CrawlCheck Field Check API
The Field Check API from CrawlCheck — 1 operation(s) for field check.
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This API
curl "https://apis.io/api/v1/apis/crawlcheck-io:crawlcheck-io-field-check-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: Crawlcheck Io Field Check 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 Field Check 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: Field Check
paths:
/api/v1/field-check:
get:
operationId: fieldCheckV1
summary: Verified fields (fv1). One signed verdict per business field.
parameters:
- name: domain
in: query
required: true
schema:
type: string
- name: field
in: query
required: true
schema:
type: string
enum:
- phone
- address
- hours
- service_area
- name: value
in: query
required: true
schema:
type: string
responses:
'200':
description: Signed field verdict
content:
application/json:
examples:
worked:
summary: Shape from the build harness on 2026-10-15; the signature block is abbreviated.
value:
kind: crawlcheck-field-check
v: 1
domain: example.com
field: phone
asked: (303) 555-0142
checked_at: '2026-10-16T04:40:00.000Z'
access: public
record:
status: agree
taken_from: site:structured-data
statements:
- from: site:structured-data
where: LocalBusiness
value: (303) 555-0188
- from: site:tel-link
value: (303) 555-0188
basis:
record_built_at: '2026-10-16T02:10:00.000Z'
site_read: true
sources: the site (the Business Profile goes to the domain's licence holder)
fact_history:
scans: 24
first: '2026-08-01T10:00:00.000Z'
updated: '2026-10-15T10:00:00.000Z'
ownership:
verdict: belongs_to
business: Example Heating
domain: exampleheating.com
source: CrawlCheck scan of exampleheating.com (2026-10-02)
verdict: not_this_business
current:
- (303) 555-0188
statement: '(303) 555-0142 is not a number example.com publishes: the site has not published it in 24 scan(s) since 2026-08-01, and its own number is (303) 555-0188. The number is published by Example Heating (exampleheating.com).'
reading: Use (303) 555-0188 for example.com. (303) 555-0142 is printed by Example Heating (exampleheating.com).
sha256: …
signature:
alg: Ed25519
kid: …
sig: …
schema:
type:
- object
- 'null'
properties:
kind:
type:
- string
- 'null'
v:
type:
- number
- 'null'
domain:
type:
- string
- 'null'
field:
type:
- string
- 'null'
asked:
type:
- string
- 'null'
checked_at:
type:
- string
- 'null'
access:
type:
- string
- 'null'
record:
type:
- object
- 'null'
properties:
status:
type:
- string
- 'null'
taken_from:
type:
- string
- 'null'
statements:
type:
- array
- 'null'
items:
type:
- object
- 'null'
properties:
from:
type:
- string
- 'null'
where:
type:
- string
- 'null'
value:
type:
- string
- 'null'
additionalProperties: true
additionalProperties: true
basis:
type:
- object
- 'null'
properties:
record_built_at:
type:
- string
- 'null'
site_read:
type:
- boolean
- 'null'
sources:
type:
- string
- 'null'
fact_history:
type:
- object
- 'null'
properties:
scans:
type:
- number
- 'null'
first:
type:
- string
- 'null'
updated:
type:
- string
- 'null'
additionalProperties: true
additionalProperties: true
ownership:
type:
- object
- 'null'
properties:
verdict:
type:
- string
- 'null'
business:
type:
- string
- 'null'
domain:
type:
- string
- 'null'
source:
type:
- string
- 'null'
additionalProperties: true
verdict:
type:
- string
- 'null'
current:
type:
- array
- 'null'
items:
type:
- string
- 'null'
statement:
type:
- string
- 'null'
reading:
type:
- string
- 'null'
sha256: {}
signature:
type:
- object
- 'null'
properties:
alg:
type:
- string
- 'null'
kid: {}
sig: {}
additionalProperties: true
additionalProperties: true
x-schema-source: worked-example
'400':
description: Bad field or value
'429':
description: Hourly record budget spent for this address
x-codeSamples:
- lang: Shell
label: curl
source: curl -s 'https://crawlcheck.io/api/v1/field-check?domain=example.com&field=phone&value=3035550142'
security: []
x-auth: public; no credential read
tags:
- Field Check
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