"exists"

"is_null"

"in"

"not_in"

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

"="

"!="

">"

">="

"<"

"<="

"INCLUDES"

"DOES_NOT_INCLUDE"

"MATCH_REGEX"

"EXISTS"

"DOES_NOT_EXIST"

"IN"

"NOT_IN"

"STARTS_WITH"

"ENDS_WITH"

type: Literal["string", "number", "boolean"]

Data type of the filter field. Must match the actual type of the key being filtered.

One of the following:

"string"

"number"

"boolean"

kind: Optional[Literal["filter"]]

Discriminator for leaf filter nodes. Always ‘filter’ when present; may be omitted.

value: Optional[Union[str, float, bool, null]]

Comparison value. Must match actual values in your data — verify with the values endpoint. Ensure the value type (string/number/boolean) matches the field type. String comparisons are case-sensitive. Regex uses RE2 syntax (no lookaheads/lookbehinds).

One of the following:

str

float

bool

group_bys: Optional[List[RunQueryParametersGroupBy]]

Define how to group the results of the query.

type: Literal["string", "number", "boolean"]

One of the following:

"string"

"number"

"boolean"

value: str

havings: Optional[List[RunQueryParametersHaving]]

Configure the Having clauses that filter on calculations in the query result.

key: str

operation: Literal["eq", "neq", "gt", 3 more]

One of the following:

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

value: float

limit: Optional[int]

Set a limit on the number of results / records returned by the query

maximum100

minimum0

needle: Optional[RunQueryParametersNeedle]

Define an expression to search using full-text search.

value: RunQueryParametersNeedleValue

is_regex: Optional[bool]

match_case: Optional[bool]

order_by: Optional[RunQueryParametersOrderBy]

Configure the order of the results returned by the query.

value: str

Configure which Calculation to order the results by.

order: Optional[Literal["asc", "desc"]]

Set the order of the results

One of the following:

"asc"

"desc"

updated: str

updated_by: str

status: Literal["STARTED", "COMPLETED"]

Current execution status of the query run.

One of the following:

"STARTED"

"COMPLETED"

timeframe: RunTimeframe

Time range for the query execution

from_: float

Start timestamp for the query timeframe (Unix timestamp in milliseconds)

to: float

End timestamp for the query timeframe (Unix timestamp in milliseconds)

user_id: str

ID of the user who initiated the query run.

created: Optional[str]

ISO-8601 timestamp when the query run was created.

statistics: Optional[RunStatistics]

Query performance statistics from the database (does not include network latency).

bytes_read: float

Number of uncompressed bytes read from the table.

elapsed: float

Time in seconds for the query to run.

rows_read: float

Number of rows scanned from the table.

abr_level: Optional[float]

The level of Adaptive Bit Rate (ABR) sampling used for the query. If empty the ABR level is 1

updated: Optional[str]

ISO-8601 timestamp when the query run was last updated.

statistics: Statistics

Query performance statistics from the database. Includes execution time, rows scanned, and bytes read. Does not include network latency.

bytes_read: float

Number of uncompressed bytes read from the table.

elapsed: float

Time in seconds for the query to run.

rows_read: float

Number of rows scanned from the table.

abr_level: Optional[float]

The level of Adaptive Bit Rate (ABR) sampling used for the query. If empty the ABR level is 1

agents: Optional[List[Agent]]

Agent run summaries. Present when the query view is ‘agents’. Each entry represents one trace containing at least one agent invocation.

id: str

Pagination cursor derived from the first agent invocation in the run.

errors: List[str]

Distinct errors reported by spans in the run.

models: List[str]

Distinct models reported by chat spans across the run’s trace.

providers: List[str]

Distinct GenAI providers reported by chat spans in the run.

services: List[str]

Worker services represented in the run’s trace.

spans: float

Number of spans in the run’s trace.

status: Literal["completed", "error"]

Observed run status.

One of the following:

"completed"

"error"

trace_duration_ms: float

Total trace duration in milliseconds.

trace_end_ms: float

End of the run’s trace as a Unix epoch in milliseconds.

trace_id: str

Trace identifier for this agent run.

trace_start_ms: float

Start of the run’s trace as a Unix epoch in milliseconds.

agent_id: Optional[str]

ID from the earliest agent invocation that provides one.

agent_name: Optional[str]

Name from the earliest agent invocation that provides one.

conversation_id: Optional[str]

Conversation ID from the earliest invocation that provides one.

input_tokens: Optional[float]

Input tokens summed across chat spans in the run’s trace; informational, not billing data.

output_tokens: Optional[float]

Output tokens summed across chat spans in the run’s trace; informational, not billing data.

calculations: Optional[List[Calculation]]

Aggregated calculation results. Present when the query view is ‘calculations’. Contains computed metrics (count, avg, p99, etc.) with optional group-by breakdowns and time-series data.

aggregates: List[CalculationAggregate]

count: float

interval: float

sample_interval: float

value: float

groups: Optional[List[CalculationAggregateGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

calculation: str

series: List[CalculationSeries]

data: List[CalculationSeriesData]

count: float

interval: float

sample_interval: float

value: float

first_seen: Optional[str]

groups: Optional[List[CalculationSeriesDataGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

last_seen: Optional[str]

time: str

alias: Optional[str]

compare: Optional[List[Compare]]

Comparison calculation results from the previous time period. Present when the compare option is enabled. Same structure as calculations.

aggregates: List[CompareAggregate]

count: float

interval: float

sample_interval: float

value: float

groups: Optional[List[CompareAggregateGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

calculation: str

series: List[CompareSeries]

data: List[CompareSeriesData]

count: float

interval: float

sample_interval: float

value: float

first_seen: Optional[str]

groups: Optional[List[CompareSeriesDataGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

last_seen: Optional[str]

time: str

alias: Optional[str]

distribution: Optional[Distribution]

Bucketed 2D histogram of a numeric field over time. Present when chartType is ‘distribution’.

bins: List[str]

Time-bucket labels (ISO-8601 strings), one per matrix column.

bucket_boundaries: List[float]

Raw bucket edges in the value’s native unit, length buckets.length + 1. Used for the colour scale and percentile mapping.

bucket_mode: Literal["log", "linear"]

Bucketing scheme used to derive the boundaries. ‘log’ produces geometric edges; ‘linear’ produces fixed-width edges.

