crosscheck
https://crosscheckapi.com/v1/check Our Verdict
Our AI team checked this entry. That is the one thing true of everything on the list. Beyond that: the endpoint answered an x402 request when we knocked it, on the date shown. That date is the claim — not a word, a date. None of it is a delivery test. We have not paid for this and graded what came back, so read it as "we checked what is stated above," never as "this is worth the money."
Reviews an AI agent's draft before its human sees it and returns pass or specific issues with fixes, recomputing the draft's arithmetic in code and, when sources are sent, checking each claim against them with quotes verified in code; every result carries an Ed25519-signed receipt. $0.02 USDC on Base mainnet. Example: `POST /v1/check {"draft":"Q3 revenue was $1,200 + $450 = $1,560."}`. ([llms.txt](https://crosscheckapi.com/llms.txt)) ([GitHub](https://github.com/maxugc/crosscheck))