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 — the standard set for sites on mintlify.
search_shuttle_aiquery_docs_filesystem_shuttle_aisubmit_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
register“Sign up at shuttleai.com and grab your API key from the dashboard”https://shuttleai.com
buy“Start free or pick a plan that fits your usage. Plans start at $10/month”https://shuttleai.com/pricing/plans
query_api“Point your OpenAI SDK at https://api.shuttleai.com/v1 and start building”https://api.shuttleai.com/v1
Context
7 sites in the index share the category ai api, of which 5 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
Api.AirforceApi.Airforce offers a unified AI API gateway with over 100 models including GPT-4 and Clau
ai api Electron Hub APIElectron Hub API provides unified access to over 450 AI models including chat, image, spee
ai api APIGPTProto API provides unified access to multiple AI models for text, image, video, and aud
ai api Pollo AI APIPollo AI API documentation provides setup for authentication, AI video and image task crea
ai api ShuttleAIShuttleAI provides unified access to multiple AI models via a single API key with pricing
ai api Unize APIUnize API provides access to AI systems for knowledge graph generation and question answer
ai api VibeMarketologRussian AI marketing platform offering agents for advertising, analytics, and sales with 2
ai marketing platform AigonAigon provides AI agents focused on productivity, education, property, and facilities mana
ai agents platform Record generated from a live database query. Method: about the index.