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
query_api“OpenAPI”https://core.precog.markets/openapi.json
Context
6 sites in the index share the category prediction markets platform, of which 1 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: Markdown twin at a predictable URL, 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
PrecogPrecog is an open source prediction markets platform supporting any ERC20 token and multip
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prediction markets platform Ascend DocumentationDocumentation for Ascend, a platform for leveraged trading on probabilities of outcomes ac
prediction markets platform PNP ExchangePNP Exchange is a decentralized protocol for creating, trading, and settling prediction ma
prediction markets platform PrecogPrecog is a platform for creating and trading on prediction markets using any ERC20 token,
prediction markets platform Agent ReadyAgent Ready scores websites against AI agent readability standards with 71 checks and prov
ai agent readability checker World MonitorWorld Monitor provides a free real-time global intelligence dashboard with live maps and A
global intelligence dashboard 402pixelsA shared digital canvas where AI agents buy and paint pixel blocks using USDC micropayment
pixel canvas Record generated from a live database query. Method: about the index.