CrawlCheck Census API

The Census API from CrawlCheck — 6 operation(s) for census.

Documentation GitHub OpenAPI

Operations 6

5 of 6 operations are conformant: apis.io called them with no credentials and the responses matched this contract. Checked 2026-11-12. how this works · status file

GET /api/v1/census/ask Ask the census a question in plain words (?q=): matched by meaning against… #

GET /api/v1/census/similarity Text similarity over one finished census run (?frame=top1k|top10k|top100k… conformant #

GET /api/v1/census/weekly Weekly edition of the agentic web census (?week=YYYY-Www, ISO week UTC; default… conformant #

GET /api/census The agentic-web census: the frame (a frozen Tranco top-1,000 list), every run… conformant #

GET /api/census/records One run's per-site records in frame order: the raw readings (statuses, sizes… conformant #

GET /api/census/frame The census sampling frame: the Tranco list id and configuration, the members… conformant #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Crawlcheck Io Census 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 Census 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:


# --- truncated at 32 KB (84 KB total) ---
# Full source: https://artifacts.apis.io/crawlcheck-io/openapi/crawlcheck-io-census-api-openapi.yml