One of the following:

"log"

"linear"

buckets: List[str]

Value-range labels, one per matrix row (e.g. ‘50–100ms’).

matrix: List[List[float]]

Sampling-corrected counts. matrix[bucketIdx][binIdx] is the estimated number of events in value-bucket ‘bucketIdx’ during time-bin ‘binIdx’.

events: Optional[Events]

Individual event results. Present when the query view is ‘events’. Contains the matching log lines and their metadata.

count: Optional[float]

Total number of events matching the query (may exceed the number returned due to limits).

events: Optional[List[EventsEvent]]

List of individual telemetry events matching the query.

metadata: EventsEventMetadata

Structured metadata extracted from the event. These fields are indexed and available for filtering and aggregation.

id: str

Unique event ID. Use as the cursor value for offset-based pagination.

account: Optional[str]

Cloudflare account identifier.

cloud_service: Optional[str]

Cloudflare product that generated this event (e.g. workers, pages).

cold_start: Optional[int]

exclusiveMinimum

minimum0

cost: Optional[int]

Estimated cost units for this invocation.

exclusiveMinimum

minimum0

duration: Optional[int]

Span duration in milliseconds.

exclusiveMinimum

minimum0

end_time: Optional[int]

Span end time as a Unix epoch in milliseconds.

minimum0

error: Optional[str]

Error message, present when the log represents an error.

error_template: Optional[str]

Templatized version of the error message used for grouping similar errors.

fingerprint: Optional[str]

Content-based fingerprint used to group similar events.

level: Optional[str]

Log level (e.g. log, debug, info, warn, error).

message: Optional[str]

Log message text.

message_template: Optional[str]

Templatized version of the log message used for grouping similar messages.

metric_name: Optional[str]

Metric name when the event represents a metric data point.

origin: Optional[str]

Origin of the event (e.g. fetch, scheduled, queue).

parent_span_id: Optional[str]

Span ID of the parent span in the trace hierarchy.

provider: Optional[str]

Infrastructure provider identifier.

rayid: Optional[str]

Cloudflare Ray ID from the cf-ray header of the request that triggered the invocation.

region: Optional[str]

Cloudflare data center / region that handled the request.

request_id: Optional[str]

Cloudflare request ID that ties all logs from a single invocation together.

service: Optional[str]

Worker script name that produced this event.

span_id: Optional[str]

Span ID for this individual unit of work within a trace.

span_name: Optional[str]

Human-readable name for this span.

stack_id: Optional[str]

Stack / deployment identifier.

start_time: Optional[int]

Span start time as a Unix epoch in milliseconds.

minimum0

status_code: Optional[int]

HTTP response status code returned by the Worker.

exclusiveMinimum

minimum0

trace_duration: Optional[int]

Total duration of the entire trace in milliseconds.

exclusiveMinimum

minimum0

trace_id: Optional[str]

Distributed trace ID linking spans across services.

transaction_name: Optional[str]

Logical transaction name for this request.

trigger: Optional[str]

What triggered the invocation (e.g. GET /users, POST /orders, queue message).

type: Optional[str]

Event type classifier (e.g. cf-worker-event, cf-worker-log).

url: Optional[str]

Request URL that triggered the Worker invocation.

dataset: str

The dataset this event belongs to (e.g. cloudflare-workers).

source: Union[str, Dict[str, object]]

Raw log payload. May be a string or a structured object depending on how the log was emitted.

One of the following:

str

Dict[str, object]

timestamp: int

Event timestamp as a Unix epoch in milliseconds.

minimum0

containers: Optional[Dict[str, object]]

Cloudflare Containers event information that enriches your logs for identifying and debugging issues.

workers: Optional[EventsEventWorkers]

Cloudflare Workers event information that enriches your logs for identifying and debugging issues.

One of the following:

class EventsEventWorkersUnionMember0: …

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

request_id: str

script_name: str

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

outcome: Optional[str]

preview: Optional[EventsEventWorkersUnionMember0Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[EventsEventWorkersUnionMember0ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

class EventsEventWorkersUnionMember1: …

cpu_time_ms: float

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

outcome: str

request_id: str

script_name: str

wall_time_ms: float

diagnostics_channel_events: Optional[List[EventsEventWorkersUnionMember1DiagnosticsChannelEvent]]

channel: str

message: str

timestamp: float

dispatch_namespace: Optional[str]

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

preview: Optional[EventsEventWorkersUnionMember1Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[EventsEventWorkersUnionMember1ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

fields: Optional[List[EventsField]]

List of fields discovered in the matched events. Useful for building dynamic UIs.

key: str

Field name present in the matched events.

type: str

Data type of the field (string, number, or boolean).

series: Optional[List[EventsSeries]]

Time-series data for the matched events, bucketed by the query granularity.

data: List[EventsSeriesData]

aggregates: EventsSeriesDataAggregates

Deprecated_count: int

exclusiveMinimum

minimum0

Deprecated_interval: float

exclusiveMinimum

minimum0

Deprecated_first_seen: Optional[str]

Deprecated_last_seen: Optional[str]

Deprecatedbin: Optional[object]

count: float

interval: float

sample_interval: float

errors: Optional[float]

groups: Optional[Dict[str, Union[str, float, bool]]]

Groups in the query results.

