{"slug":"webhook-signature-verify-9e3d47b3","name":"Webhook signature verify","summary":"Verify a webhook's HMAC signature against the correct per-provider scheme: GitHub (X-Hub-Signature-256, sha256=hex), Stripe (Stripe-Signature t/v1 over \"<t>.<body>\" with replay tolerance), Shopify (X-Shopify-Hmac-Sha256, base64), Slack (X-Slack-Signature, v0:<ts>:<body> with replay tolerance). Constant-time comparison; the secret is never echoed. Pass the RAW request body string - signatures are over the raw bytes. Deterministic.","status":"live","indexable":true,"listed_since":"2026-10-25T17:52:07.619425Z","sources":[{"source":"x402_bazaar","external_id":"https://agent402.tools/api/webhook-verify","owner_address":"0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0","seen_at":"2026-10-26T06:00:30.370112Z","removed_at":null}],"endpoints":[{"url":"https://agent402.tools/api/webhook-verify","host":"agent402.tools","protocol":"x402","state":"live","last_probe_at":"2026-10-25T22:06:32.838233Z","last_ok_at":"2026-10-25T22:06:32.838233Z","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":"2026-10-20T02:09:07.506Z","reported_at":"2026-10-26T06:00:30.370112Z"},"notice":"Not affiliated with addrbook — claim or request removal."}