Agent-Readiness Grade / Sites / callsign.com / Claim
Claim the scorecard for callsign.com
Free, no account, no email. Prove you control callsign.com 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 · C". A claim does not change the score.
1. Your token for callsign.com
agx-ecfb8ae254f6a8345ac5ed1e84da7d06
2. Publish it, either way
A file. Serve the token as plain text at https://callsign.com/.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-ecfb8ae254f6a8345ac5ed1e84da7d06
Or a meta tag in the <head> of https://callsign.com/:
<meta name="agentexchange-claim" content="agx-ecfb8ae254f6a8345ac5ed1e84da7d06">
3. Verify
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/callsign.com/claim.