One of the following:

str

float

bool

time: str

invocations: Optional[Dict[str, List[Invocation]]]

Events grouped by invocation (request ID). Present when the query view is ‘invocations’. Each key is a request ID mapping to all events from that invocation.

metadata: InvocationMetadata

Structured metadata extracted from the event. These fields are indexed and available for filtering and aggregation.

id: str

Unique event ID. Use as the cursor value for offset-based pagination.

account: Optional[str]

Cloudflare account identifier.

cloud_service: Optional[str]

Cloudflare product that generated this event (e.g. workers, pages).

cold_start: Optional[int]

exclusiveMinimum

minimum0

cost: Optional[int]

Estimated cost units for this invocation.

exclusiveMinimum

minimum0

duration: Optional[int]

Span duration in milliseconds.

exclusiveMinimum

minimum0

end_time: Optional[int]

Span end time as a Unix epoch in milliseconds.

minimum0

error: Optional[str]

Error message, present when the log represents an error.

error_template: Optional[str]

Templatized version of the error message used for grouping similar errors.

fingerprint: Optional[str]

Content-based fingerprint used to group similar events.

level: Optional[str]

Log level (e.g. log, debug, info, warn, error).

message: Optional[str]

Log message text.

message_template: Optional[str]

Templatized version of the log message used for grouping similar messages.

metric_name: Optional[str]

Metric name when the event represents a metric data point.

origin: Optional[str]

Origin of the event (e.g. fetch, scheduled, queue).

parent_span_id: Optional[str]

Span ID of the parent span in the trace hierarchy.

provider: Optional[str]

Infrastructure provider identifier.

rayid: Optional[str]

Cloudflare Ray ID from the cf-ray header of the request that triggered the invocation.

region: Optional[str]

Cloudflare data center / region that handled the request.

request_id: Optional[str]

Cloudflare request ID that ties all logs from a single invocation together.

service: Optional[str]

Worker script name that produced this event.

span_id: Optional[str]

Span ID for this individual unit of work within a trace.

span_name: Optional[str]

Human-readable name for this span.

stack_id: Optional[str]

Stack / deployment identifier.

start_time: Optional[int]

Span start time as a Unix epoch in milliseconds.

minimum0

status_code: Optional[int]

HTTP response status code returned by the Worker.

exclusiveMinimum

minimum0

trace_duration: Optional[int]

Total duration of the entire trace in milliseconds.

exclusiveMinimum

minimum0

trace_id: Optional[str]

Distributed trace ID linking spans across services.

transaction_name: Optional[str]

Logical transaction name for this request.

trigger: Optional[str]

What triggered the invocation (e.g. GET /users, POST /orders, queue message).

type: Optional[str]

Event type classifier (e.g. cf-worker-event, cf-worker-log).

url: Optional[str]

Request URL that triggered the Worker invocation.

dataset: str

The dataset this event belongs to (e.g. cloudflare-workers).

source: Union[str, Dict[str, object]]

Raw log payload. May be a string or a structured object depending on how the log was emitted.

One of the following:

str

Dict[str, object]

timestamp: int

Event timestamp as a Unix epoch in milliseconds.

minimum0

containers: Optional[Dict[str, object]]

Cloudflare Containers event information that enriches your logs for identifying and debugging issues.

workers: Optional[InvocationWorkers]

Cloudflare Workers event information that enriches your logs for identifying and debugging issues.

One of the following:

class InvocationWorkersUnionMember0: …

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

request_id: str

script_name: str

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

outcome: Optional[str]

preview: Optional[InvocationWorkersUnionMember0Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[InvocationWorkersUnionMember0ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

class InvocationWorkersUnionMember1: …

cpu_time_ms: float

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

outcome: str

request_id: str

script_name: str

wall_time_ms: float

diagnostics_channel_events: Optional[List[InvocationWorkersUnionMember1DiagnosticsChannelEvent]]

channel: str

message: str

timestamp: float

dispatch_namespace: Optional[str]

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

preview: Optional[InvocationWorkersUnionMember1Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[InvocationWorkersUnionMember1ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

traces: Optional[List[Trace]]

Trace summaries matching the query. Present when the query view is ‘traces’. Each entry represents a distributed trace with its spans, duration, and services involved.

root_span_name: str

Name of the root span that initiated the trace.

root_transaction_name: str

Logical transaction name for the root span.

service: List[str]

List of Worker services involved in the trace.

spans: float

Total number of spans in the trace.

trace_duration_ms: float

Total duration of the trace in milliseconds.

trace_end_ms: float

Trace end time as a Unix epoch in milliseconds.

trace_id: str

Unique identifier for the distributed trace.

trace_start_ms: float

Trace start time as a Unix epoch in milliseconds.

errors: Optional[List[str]]

Error messages encountered during the trace, if any.

class TelemetryValuesResponse: …

dataset: str

key: str

type: Literal["string", "boolean", "number"]

One of the following:

"string"

"boolean"

"number"

value: Union[str, float, bool]

One of the following:

str

float

bool

class TelemetryLiveTailResponse: …

ws_url: str

WebSocket URL clients connect to in order to stream live tail events.

formaturi

WorkersObservabilityDestinations

Get Destinations

workers.observability.destinations.list(DestinationListParams**kwargs) -> SyncSinglePage[DestinationListResponse]

GET/accounts/{account_id}/workers/observability/destinations

Create Destination

workers.observability.destinations.create(DestinationCreateParams**kwargs) -> DestinationCreateResponse

POST/accounts/{account_id}/workers/observability/destinations

Update Destination

workers.observability.destinations.update(strslug, DestinationUpdateParams**kwargs) -> DestinationUpdateResponse

PATCH/accounts/{account_id}/workers/observability/destinations/{slug}

Delete Destination

workers.observability.destinations.delete(strslug, DestinationDeleteParams**kwargs) -> DestinationDeleteResponse

DELETE/accounts/{account_id}/workers/observability/destinations/{slug}

ModelsExpand Collapse

class DestinationListResponse: …

configuration: Configuration

destination_conf: str

headers: Dict[str, str]

job_status: ConfigurationJobStatus

error_message: str

last_complete: str

last_error: str

logpush_dataset: Literal["opentelemetry-traces", "opentelemetry-logs", "opentelemetry-metrics"]

One of the following:

"opentelemetry-traces"

"opentelemetry-logs"

"opentelemetry-metrics"

type: Literal["logpush"]

url: str

enabled: bool

name: str

scripts: List[str]

slug: str

class DestinationCreateResponse: …

configuration: Configuration

destination_conf: str

logpush_dataset: Literal["opentelemetry-traces", "opentelemetry-logs", "opentelemetry-metrics"]

One of the following:

"opentelemetry-traces"

"opentelemetry-logs"

"opentelemetry-metrics"

logpush_job: float

type: Literal["logpush"]

url: str

enabled: bool

name: str

scripts: List[str]

slug: str

class DestinationUpdateResponse: …

configuration: Configuration

destination_conf: str

logpush_dataset: Literal["opentelemetry-traces", "opentelemetry-logs", "opentelemetry-metrics"]

