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
register“Register your integration for SSO, partner access, and production API keys”https://builders.etoro.com/app-registration
query_api“Interactive API experimentation — pick endpoints, send requests, and inspect live responses”https://builders.etoro.com/playground
Context
8 sites in the index share the category api platform, of which 6 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: Markdown twin at a predictable URL. 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
SmartlyQSmartlyQ provides an API platform for content creation, social media management, chatbots,
api platform BotaBota provides a multi-tenant hardware and API platform to capture, ingest, and process off
api platform FlowyteFlowyte provides an API-first platform to build AI voice and chat agents that answer calls
api platform Seamless Developer PortalDeveloper documentation for Seamless OS API platform to launch and run mobile operators wi
api platform Skald DocsSkald is an open-source API platform for building AI apps with SDKs, chat, search, and eva
api platform PerplexityPerplexity API platform provides Router, Agent, Search, and Embeddings APIs for real-time
api platform PerplexityPerplexity API Platform offers Router, Agent, Search, and Embeddings APIs for real-time we
api platform Aptos DocumentationAptos Developer Documentation provides guides, SDKs, and tools to build Web3 applications
blockchain developer documentation Record generated from a live database query. Method: about the index.