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GENESIS Agent Tools — Webhook Signature Verifier
x402
GENESIS Agent Tools — Webhook Signature Verifier is a paid API for AI agents from genesis-agent-tools.genesisagenttools.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Verifies that a webhook signature matches the expected HMAC or similar signature derived from a shared secret and request body.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call x402 APIs for autonomous agents on Base USDC: API compatibility analysis, bounded HTTP/JSON workflows, URL evidence analysis, crypto price consensus, and agent/MCP readiness checks.
Output
Returns a JSON object with a single boolean field 'valid' — true if the provided signature matches what is computed from the body and secret, false otherwise.
Example use cases
Validate incoming payment webhook
“I just received a webhook from our payments provider with body '{"event":"charge.succeeded","id":"ch_001"}' and signature 'sha256=deadbeef1234'. My webhook secret is 'whsec_myPaymentSecret'. Can you verify it's legitimate before I process the order?”
Authenticate CI/CD pipeline event
“My CI system sent a webhook with body '{"ref":"refs/heads/main","pusher":"alice"}' and the signature header is 'sha256=9f8e7d6c5b4a'. The shared secret configured is 'ci_secret_token_xyz'. Please check if the signature is valid.”
Verify third-party alert integrity
“We got an inbound alert webhook with body '{"alert":"cpu_high","host":"prod-1"}' signed as 'sha256=112233aabbcc' using our monitoring secret 'mon_secret_987'. Can you confirm whether the signature checks out before we trigger the incident response?”
Technical details
Endpoint
POSThttps://genesis-agent-tools.genesisagenttools.workers.dev/api/tools/webhook-signature-verify?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call webhook signature verification step inside an autonomous agent workflow, especially when you want to avoid standing up your own HMAC verification service. Particularly suited for agent pipelines built on the x402 micropayment protocol with Base USDC, where you only pay $0.01 per verification and don't need to maintain infrastructure.
Side effects
- Missing required fields (body, secret, or signature) results in a 400 error
- Signature mismatch returns {"valid": false} without an error
- Invalid or malformed signature format may return false or a parsing error
- Payment failure (x402) if USDC balance is insufficient
- Network timeout or Cloudflare Worker cold start latency on rare occasions
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| bodyrequired | string | |
| secretrequired | string | |
| signaturerequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| valid | boolean |
Tags
x402
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