One of the following:

"opentelemetry-traces"

"opentelemetry-logs"

"opentelemetry-metrics"

logpush_job: float

type: Literal["logpush"]

url: str

enabled: bool

name: str

scripts: List[str]

slug: str

class DestinationDeleteResponse: …

configuration: Configuration

destination_conf: str

logpush_dataset: Literal["opentelemetry-traces", "opentelemetry-logs", "opentelemetry-metrics"]

One of the following:

"opentelemetry-traces"

"opentelemetry-logs"

"opentelemetry-metrics"

logpush_job: float

type: Literal["logpush"]

url: str

enabled: bool

name: str

scripts: List[str]

slug: str

WorkersObservabilityQueries

Save query

workers.observability.queries.create(QueryCreateParams**kwargs) -> QueryCreateResponse

POST/accounts/{account_id}/workers/observability/queries

List queries

workers.observability.queries.list(QueryListParams**kwargs) -> SyncSinglePage[QueryListResponse]

GET/accounts/{account_id}/workers/observability/queries

ModelsExpand Collapse

class QueryCreateResponse: …

id: str

adhoc: bool

If the query wasn’t explcitly saved

created: str

created_by: str

description: Optional[str]

maxLength1000

name: str

Query name

maxLength250

minLength1

parameters: Parameters

calculations: Optional[List[ParametersCalculation]]

Create Calculations to compute as part of the query.

One of the following:

class ParametersCalculationUnionMember0: …

operator: Literal["count", "COUNT"]

One of the following:

"count"

"COUNT"

alias: Optional[str]

key: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

class ParametersCalculationUnionMember1: …

key: str

operator: Literal["uniq", "max", "min", 33 more]

One of the following:

"uniq"

"max"

"min"

"sum"

"avg"

"median"

"p001"

"p01"

"p05"

"p10"

"p25"

"p75"

"p90"

"p95"

"p99"

"p999"

"stddev"

"variance"

"COUNT_DISTINCT"

"MAX"

"MIN"

"SUM"

"AVG"

"MEDIAN"

"P001"

"P01"

"P05"

"P10"

"P25"

"P75"

"P90"

"P95"

"P99"

"P999"

"STDDEV"

"VARIANCE"

alias: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

datasets: Optional[List[str]]

Set the Datasets to query. Leave it empty to query all the datasets.

filter_combination: Optional[Literal["and", "or", "AND", "OR"]]

Set a Flag to describe how to combine the filters on the query.

One of the following:

"and"

"or"

"AND"

"OR"

filters: Optional[List[ParametersFilter]]

Configure the Filters to apply to the query. Supports nested groups via kind: ‘group’.

One of the following:

class ParametersFilterUnionMember0: …

filter_combination: Literal["and", "or", "AND", "OR"]

One of the following:

"and"

"or"

"AND"

"OR"

filters: List[object]

kind: Literal["group"]

class ParametersFilterWorkersObservabilityFilterLeaf: …

A filter condition applied to query results. Use the keys and values endpoints to discover available fields and their values before constructing filters.

key: str

Filter field name. Use verified keys from previous query results or the keys endpoint. Common keys include $metadata.service, $metadata.origin, $metadata.trigger, $metadata.message, and $metadata.error.

operation: Literal["includes", "not_includes", "starts_with", 27 more]

Comparison operator. String operators: includes, not_includes, starts_with, ends_with, regex. Existence: exists, is_null. Set membership: in, not_in (comma-separated values). Numeric: eq, neq, gt, gte, lt, lte.

One of the following:

"includes"

"not_includes"

"starts_with"

"ends_with"

"regex"

"exists"

"is_null"

"in"

"not_in"

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

"="

"!="

">"

">="

"<"

"<="

"INCLUDES"

"DOES_NOT_INCLUDE"

"MATCH_REGEX"

"EXISTS"

"DOES_NOT_EXIST"

"IN"

"NOT_IN"

"STARTS_WITH"

"ENDS_WITH"

type: Literal["string", "number", "boolean"]

Data type of the filter field. Must match the actual type of the key being filtered.

One of the following:

"string"

"number"

"boolean"

kind: Optional[Literal["filter"]]

Discriminator for leaf filter nodes. Always ‘filter’ when present; may be omitted.

value: Optional[Union[str, float, bool, null]]

Comparison value. Must match actual values in your data — verify with the values endpoint. Ensure the value type (string/number/boolean) matches the field type. String comparisons are case-sensitive. Regex uses RE2 syntax (no lookaheads/lookbehinds).

One of the following:

str

float

bool

group_bys: Optional[List[ParametersGroupBy]]

Define how to group the results of the query.

type: Literal["string", "number", "boolean"]

One of the following:

"string"

"number"

"boolean"

value: str

havings: Optional[List[ParametersHaving]]

Configure the Having clauses that filter on calculations in the query result.

key: str

operation: Literal["eq", "neq", "gt", 3 more]

One of the following:

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

value: float

limit: Optional[int]

Set a limit on the number of results / records returned by the query

maximum100

minimum0

needle: Optional[ParametersNeedle]

Define an expression to search using full-text search.

value: Union[str, float, bool]

maxLength1000

One of the following:

str

float

bool

is_regex: Optional[bool]

match_case: Optional[bool]

order_by: Optional[ParametersOrderBy]

Configure the order of the results returned by the query.

value: str

Configure which Calculation to order the results by.

order: Optional[Literal["asc", "desc"]]

Set the order of the results

One of the following:

"asc"

"desc"

updated: str

updated_by: str

class QueryListResponse: …

id: str

adhoc: bool

If the query wasn’t explcitly saved

created: str

created_by: str

description: Optional[str]

maxLength1000

name: str

Query name

maxLength250

minLength1

parameters: Parameters

calculations: Optional[List[ParametersCalculation]]

Create Calculations to compute as part of the query.

