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Threat Intelligence APIs

Cloudflare provides a series of endpoints covering various areas of internet security and insights. Based on your Cloudflare plan type, the limit of API calls will vary per month.

Intelligence EndpointDefinition
ASN IntelligenceProvides an overview of the Autonomous System Number (ASN) and a list of subnets for it.
Domain IntelligenceProvides security details and statistics about a domain.
Domain HistoryProvides historical security threat and content categories that are currently and previously assigned to a domain.
IP IntelligenceProvides the geolocation, ASN, infrastructure type of the ASN, and any security threat categories of an IP address.
Passive DNS by IPProvides a list of all the domains, including first seen and last seen dates, that have resolved to a specific IP address.
Phishing IntelligenceProvides phishing details about a URL.
Miscategorization IntelligenceEnables users to submit requests for modifying a domain’s category, subsequently undergoing review by the Cloudflare Intelligence team.
Priority Intelligence RequirementsProvides a structured approach to identifying intelligence gaps, formulating precise requirements, and organizing them into categories.
Request for InformationCreates a targeted inquiry for specific intelligence insights to help organizations understand and respond to imminent security threats and vulnerabilities.
WHOISProvides the WHOIS registration information for a specific domain.
DDoS Botnet Threat Feed
(early access)
Provides information to service providers about their own IP addresses that have participated in HTTP DDoS attacks as observed from Cloudflare’s global network.

​​ API Examples

Below you can find examples of Threat Intelligence API calls. Make sure you are using an API Token with the appropriate edit permissions. For comprehensive details, navigate to the respective API documentation using the links above.

​​ ASN Intelligence

Get ASN Overview
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/asn/13335" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
# Example response:
{
"result": {
"asn": 13335,
"description": "CLOUDFLARENET",
"country": "US",
"type": "isp"
},
"success": true,
"errors": [],
"messages": []
}

​​ Domain Intelligence

Get Domain Details
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/domain?domain=cloudflare.com" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
# Example response:
{
"result": {
"domain": "cloudflare.com",
"resolves_to_refs": [
{
"id": "ipv4-addr--71f6bb54-e0c5-5e7d-b939-5698fc15a102",
"value": "104.16.133.229"
},
{
"id": "ipv4-addr--015b0df4-7fcd-5409-9b56-cfd300c662f6",
"value": "104.16.132.229"
},
{
"id": "ipv6-addr--4a7455cd-e8d0-5bfb-8bdb-f6ebb1759508",
"value": "2606:4700::6810:85e5"
},
{
"id": "ipv6-addr--68f89579-7204-5ebd-a851-e91b3a86fc6d",
"value": "2606:4700::6810:84e5"
}
],
"application": {},
"content_categories": [
{
"id": 155,
"super_category_id": 26,
"name": "Technology"
},
{
"id": 26,
"name": "Technology"
}
],
"additional_information": {},
"type": "Apex domain",
"notes": "Apex domain given."
},
"success": true,
"errors": [],
"messages": []
}

​​ Domain History

Get Domain History
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/domain-history?domain=cloudflare.com" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
{
"result": [
{
"domain": "cloudflare.com",
"categorizations": [
{
"categories": [
{
"id": 155,
"name": "Technology"
}
],
"start": "2020-12-16T19:49:30.533482Z",
"end": "2023-05-31T08:12:53.547029Z"
},
{
"categories": [
{
"id": 115,
"name": "Login Screens"
},
{
"id": 155,
"name": "Technology"
}
],
"start": "2023-05-31T08:12:53.547029Z"
}
]
}
],
"success": true,
"errors": [],
"messages": []
}

​​ IP Intelligence

Get IP Overview
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/ip?ipv4=1.1.1.1" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
# Example response:
{
"result": [
{
"ip": "1.1.1.1",
"belongs_to_ref": {
"id": "autonomous-system--2fa28d71-3549-5a38-af05-770b79ad6ea8",
"value": 13335,
"type": "isp",
"country": "US",
"description": "CLOUDFLARENET"
},
"ip_lists": null,
"ptr_lookup": {
"ptr_domains": [
"one.one.one.one."
],
"ptr_lookup_errors": ""
},
"iana_reservations": []
}
],
"success": true,
"errors": [],
"messages": []
}

​​ Passive DNS by IP

Get Passive DNS by IP
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/dns?ipv4=1.1.1.1&start=2023-07-15&end=2023-07-18&per_page=5" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
# Example response:
{
"result": {
"reverse_records": [
{
"first_seen": "2023-07-15T00:00:00Z",
"last_seen": "2023-07-18T00:00:00Z",
"hostname": "internet-ping.svc.starlink.com"
},
{
"first_seen": "2023-07-15T00:00:00Z",
"last_seen": "2023-07-18T00:00:00Z",
"hostname": "one.one.one.one"
},
{
"first_seen": "2023-07-15T00:00:00Z",
"last_seen": "2023-07-18T00:00:00Z",
"hostname": "ping.ui.com"
},
{
"first_seen": "2023-07-15T00:00:00Z",
"last_seen": "2023-07-18T00:00:00Z",
"hostname": "ping.ubnt.com"
},
{
"first_seen": "2023-07-15T00:00:00Z",
"last_seen": "2023-07-18T00:00:00Z",
"hostname": "bflow.tiki.video"
}
],
"count": 778,
"page": 1,
"per_page": 5
},
"success": true,
"errors": [],
"messages": []
}

​​ Phishing Intelligence

Get results for a URL scan
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/brand-protection/url-info?url=http://worcester-realistic-ellen-portland.trycloudflare.com/login.html" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
# Example response:
{
"errors": [],
"messages": [],
"result": [
{
"categorizations": [],
"model_results": [
{
"model_name": "MACHINE_LEARNING_v2",
"model_score": 0.999
}
],
"rule_matches": [
{
"description": "Match frequently used phishing kit (Discord, Facebook, Instagram, Twitter)",
"name": "phishkit.social"
}
],
"scan_status": {
"last_processed": "Wed, 19 Jul 2023 14:15:28 GMT",
"scan_complete": true,
"status_code": 200,
"submission_id": 23098147
},
"url": "http://worcester-realistic-ellen-portland.trycloudflare.com/login.html"
}
],
"success": true
}

​​ Miscategorization Intelligence

Create Miscategorization
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/miscategorization" \
--header "Authorization: Bearer <API_TOKEN>" \
--header "Content-Type: application/json" \
--data '{
"content_adds": [
82
],
"content_removes": [
82
],
"indicator_type": "url",
"ip": null,
"security_adds": [
117,
131
],
"security_removes": [
117
],
"url": "https://wrong-category.example.com"
}'
# Example response:
{
"result": "",
"success": true,
"errors": [],
"messages": []
}

​​ WHOIS

Get WHOIS Record
curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/intel/whois?domain=cloudflare.com" \
--header "Authorization: Bearer <API_TOKEN>" | jq .
# Example response:
{
"result": {
"domain": "cloudflare.com",
"created_date": "2009-02-17",
"updated_date": "2017-05-24",
"registrant": "DATA REDACTED",
"registrant_org": "DATA REDACTED",
"registrant_country": "United States",
"registrant_email": "https://domaincontact.cloudflareregistrar.com/cloudflare.com",
"registrar": "CloudFlare, Inc.",
"nameservers": [
"ns3.cloudflare.com",
"ns4.cloudflare.com",
"ns5.cloudflare.com",
"ns6.cloudflare.com",
"ns7.cloudflare.com"
]
},
"success": true,
"errors": [],
"messages": []
}