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 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
search“Search any legal entity across 40+ countries by name or registration number”
query_api“API reference: https://docs.topograph.co”https://docs.topograph.co
book“Book a demo: https://www.topograph.co#book-demo”https://www.topograph.co#book-demo
Context
2,006 sites in the index share the type saas, of which 1,410 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: 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.
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portfolio Cloudflare StatusReal-time status and incident history for Cloudflare services, network locations, and sche
system status New Station BarsNew Station Bars operates two Singapore zi char outlets in Orchard and Bugis offering clas
singaporean restaurant Fusion TuitionFusion Tuition offers small-group Physics, Chemistry, and Mathematics tuition in Singapore
tuition centre SEOExpertSEOExpert is a Singapore-based digital marketing agency offering SEO, PPC, advertising, an
digital marketing agency Record generated from a live database query. Method: about the index.