One of the following:

class ParametersCalculationUnionMember0: …

operator: Literal["count", "COUNT"]

One of the following:

"count"

"COUNT"

alias: Optional[str]

key: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

class ParametersCalculationUnionMember1: …

key: str

operator: Literal["uniq", "max", "min", 33 more]

One of the following:

"uniq"

"max"

"min"

"sum"

"avg"

"median"

"p001"

"p01"

"p05"

"p10"

"p25"

"p75"

"p90"

"p95"

"p99"

"p999"

"stddev"

"variance"

"COUNT_DISTINCT"

"MAX"

"MIN"

"SUM"

"AVG"

"MEDIAN"

"P001"

"P01"

"P05"

"P10"

"P25"

"P75"

"P90"

"P95"

"P99"

"P999"

"STDDEV"

"VARIANCE"

alias: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

datasets: Optional[List[str]]

Set the Datasets to query. Leave it empty to query all the datasets.

filter_combination: Optional[Literal["and", "or", "AND", "OR"]]

Set a Flag to describe how to combine the filters on the query.

One of the following:

"and"

"or"

"AND"

"OR"

filters: Optional[List[ParametersFilter]]

Configure the Filters to apply to the query. Supports nested groups via kind: ‘group’.

One of the following:

class ParametersFilterUnionMember0: …

filter_combination: Literal["and", "or", "AND", "OR"]

One of the following:

"and"

"or"

"AND"

"OR"

filters: List[object]

kind: Literal["group"]

class ParametersFilterWorkersObservabilityFilterLeaf: …

A filter condition applied to query results. Use the keys and values endpoints to discover available fields and their values before constructing filters.

key: str

Filter field name. Use verified keys from previous query results or the keys endpoint. Common keys include $metadata.service, $metadata.origin, $metadata.trigger, $metadata.message, and $metadata.error.

operation: Literal["includes", "not_includes", "starts_with", 27 more]

Comparison operator. String operators: includes, not_includes, starts_with, ends_with, regex. Existence: exists, is_null. Set membership: in, not_in (comma-separated values). Numeric: eq, neq, gt, gte, lt, lte.

One of the following:

"includes"

"not_includes"

"starts_with"

"ends_with"

"regex"

"exists"

"is_null"

"in"

"not_in"

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

"="

"!="

">"

">="

"<"

"<="

"INCLUDES"

"DOES_NOT_INCLUDE"

"MATCH_REGEX"

"EXISTS"

"DOES_NOT_EXIST"

"IN"

"NOT_IN"

"STARTS_WITH"

"ENDS_WITH"

type: Literal["string", "number", "boolean"]

Data type of the filter field. Must match the actual type of the key being filtered.

One of the following:

"string"

"number"

"boolean"

kind: Optional[Literal["filter"]]

Discriminator for leaf filter nodes. Always ‘filter’ when present; may be omitted.

value: Optional[Union[str, float, bool, null]]

Comparison value. Must match actual values in your data — verify with the values endpoint. Ensure the value type (string/number/boolean) matches the field type. String comparisons are case-sensitive. Regex uses RE2 syntax (no lookaheads/lookbehinds).

One of the following:

str

float

bool

group_bys: Optional[List[ParametersGroupBy]]

Define how to group the results of the query.

type: Literal["string", "number", "boolean"]

One of the following:

"string"

"number"

"boolean"

value: str

havings: Optional[List[ParametersHaving]]

Configure the Having clauses that filter on calculations in the query result.

key: str

operation: Literal["eq", "neq", "gt", 3 more]

One of the following:

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

value: float

limit: Optional[int]

Set a limit on the number of results / records returned by the query

maximum100

minimum0

needle: Optional[ParametersNeedle]

Define an expression to search using full-text search.

value: Union[str, float, bool]

maxLength1000

One of the following:

str

float

bool

is_regex: Optional[bool]

match_case: Optional[bool]

order_by: Optional[ParametersOrderBy]

Configure the order of the results returned by the query.

value: str

Configure which Calculation to order the results by.

order: Optional[Literal["asc", "desc"]]

Set the order of the results

One of the following:

"asc"

"desc"

updated: str

updated_by: str

WorkersObservabilityShared Queries

Create a sharable link to a query result

workers.observability.shared_queries.create(SharedQueryCreateParams**kwargs) -> SharedQueryCreateResponse

POST/accounts/{account_id}/workers/observability/shared/query

View a query that has been shared

workers.observability.shared_queries.get(strid, SharedQueryGetParams**kwargs) -> SharedQueryGetResponse

GET/accounts/{account_id}/workers/observability/shared/query/{id}

ModelsExpand Collapse

class SharedQueryCreateResponse: …

id: str

Specify the ID of the shared query.

class SharedQueryGetResponse: …

Complete results of a query run. The populated fields depend on the requested view type (events, calculations, invocations, traces, or agents).

run: Run

Represents a single execution of a query against Workers Observability data, including the query definition, execution status, and performance statistics.

id: str

Unique identifier for this query run.

account_id: str

Cloudflare account ID that owns this query run.

dry: bool

Whether this was a dry run (results not persisted).

granularity: float

Number of time-series buckets used for the query. Higher values produce more detailed series data.

query: RunQuery

A saved query definition with its parameters, metadata, and ownership information.

id: str

adhoc: bool

If the query wasn’t explcitly saved

created: str

created_by: str

description: Optional[str]

maxLength1000

name: str

Query name

maxLength250

minLength1

parameters: RunQueryParameters

calculations: Optional[List[RunQueryParametersCalculation]]

Create Calculations to compute as part of the query.

One of the following:

class RunQueryParametersCalculationUnionMember0: …

operator: Literal["count", "COUNT"]

One of the following:

"count"

"COUNT"

alias: Optional[str]

key: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

class RunQueryParametersCalculationUnionMember1: …

key: str

operator: Literal["uniq", "max", "min", 33 more]

One of the following:

"uniq"

"max"

"min"

"sum"

"avg"

"median"

"p001"

"p01"

"p05"

"p10"

"p25"

"p75"

"p90"

"p95"

"p99"

"p999"

"stddev"

"variance"

"COUNT_DISTINCT"

"MAX"

"MIN"

"SUM"

"AVG"

"MEDIAN"

"P001"

"P01"

"P05"

"P10"

"P25"

"P75"

"P90"

"P95"

"P99"

"P999"

"STDDEV"

"VARIANCE"

alias: Optional[str]

key_type: Optional[Literal["string", "number", "boolean"]]

One of the following:

"string"

"number"

"boolean"

datasets: Optional[List[str]]

Set the Datasets to query. Leave it empty to query all the datasets.

filter_combination: Optional[Literal["and", "or", "AND", "OR"]]

Set a Flag to describe how to combine the filters on the query.

