What we tested
Probed live on 28 Aug 2026 against rubric v1. 3 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
register“Try an API without local setup”
Context
17 sites in the index share the category documentation, of which 2 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?
2 checks did not pass when we last looked: 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
CentralCartCentralCart documentation provides FAQs, step-by-step guides, and support contact options
documentation Dripsender DocsOfficial documentation site for Dripsender, providing user guides, tutorials, and support
documentation 个人文档A personal documentation site providing an index and tutorials for product usage.
documentation healthKERIhealthKERI provides documentation on cryptographically secure digital signatures and zero-
documentation ImageRouterImageRouter provides documentation for setting up, customizing, and managing documentation
documentation Isomeric.ai DocsDocumentation site for Isomeric.ai providing guides on translating unstructured text to ma
documentation Starter KitStarter Kit provides documentation and guides for setting up, customizing, and previewing
documentation Record generated from a live database query. Method: about the index.