What we tested
Probed live on 23 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
book“Prendre RDV”https://cal.com/antoine-gowie/meeting
Context
9 sites in the index share the category custom software development, 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?
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
Cost-Effective SoftwareCost-Effective Software builds custom software to automate business processes, replacing s
custom software development CappaWorkCappaWork designs, builds, hosts, secures, and maintains custom software for $5M-$50M Amer
custom software development NURO is, Inc.NURO identifies business inefficiencies and builds AI agents, custom software, and automat
custom software development Digital FoundryDigital Foundry provides senior-led custom software development and AI systems for enterpr
custom software development FMFM builds custom software, AI agents, and automations that integrate business tools and co
custom software development Bigbee SolutionsBigbee Solutions provides custom software, HubSpot integrations, operational automation, a
custom software development GrizzlywareGrizzlyware provides custom software development services for SMEs across the UK, focusing
custom software development Mekanism Electronics Pvt LtdMekanism Electronics Pvt Ltd provides custom software development, web and mobile app deve
custom software development Record generated from a live database query. Method: about the index.