{"slug":"sql-execution-certificate-verify-d3b7f493","name":"SQL execution certificate verify","summary":"Verify an Ed25519 execution certificate against the exact SQL statement you are about to run - the gate your database layer calls before it obeys an agent. Checks the signature, the certificate version, the expiry, and that the statement's SHA-256 matches the one certified, so a certificate for a different (or edited) statement is rejected. Returns { valid, reason, payload } and never throws on a malformed token, so the executor always gets one uniform answer.","status":"live","indexable":true,"listed_since":"2026-10-25T17:52:07.619425Z","sources":[{"source":"x402_bazaar","external_id":"https://agent402.tools/api/sql-cert-verify","owner_address":"0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0","seen_at":"2026-10-26T06:00:30.370112Z","removed_at":null}],"endpoints":[{"url":"https://agent402.tools/api/sql-cert-verify","host":"agent402.tools","protocol":"x402","state":"live","last_probe_at":"2026-10-25T22:07:10.000752Z","last_ok_at":"2026-10-25T22:07:10.000752Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"agent402-tools-4df46169","name":"agent402.tools"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":3,"paid_calls_30d":7,"last_paid_at":"2026-10-20T02:08:03.783Z","reported_at":"2026-10-26T06:00:30.370112Z"},"notice":"Not affiliated with addrbook — claim or request removal."}