Agent-Readiness Grade / Sites / mcsec.org / Claim
Claim the scorecard for mcsec.org
Free, no account, no email. Prove you control mcsec.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 · F". A claim does not change the score.
1. Your token for mcsec.org
agx-3fee59548dc7b48d56a286f700d8bdce
2. Publish it, either way
A file. Serve the token as plain text at https://mcsec.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-3fee59548dc7b48d56a286f700d8bdce
Or a meta tag in the <head> of https://mcsec.org/:
<meta name="agentexchange-claim" content="agx-3fee59548dc7b48d56a286f700d8bdce">
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/mcsec.org/claim.