What we tested
Probed live on 28 Aug 2026 against rubric v1. 2 of 5 checks passed.
PROBE-VERIFIEDtier 2 of 3
✓Markdown negotiationAccept: text/markdown
—Markdown twin at a predictable URL/page.md
✓llms.txt/llms.txt
—API catalogRFC 9727
—MCP server answers/.well-known/mcp/server-card.json → tools/list
What an agent could do here
Read from the page’s own content, with the wording each was drawn from. Inference is kept separate from tested facts — an agent completing the action is tier 3.
UNVERIFIED
request_quote“generate them on the API Page (you need admin rights to do this)”
query_api“Use the access token in the Authorization header”
Context
316 sites in the index share the category api documentation, of which 83 are transactional.
How we grade
Three tiers. Every listing shows which one it has reached, and when. The rubric.
tier 1Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
tier 2Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
Own this site?
3 checks did not pass when we last looked: Markdown twin at a predictable URL, API catalog, MCP server answers. Each is a small, specific fix; the rubric says exactly what we look for.
Behavioural verification — an agent completing your booking, purchase or contact flow end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.
Related verified sites
Extrovert APIExtrovert API documentation provides REST API and webhooks for integrating Extrovert with
api documentation Respondent APIDocumentation and resources for Respondent API integration including endpoints, staging cr
api documentation Enterspeed DocsEnterspeed Documentation provides guides and references for syncing, transforming, and del
api documentation Asset API DocumentationDocumentation for the Asset API including registration, authentication, and making API cal
api documentation Hydrobit B2B APIPublic documentation for Hydrobit B2B API covering Harvest and Phytosanitary endpoints wit
api documentation MeridianDocumentation site providing guides, API references, and integration resources for Meridia
api documentation AILabToolsAILabTools provides flexible API endpoints for AI image editing, enhancement, generation,
api documentation Jarvi APIJarvi API documentation provides details on usage, limits, and key retrieval for interacti
api documentation Record generated from a live database query. Method: about the index.