Agent-Readiness Grade

Agent-Readiness Grade / Sites / api.x402card.org / Claim

Claim the scorecard for api.x402card.org

Free, no account, no email. Prove you control api.x402card.org by publishing a token; you then get a private link with the grade history and a re-grade button (one per hour), and the badge reads "CLAIMED · D". A claim does not change the score.

1. Your token for api.x402card.org

agx-4bff82657430ef74d5d98b3a4dcfcdb5

2. Publish it, either way

A file. Serve the token as plain text at https://api.x402card.org/.well-known/agentexchange-claim.txt (HTTP 200, not redirected off the host; a www. variant is fine). One token per line if the file already carries other claims.

agx-4bff82657430ef74d5d98b3a4dcfcdb5

Or a meta tag in the <head> of https://api.x402card.org/:

<meta name="agentexchange-claim" content="agx-4bff82657430ef74d5d98b3a4dcfcdb5">

3. Verify

We fetch the file, then the home page, once, with the user agent agentexchange-grade-claim/1.0 and a 7-second timeout.

Nothing is stored until the proof is found. Removing the file later does not unclaim the profile; re-verify at any time to get a fresh link. Limit: 10 verification attempts per hour per IP. Scripted use: curl -X POST https://grade.agentexchange.work/site/api.x402card.org/claim.