One of the following:

"and"

"or"

"AND"

"OR"

filters: Optional[List[RunQueryParametersFilter]]

Configure the Filters to apply to the query. Supports nested groups via kind: ‘group’.

One of the following:

class RunQueryParametersFilterUnionMember0: …

filter_combination: Literal["and", "or", "AND", "OR"]

One of the following:

"and"

"or"

"AND"

"OR"

filters: List[object]

kind: Literal["group"]

class RunQueryParametersFilterWorkersObservabilityFilterLeaf: …

A filter condition applied to query results. Use the keys and values endpoints to discover available fields and their values before constructing filters.

key: str

Filter field name. Use verified keys from previous query results or the keys endpoint. Common keys include $metadata.service, $metadata.origin, $metadata.trigger, $metadata.message, and $metadata.error.

operation: Literal["includes", "not_includes", "starts_with", 27 more]

Comparison operator. String operators: includes, not_includes, starts_with, ends_with, regex. Existence: exists, is_null. Set membership: in, not_in (comma-separated values). Numeric: eq, neq, gt, gte, lt, lte.

One of the following:

"includes"

"not_includes"

"starts_with"

"ends_with"

"regex"

"exists"

"is_null"

"in"

"not_in"

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

"="

"!="

">"

">="

"<"

"<="

"INCLUDES"

"DOES_NOT_INCLUDE"

"MATCH_REGEX"

"EXISTS"

"DOES_NOT_EXIST"

"IN"

"NOT_IN"

"STARTS_WITH"

"ENDS_WITH"

type: Literal["string", "number", "boolean"]

Data type of the filter field. Must match the actual type of the key being filtered.

One of the following:

"string"

"number"

"boolean"

kind: Optional[Literal["filter"]]

Discriminator for leaf filter nodes. Always ‘filter’ when present; may be omitted.

value: Optional[Union[str, float, bool, null]]

Comparison value. Must match actual values in your data — verify with the values endpoint. Ensure the value type (string/number/boolean) matches the field type. String comparisons are case-sensitive. Regex uses RE2 syntax (no lookaheads/lookbehinds).

One of the following:

str

float

bool

group_bys: Optional[List[RunQueryParametersGroupBy]]

Define how to group the results of the query.

type: Literal["string", "number", "boolean"]

One of the following:

"string"

"number"

"boolean"

value: str

havings: Optional[List[RunQueryParametersHaving]]

Configure the Having clauses that filter on calculations in the query result.

key: str

operation: Literal["eq", "neq", "gt", 3 more]

One of the following:

"eq"

"neq"

"gt"

"gte"

"lt"

"lte"

value: float

limit: Optional[int]

Set a limit on the number of results / records returned by the query

maximum100

minimum0

needle: Optional[RunQueryParametersNeedle]

Define an expression to search using full-text search.

value: RunQueryParametersNeedleValue

is_regex: Optional[bool]

match_case: Optional[bool]

order_by: Optional[RunQueryParametersOrderBy]

Configure the order of the results returned by the query.

value: str

Configure which Calculation to order the results by.

order: Optional[Literal["asc", "desc"]]

Set the order of the results

One of the following:

"asc"

"desc"

updated: str

updated_by: str

status: Literal["STARTED", "COMPLETED"]

Current execution status of the query run.

One of the following:

"STARTED"

"COMPLETED"

timeframe: RunTimeframe

Time range for the query execution

from_: float

Start timestamp for the query timeframe (Unix timestamp in milliseconds)

to: float

End timestamp for the query timeframe (Unix timestamp in milliseconds)

user_id: str

ID of the user who initiated the query run.

created: Optional[str]

ISO-8601 timestamp when the query run was created.

statistics: Optional[RunStatistics]

Query performance statistics from the database (does not include network latency).

bytes_read: float

Number of uncompressed bytes read from the table.

elapsed: float

Time in seconds for the query to run.

rows_read: float

Number of rows scanned from the table.

abr_level: Optional[float]

The level of Adaptive Bit Rate (ABR) sampling used for the query. If empty the ABR level is 1

updated: Optional[str]

ISO-8601 timestamp when the query run was last updated.

statistics: Statistics

Query performance statistics from the database. Includes execution time, rows scanned, and bytes read. Does not include network latency.

bytes_read: float

Number of uncompressed bytes read from the table.

elapsed: float

Time in seconds for the query to run.

rows_read: float

Number of rows scanned from the table.

abr_level: Optional[float]

The level of Adaptive Bit Rate (ABR) sampling used for the query. If empty the ABR level is 1

agents: Optional[List[Agent]]

Agent run summaries. Present when the query view is ‘agents’. Each entry represents one trace containing at least one agent invocation.

id: str

Pagination cursor derived from the first agent invocation in the run.

errors: List[str]

Distinct errors reported by spans in the run.

models: List[str]

Distinct models reported by chat spans across the run’s trace.

providers: List[str]

Distinct GenAI providers reported by chat spans in the run.

services: List[str]

Worker services represented in the run’s trace.

spans: float

Number of spans in the run’s trace.

status: Literal["completed", "error"]

Observed run status.

