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API Reference
Billing
Spend Policies

Update Spend Policy

PUT/accounts/{account_id}/billing/spend-policies/{policy_id}

Replaces the whole spend policy. Every field is required, as on create; there are no partial updates and PATCH is not supported. The If-Match header must equal the policy’s current version. On success, version goes up by one and the new value is returned in ETag.

Security
API Token

The preferred authorization scheme for interacting with the Cloudflare API. Create a token.

Example:Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY
API Email + API Key

The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

Example:X-Auth-Email: user@example.com

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

Example:X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194
Path ParametersExpand Collapse
account_id: string

Represents a Cloudflare resource identifier tag.

maxLength32
policy_id: string

The unique identifier of the spend policy.

formatuuid
Header ParametersExpand Collapse
"If-Match": string
Body ParametersJSONExpand Collapse
action: "notification" or "usage_block"

The action taken when the threshold is reached. notification sends an email to notification_email. usage_block blocks further usage of the product until the end of the billing period. Raising the threshold above the current balance, disabling the policy, or deleting it lifts the block early.

One of the following:
"notification"
"usage_block"
enabled: boolean

Whether the policy is evaluated.

name: string

Display name of the policy. After surrounding whitespace is trimmed, it must be 1 to 200 bytes long. The value is stored as sent, untrimmed.

minLength1
product_id: "workers" or "durable_objects"

The product the policy applies to: workers or durable_objects. Each product’s balance and policies are separate. Both products support notification and usage_block policies on create and update.

One of the following:
"workers"
"durable_objects"
threshold_cents: number

The spend threshold for the current billing period, in US cents. Must be greater than zero.

formatint64
minimum1
notification_email: optional string

Email address that receives notifications. Required when action is notification. When set, it must be a bare address (user@example.com); display-name forms such as Name <user@example.com> are rejected.

formatemail
ReturnsExpand Collapse
errors: array of object { message, code }

Always empty on success.

message: string

Describes the error or notice.

code: optional number

Identifies the error or notice type.

messages: array of object { message, code }

Contains informational notices about the response.

message: string

Describes the error or notice.

code: optional number

Identifies the error or notice type.

result: object { id, account_id, action, 7 more }

A spend policy.

id: string

The unique identifier of the spend policy.

formatuuid
account_id: number

Internal numeric ID of the account that owns the policy. This is not the account tag used in the path.

formatint64
action: "notification" or "usage_block"

The action taken when the threshold is reached. notification sends an email to notification_email. usage_block blocks further usage of the product until the end of the billing period. Raising the threshold above the current balance, disabling the policy, or deleting it lifts the block early.

One of the following:
"notification"
"usage_block"
enabled: boolean

Whether the policy is evaluated.

name: string

Display name of the policy.

notification_email: string

Email address that receives notifications. An empty string when none is set.

product_id: "workers" or "durable_objects"

The product the policy applies to: workers or durable_objects. Each product’s balance and policies are separate. Both products support notification and usage_block policies on create and update.

One of the following:
"workers"
"durable_objects"
threshold_cents: number

The spend threshold for the current billing period, in US cents.

formatint64
version: number

Optimistic-concurrency version. It starts at 1 and goes up by one on every update or delete. This value is also returned in ETag.

formatint64
minimum1
current_state: optional object { balance_cents, billing_period_end, billing_period_start, 3 more }

Read-only state on list/get responses, evaluated from the latest owning projector snapshot at request time, independently of the API replica. Configuration enabled/version/ETag do not change when a cycle rolls over. Audit history remains unchanged. Missing during a rolling upgrade or on mutation responses; clients must treat missing state as unavailable. Balances are asynchronous estimates, not a synchronous usage read.

balance_cents: number
formatint64
billing_period_end: string
formatdate-time
billing_period_start: string
formatdate-time
enforcement: object { applied_generation, delivery_status, desired_generation, 2 more }

Durable desired cap and delivery bookkeeping for this policy, or null if no owned effect exists. Separate from threshold evaluation: pending/leased/retry can lag the new billing period. Succeeded with equal generations means delivery completed, not an EWC readback.

applied_generation: number
formatint64
delivery_status: "pending" or "leased" or "retry" or "succeeded"
One of the following:
"pending"
"leased"
"retry"
"succeeded"
desired_generation: number
formatint64
desired_state: "active" or "inactive"
One of the following:
"active"
"inactive"
expires_at: string
formatdate-time
evaluated_at: string

Evaluation time; not the timestamp of the latest usage event.

formatdate-time
status: "disabled" or "no_current_period" or "unavailable" or 3 more

Threshold evaluation, not proof of an edge cap. No current active period yields no_current_period for enabled policies; failed aggregate reads yield unavailable for enabled policies. Disabled policies report disabled. Neither no_current_period nor unavailable implies a zero balance or below-limit state. Operators may disable current-state reads, in which case current_state is omitted.

One of the following:
"disabled"
"no_current_period"
"unavailable"
"below_limit"
"approaching_limit"
"limit_reached"
success: true

Indicates whether the API call was successful.

Update Spend Policy

curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/billing/spend-policies/$POLICY_ID \
    -X PUT \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
    -d '{
          "action": "notification",
          "enabled": true,
          "name": "Workers cap",
          "product_id": "workers",
          "threshold_cents": 100,
          "notification_email": "billing@example.com"
        }'
{
  "errors": [
    {
      "message": "message",
      "code": 0
    }
  ],
  "messages": [
    {
      "message": "message",
      "code": 0
    }
  ],
  "result": {
    "id": "6f1c2b8e-3d4a-4f5b-9c6d-7e8f9a0b1c2d",
    "account_id": 1234567,
    "action": "notification",
    "enabled": true,
    "name": "Workers cap",
    "notification_email": "billing@example.com",
    "product_id": "workers",
    "threshold_cents": 100,
    "version": 1,
    "current_state": {
      "balance_cents": 0,
      "billing_period_end": "2019-12-27T18:11:19.117Z",
      "billing_period_start": "2019-12-27T18:11:19.117Z",
      "enforcement": {
        "applied_generation": 0,
        "delivery_status": "pending",
        "desired_generation": 0,
        "desired_state": "active",
        "expires_at": "2019-12-27T18:11:19.117Z"
      },
      "evaluated_at": "2019-12-27T18:11:19.117Z",
      "status": "disabled"
    }
  },
  "success": true
}
Returns Examples
{
  "errors": [
    {
      "message": "message",
      "code": 0
    }
  ],
  "messages": [
    {
      "message": "message",
      "code": 0
    }
  ],
  "result": {
    "id": "6f1c2b8e-3d4a-4f5b-9c6d-7e8f9a0b1c2d",
    "account_id": 1234567,
    "action": "notification",
    "enabled": true,
    "name": "Workers cap",
    "notification_email": "billing@example.com",
    "product_id": "workers",
    "threshold_cents": 100,
    "version": 1,
    "current_state": {
      "balance_cents": 0,
      "billing_period_end": "2019-12-27T18:11:19.117Z",
      "billing_period_start": "2019-12-27T18:11:19.117Z",
      "enforcement": {
        "applied_generation": 0,
        "delivery_status": "pending",
        "desired_generation": 0,
        "desired_state": "active",
        "expires_at": "2019-12-27T18:11:19.117Z"
      },
      "evaluated_at": "2019-12-27T18:11:19.117Z",
      "status": "disabled"
    }
  },
  "success": true
}