CrawlCheck Visitor API
The Visitor API from CrawlCheck — 2 operation(s) for visitor.
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This API
curl "https://apis.io/api/v1/apis/crawlcheck-io:crawlcheck-io-visitor-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: Crawlcheck Io Visitor API
version: '1'
contact:
name: CrawlCheck
url: https://crawlcheck.io/policy
email: hello@crawlcheck.io
license:
name: Terms
url: https://crawlcheck.io/policy
x-core-contract:
promise: 'These operations are the core contract. They stay at /api/v1 and keep answering for at least 180 days after any /api/v2 is announced; their stable fields change only in a new major version, and their provisional fields only after 30 days'' notice, per /docs/api/compatibility. Verifying what they return needs none of these calls: crawlcheck-verify.mjs checks a document on your machine against the published keys (/.well-known/http-message-signatures-directory) and the rotation record, read once with --online or saved for --keys. Everything else documented here is useful but secondary, and may change with the notice its fields'' tags promise.'
operations:
- method: GET
path: /api/v1/resolve
operationId: resolveDomainV1
- method: POST
path: /api/v1/resolve
operationId: resolveBatchV1
- method: POST
path: /api/v1/preflight
operationId: preflightV1
- method: GET
path: /api/v1/decisions/{sha256}
operationId: decisionCheckV1
- method: GET
path: /api/v1/revocations
operationId: revocations
- method: GET
path: /api/v1/visitor
operationId: visitorResolveV1
- method: POST
path: /api/v1/visitor
operationId: visitorResolveBatchV1
- method: GET
path: /api/v1/mcp/scan
operationId: mcpScanUrl
- method: POST
path: /api/v1/mcp/lock/check
operationId: mcpLockCheck
list: https://crawlcheck.io/api/v1/core
description: 'Operations tagged Visitor across 2 of this provider''s published API definitions: crawlcheck-io-openapi.json, crawlcheck-io-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://crawlcheck.io
tags:
- name: Visitor
paths:
/api/v1/visitor/arrival:
get:
operationId: visitorArrivalV1
summary: A site's own Cloudflare Worker reports one agent request (ua, path, verdict)…
parameters:
- name: ua
in: query
required: true
schema:
type: string
- name: path
in: query
schema:
type: string
- name: verdict
in: query
schema:
type: string
enum:
- verified
- spoofed
- unverifiable
responses:
'200':
description: recorded
content:
application/json:
examples:
worked:
value:
ok: true
site: example.com
recorded: true
note: counted toward example.com's arrivals for today
schema:
type:
- object
- 'null'
properties:
ok:
type:
- boolean
- 'null'
site:
type:
- string
- 'null'
recorded:
type:
- boolean
- 'null'
note:
type:
- string
- 'null'
additionalProperties: true
x-schema-source: worked-example
'403':
description: not a Worker subrequest
x-codeSamples:
- lang: Shell
label: curl
source: 'curl -s ''https://crawlcheck.io/api/v1/visitor/arrival?ua=GPTBot&path=/&verdict=verified'' # from a Cloudflare Worker'
security: []
x-auth: public; no credential read
tags:
- Visitor
servers:
- url: https://crawlcheck.io
/api/v1/visitor/stats:
get:
operationId: visitorStatsV1
summary: Daily counts of visitor checks for the last 14 days, by verdict and claimed…
responses:
'200':
description: crawlcheck-visitor-stats
content:
application/json:
examples:
worked:
summary: Shape with one day shown; not a measurement.
value:
kind: crawlcheck-visitor-stats
v: 1
generated_at: '2026-10-08T07:00:00.000Z'
reading: 'Visitor checks sites sent to CrawlCheck, by verdict and by the agent the user agent claimed. Counts only: no addresses, user agents or site names are kept. Recent counts reach this table within a few minutes.'
days:
- day: '2026-10-07'
checked: 120
by_verdict:
verified: 71
spoofed: 33
unverifiable: 9
not_a_known_agent: 7
by_agent:
GPTBot:
verified: 40
spoofed: 21
spec: https://crawlcheck.io/spec/visitor-resolve
schema:
type:
- object
- 'null'
properties:
kind:
type:
- string
- 'null'
v:
type:
- number
- 'null'
generated_at:
type:
- string
- 'null'
reading:
type:
- string
- 'null'
days:
type:
- array
- 'null'
items:
type:
- object
- 'null'
properties:
day:
type:
- string
- 'null'
checked:
type:
- number
- 'null'
by_verdict:
type:
- object
- 'null'
properties:
verified:
type:
- number
- 'null'
spoofed:
type:
- number
- 'null'
unverifiable:
type:
- number
- 'null'
not_a_known_agent:
type:
- number
- 'null'
additionalProperties: true
by_agent:
type:
- object
- 'null'
properties:
GPTBot:
type:
- object
- 'null'
properties:
verified:
type:
- number
- 'null'
spoofed:
type:
- number
- 'null'
additionalProperties: true
additionalProperties: true
additionalProperties: true
spec:
type:
- string
- 'null'
additionalProperties: true
x-schema-source: worked-example
x-codeSamples:
- lang: Shell
label: curl
source: curl -s 'https://crawlcheck.io/api/v1/visitor/stats'
security: []
x-auth: public; no credential read
tags:
- Visitor
servers:
- url: https://crawlcheck.io
components:
securitySchemes:
licenceKey:
type: apiKey
in: header
name: x-crawlcheck-key
description: 'Your licence key: cc_ followed by 32 hex characters. Sent on every keyed call.'
bearer:
type: http
scheme: bearer
description: The same licence key as a Bearer token. Accepted on /api/v1/* and /api/usage.
externalDocs:
url: https://crawlcheck.io/docs/api
description: Human-readable reference
x-refined-from:
- crawlcheck-io-openapi.json
- crawlcheck-io-openapi.yml