One of the following:

"completed"

"error"

trace_duration_ms: float

Total trace duration in milliseconds.

trace_end_ms: float

End of the run’s trace as a Unix epoch in milliseconds.

trace_id: str

Trace identifier for this agent run.

trace_start_ms: float

Start of the run’s trace as a Unix epoch in milliseconds.

agent_id: Optional[str]

ID from the earliest agent invocation that provides one.

agent_name: Optional[str]

Name from the earliest agent invocation that provides one.

conversation_id: Optional[str]

Conversation ID from the earliest invocation that provides one.

input_tokens: Optional[float]

Input tokens summed across chat spans in the run’s trace; informational, not billing data.

output_tokens: Optional[float]

Output tokens summed across chat spans in the run’s trace; informational, not billing data.

calculations: Optional[List[Calculation]]

Aggregated calculation results. Present when the query view is ‘calculations’. Contains computed metrics (count, avg, p99, etc.) with optional group-by breakdowns and time-series data.

aggregates: List[CalculationAggregate]

count: float

interval: float

sample_interval: float

value: float

groups: Optional[List[CalculationAggregateGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

calculation: str

series: List[CalculationSeries]

data: List[CalculationSeriesData]

count: float

interval: float

sample_interval: float

value: float

first_seen: Optional[str]

groups: Optional[List[CalculationSeriesDataGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

last_seen: Optional[str]

time: str

alias: Optional[str]

compare: Optional[List[Compare]]

Comparison calculation results from the previous time period. Present when the compare option is enabled. Same structure as calculations.

aggregates: List[CompareAggregate]

count: float

interval: float

sample_interval: float

value: float

groups: Optional[List[CompareAggregateGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

calculation: str

series: List[CompareSeries]

data: List[CompareSeriesData]

count: float

interval: float

sample_interval: float

value: float

first_seen: Optional[str]

groups: Optional[List[CompareSeriesDataGroup]]

key: str

value: Union[str, float, bool]

One of the following:

str

float

bool

last_seen: Optional[str]

time: str

alias: Optional[str]

distribution: Optional[Distribution]

Bucketed 2D histogram of a numeric field over time. Present when chartType is ‘distribution’.

bins: List[str]

Time-bucket labels (ISO-8601 strings), one per matrix column.

bucket_boundaries: List[float]

Raw bucket edges in the value’s native unit, length buckets.length + 1. Used for the colour scale and percentile mapping.

bucket_mode: Literal["log", "linear"]

Bucketing scheme used to derive the boundaries. ‘log’ produces geometric edges; ‘linear’ produces fixed-width edges.

One of the following:

"log"

"linear"

buckets: List[str]

Value-range labels, one per matrix row (e.g. ‘50–100ms’).

matrix: List[List[float]]

Sampling-corrected counts. matrix[bucketIdx][binIdx] is the estimated number of events in value-bucket ‘bucketIdx’ during time-bin ‘binIdx’.

events: Optional[Events]

Individual event results. Present when the query view is ‘events’. Contains the matching log lines and their metadata.

count: Optional[float]

Total number of events matching the query (may exceed the number returned due to limits).

events: Optional[List[EventsEvent]]

List of individual telemetry events matching the query.

metadata: EventsEventMetadata

Structured metadata extracted from the event. These fields are indexed and available for filtering and aggregation.

id: str

Unique event ID. Use as the cursor value for offset-based pagination.

account: Optional[str]

Cloudflare account identifier.

cloud_service: Optional[str]

Cloudflare product that generated this event (e.g. workers, pages).

cold_start: Optional[int]

exclusiveMinimum

minimum0

cost: Optional[int]

Estimated cost units for this invocation.

exclusiveMinimum

minimum0

duration: Optional[int]

Span duration in milliseconds.

exclusiveMinimum

minimum0

end_time: Optional[int]

Span end time as a Unix epoch in milliseconds.

minimum0

error: Optional[str]

Error message, present when the log represents an error.

error_template: Optional[str]

Templatized version of the error message used for grouping similar errors.

fingerprint: Optional[str]

Content-based fingerprint used to group similar events.

level: Optional[str]

Log level (e.g. log, debug, info, warn, error).

message: Optional[str]

Log message text.

message_template: Optional[str]

Templatized version of the log message used for grouping similar messages.

metric_name: Optional[str]

Metric name when the event represents a metric data point.

origin: Optional[str]

Origin of the event (e.g. fetch, scheduled, queue).

parent_span_id: Optional[str]

Span ID of the parent span in the trace hierarchy.

provider: Optional[str]

Infrastructure provider identifier.

rayid: Optional[str]

Cloudflare Ray ID from the cf-ray header of the request that triggered the invocation.

region: Optional[str]

Cloudflare data center / region that handled the request.

request_id: Optional[str]

Cloudflare request ID that ties all logs from a single invocation together.

service: Optional[str]

Worker script name that produced this event.

span_id: Optional[str]

Span ID for this individual unit of work within a trace.

span_name: Optional[str]

Human-readable name for this span.

stack_id: Optional[str]

Stack / deployment identifier.

start_time: Optional[int]

Span start time as a Unix epoch in milliseconds.

minimum0

status_code: Optional[int]

HTTP response status code returned by the Worker.

exclusiveMinimum

minimum0

trace_duration: Optional[int]

Total duration of the entire trace in milliseconds.

exclusiveMinimum

minimum0

trace_id: Optional[str]

Distributed trace ID linking spans across services.

transaction_name: Optional[str]

Logical transaction name for this request.

trigger: Optional[str]

What triggered the invocation (e.g. GET /users, POST /orders, queue message).

type: Optional[str]

Event type classifier (e.g. cf-worker-event, cf-worker-log).

url: Optional[str]

Request URL that triggered the Worker invocation.

dataset: str

The dataset this event belongs to (e.g. cloudflare-workers).

source: Union[str, Dict[str, object]]

Raw log payload. May be a string or a structured object depending on how the log was emitted.

One of the following:

str

Dict[str, object]

timestamp: int

Event timestamp as a Unix epoch in milliseconds.

minimum0

containers: Optional[Dict[str, object]]

Cloudflare Containers event information that enriches your logs for identifying and debugging issues.

workers: Optional[EventsEventWorkers]

Cloudflare Workers event information that enriches your logs for identifying and debugging issues.

One of the following:

class EventsEventWorkersUnionMember0: …

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

request_id: str

script_name: str

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

outcome: Optional[str]

preview: Optional[EventsEventWorkersUnionMember0Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[EventsEventWorkersUnionMember0ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

class EventsEventWorkersUnionMember1: …

cpu_time_ms: float

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

outcome: str

request_id: str

script_name: str

wall_time_ms: float

diagnostics_channel_events: Optional[List[EventsEventWorkersUnionMember1DiagnosticsChannelEvent]]

channel: str

message: str

timestamp: float

dispatch_namespace: Optional[str]

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

preview: Optional[EventsEventWorkersUnionMember1Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[EventsEventWorkersUnionMember1ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

fields: Optional[List[EventsField]]

List of fields discovered in the matched events. Useful for building dynamic UIs.

key: str

Field name present in the matched events.

type: str

Data type of the field (string, number, or boolean).

series: Optional[List[EventsSeries]]

Time-series data for the matched events, bucketed by the query granularity.

data: List[EventsSeriesData]

aggregates: EventsSeriesDataAggregates

Deprecated_count: int

exclusiveMinimum

minimum0

Deprecated_interval: float

exclusiveMinimum

minimum0

Deprecated_first_seen: Optional[str]

Deprecated_last_seen: Optional[str]

Deprecatedbin: Optional[object]

count: float

interval: float

sample_interval: float

errors: Optional[float]

groups: Optional[Dict[str, Union[str, float, bool]]]

Groups in the query results.

