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 dimas-f3fd369f.main-kill-isr.mintlify.me — the standard set for sites on mintlify.
search_finsei_docsquery_docs_filesystem_finsei_docssubmit_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“Welcome to the Finsei Developer Documentation — your guide to integrating”https://docs.finsei.com/
download“Fetch the complete documentation index at: https://docs.finsei.com/llms.txt”https://docs.finsei.com/llms.txt
Context
4 sites in the index share the category financial api 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.
this site · 23 Aug 2026 tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
coming 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
NmbrNmbr provides API documentation for a platform handling tax calculation, payments, and com
financial api documentation BridgeDocumentation and guides for integrating Bridge to connect bank accounts and access financ
financial api documentation Recital DocumentationDocumentation providing guides and examples to integrate Recital's REST-based financial AP
financial api documentation Credicorp LimitedCredicorp Limited provides short-term business loans to UK limited companies with no perso
business loans Skylit StudioSkylit Studio offers personalised star maps and moon prints to commemorate special moments
personalised star maps AI Consultant EssexAI Consultant Essex provides AI training, chatbot implementation, and automation services
ai consultancy Haute FloristHaute Florist offers luxury flowers and hat box flowers with next day delivery across the
flower delivery Prestige FlowersPrestige Flowers offers next-day flower delivery across the UK with a selection of hand-ti
flower delivery Record generated from a live database query. Method: about the index.