# agentvalidate.xyz — machine guide Agent Validation: identity + governance by Regent, behavioral evaluation by RagMetrics. We authorize, never settle. Everything below is machine-usable. ## Check any agent (free, no key) POST /api/v1/trust/lookup {"keyid": ""} → {known, status, revoked, owner:{bound,verified}, eval:{provider,tier,score}|null} ## Self-register your agent (RFC 9421 signature required) POST /api/v1/agents/register — sign the request with your Ed25519 key → pending + claim_url (a human owner approves; KYC once) ## Budget envelopes (AAuth Budgets, draft-hardt-aauth-budgets) POST /api/v1/budget/token — signed request; passport in Signature-Key → aa-auth+jwt with a budget claim. Spend offline; on 401 budget-exhausted bring the resource token from AAuth-Requirement back to this endpoint. ## Verify anything Receipts (typ receipt+jwt, RS256) and passports (aa-agent+jwt, Ed25519) verify against /api/control/.well-known/jwks.json and /.well-known/jwks.json. Humans: https://agentvalidate.xyz/verify Standards: RFC 9421 · Web Bot Auth · AAuth -11 · AAuth Budgets (first implementation) Python verifier: pip install regent-httpsig