One of the following:

str

float

bool

time: str

invocations: Optional[Dict[str, List[Invocation]]]

Events grouped by invocation (request ID). Present when the query view is ‘invocations’. Each key is a request ID mapping to all events from that invocation.

metadata: InvocationMetadata

Structured metadata extracted from the event. These fields are indexed and available for filtering and aggregation.

id: str

Unique event ID. Use as the cursor value for offset-based pagination.

account: Optional[str]

Cloudflare account identifier.

cloud_service: Optional[str]

Cloudflare product that generated this event (e.g. workers, pages).

cold_start: Optional[int]

exclusiveMinimum

minimum0

cost: Optional[int]

Estimated cost units for this invocation.

exclusiveMinimum

minimum0

duration: Optional[int]

Span duration in milliseconds.

exclusiveMinimum

minimum0

end_time: Optional[int]

Span end time as a Unix epoch in milliseconds.

minimum0

error: Optional[str]

Error message, present when the log represents an error.

error_template: Optional[str]

Templatized version of the error message used for grouping similar errors.

fingerprint: Optional[str]

Content-based fingerprint used to group similar events.

level: Optional[str]

Log level (e.g. log, debug, info, warn, error).

message: Optional[str]

Log message text.

message_template: Optional[str]

Templatized version of the log message used for grouping similar messages.

metric_name: Optional[str]

Metric name when the event represents a metric data point.

origin: Optional[str]

Origin of the event (e.g. fetch, scheduled, queue).

parent_span_id: Optional[str]

Span ID of the parent span in the trace hierarchy.

provider: Optional[str]

Infrastructure provider identifier.

rayid: Optional[str]

Cloudflare Ray ID from the cf-ray header of the request that triggered the invocation.

region: Optional[str]

Cloudflare data center / region that handled the request.

request_id: Optional[str]

Cloudflare request ID that ties all logs from a single invocation together.

service: Optional[str]

Worker script name that produced this event.

span_id: Optional[str]

Span ID for this individual unit of work within a trace.

span_name: Optional[str]

Human-readable name for this span.

stack_id: Optional[str]

Stack / deployment identifier.

start_time: Optional[int]

Span start time as a Unix epoch in milliseconds.

minimum0

status_code: Optional[int]

HTTP response status code returned by the Worker.

exclusiveMinimum

minimum0

trace_duration: Optional[int]

Total duration of the entire trace in milliseconds.

exclusiveMinimum

minimum0

trace_id: Optional[str]

Distributed trace ID linking spans across services.

transaction_name: Optional[str]

Logical transaction name for this request.

trigger: Optional[str]

What triggered the invocation (e.g. GET /users, POST /orders, queue message).

type: Optional[str]

Event type classifier (e.g. cf-worker-event, cf-worker-log).

url: Optional[str]

Request URL that triggered the Worker invocation.

dataset: str

The dataset this event belongs to (e.g. cloudflare-workers).

source: Union[str, Dict[str, object]]

Raw log payload. May be a string or a structured object depending on how the log was emitted.

One of the following:

str

Dict[str, object]

timestamp: int

Event timestamp as a Unix epoch in milliseconds.

minimum0

containers: Optional[Dict[str, object]]

Cloudflare Containers event information that enriches your logs for identifying and debugging issues.

workers: Optional[InvocationWorkers]

Cloudflare Workers event information that enriches your logs for identifying and debugging issues.

One of the following:

class InvocationWorkersUnionMember0: …

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

request_id: str

script_name: str

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

outcome: Optional[str]

preview: Optional[InvocationWorkersUnionMember0Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[InvocationWorkersUnionMember0ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

class InvocationWorkersUnionMember1: …

cpu_time_ms: float

event_type: Literal["fetch", "scheduled", "alarm", 9 more]

One of the following:

"fetch"

"scheduled"

"alarm"

"cron"

"queue"

"email"

"tail"

"rpc"

"jsrpc"

"websocket"

"workflow"

"unknown"

outcome: str

request_id: str

script_name: str

wall_time_ms: float

diagnostics_channel_events: Optional[List[InvocationWorkersUnionMember1DiagnosticsChannelEvent]]

channel: str

message: str

timestamp: float

dispatch_namespace: Optional[str]

durable_object_id: Optional[str]

entrypoint: Optional[str]

event: Optional[Dict[str, object]]

execution_model: Optional[Literal["durableObject", "stateless"]]

One of the following:

"durableObject"

"stateless"

preview: Optional[InvocationWorkersUnionMember1Preview]

id: Optional[str]

name: Optional[str]

slug: Optional[str]

script_version: Optional[InvocationWorkersUnionMember1ScriptVersion]

id: Optional[str]

message: Optional[str]

tag: Optional[str]

span_id: Optional[str]

trace_id: Optional[str]

truncated: Optional[bool]

traces: Optional[List[Trace]]

Trace summaries matching the query. Present when the query view is ‘traces’. Each entry represents a distributed trace with its spans, duration, and services involved.

root_span_name: str

Name of the root span that initiated the trace.

root_transaction_name: str

Logical transaction name for the root span.

service: List[str]

List of Worker services involved in the trace.

spans: float

Total number of spans in the trace.

trace_duration_ms: float

Total duration of the trace in milliseconds.

trace_end_ms: float

Trace end time as a Unix epoch in milliseconds.

trace_id: str

Unique identifier for the distributed trace.

trace_start_ms: float

Trace start time as a Unix epoch in milliseconds.

errors: Optional[List[str]]

Error messages encountered during the trace, if any.