What we tested
Probed live on 23 Aug 2026 against rubric v1. 4 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 its MCP server offers
We connected, ran tools/list, and recorded what came back on 23 Aug 2026. 3 tools, served from cortex-891fd898.main-kill-isr.mintlify.me — the standard set for sites on mintlify.
search_cortexquery_docs_filesystem_cortexsubmit_feedback
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
read“Fetch the complete documentation index at: https://docs.withcortex.ai/llms.txt”https://docs.withcortex.ai/llms.txt
Context
11 sites in the index share the category ai platform, of which 4 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?
1 check did not pass when we last looked: API catalog. 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
BytePlus AIBytePlus AI offers AI models, APIs, and products for video, image generation, and digital
ai platform DoeDoe is an AI platform for work that lets users delegate tasks to AI agents and receive fin
ai platform GlooGloo AI is a platform for building values-aligned AI for the faith ecosystem with APIs for
ai platform IdeaBoxAIIdeaBoxAI is a platform offering persona-driven AI assistants, real-time dashboards, and w
ai platform Lovi AI DocumentationLovi AI Documentation explains features of Lovi, an AI-first platform for automating and m
ai platform Oxen.aiOxen.ai is a platform providing access to AI models, data versioning, and collaboration to
ai platform ZGI 文档ZGI is an AI platform for enterprises that unifies model access, knowledge management, wor
ai platform TruGen AI DocumentationDocumentation for TruGen AI platform enabling real-time face-to-face AI agents with video,
ai platform Record generated from a live database query. Method: about the index.