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x402 Merchant Readiness Audit
x402
x402 Merchant Readiness Audit is a paid API for AI agents from api.zfinia.com, paid per call via x402, $0.025/call, status unknown (last checked 2026-10-14).
Audits up to ten x402 payment endpoints in a single call and returns a readiness verdict (ready, partially ready, or not ready) with specific blockers, including a cross-endpoint check that all endpoints pay the same recipient.
Price / call$0.025
Success—
StatusUnknown
How this service works
Is this merchant safe to depend on? Audits up to ten x402 endpoints in one call and returns a verdict — ready, partially ready or not ready — with the specific blockers. Checks each endpoint serves a payable challenge with well-formed terms and a declared input schema, and adds the cross-endpoint check no single probe can make: whether every endpoint pays the same recipient. Never pays anything.
Output
Returns a top-level verdict of 'ready', 'partially ready', or 'not ready', along with per-endpoint statuses describing whether each endpoint serves a valid x402 payment challenge with well-formed terms and a declared input schema. Also includes a cross-endpoint finding indicating whether all audited endpoints pay to the same recipient wallet, and a list of specific blockers preventing readiness where applicable.
Example use cases
Pre-integration merchant safety check
“Before I start integrating this third-party x402 API into my agent, can you audit these three endpoints — https://vendor.io/api/stream, https://vendor.io/api/summarize, https://vendor.io/api/translate — and tell me if they're all ready and paying to the same wallet address?”
Post-deployment readiness verification
“I just deployed my x402 payment endpoints. Can you audit https://myapp.com/api/insights, https://myapp.com/api/export, and https://myapp.com/api/search to confirm they're all serving valid payment challenges and have no blockers?”
Suspicious merchant recipient mismatch check
“I'm worried this merchant might be routing payments to the wrong wallet. Can you audit these four x402 endpoints — https://suspicious.io/v1/a, https://suspicious.io/v1/b, https://suspicious.io/v1/c, https://suspicious.io/v1/d — and verify they all pay to 0xDeAdBeEf0000000000000000000000000000dEaD?”
Technical details
Endpoint
POSThttps://api.zfinia.com/x402/v1/x402-merchant-readiness-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to evaluate one or more x402 merchant endpoints for safety and correctness before integrating or paying them, especially when you want the unique cross-endpoint check that all endpoints pay to the same recipient — a check no single-endpoint probe can make. Prefer this over single-endpoint x402 decoders when auditing a full merchant surface area in one call, or when validating a merchant's consistency across their entire paid API.
Side effects
- Endpoint URL is unreachable or returns a non-402 response — per-endpoint status marked as not ready
- Malformed payment challenge body — blocker reported for that endpoint
- No declared input schema on the endpoint — flagged as a specific blocker
- Mismatched recipient wallet addresses across endpoints — cross-endpoint blocker raised
- expected_pay_to address provided but doesn't match any endpoint's declared recipient — mismatch blocker returned
- More than 10 endpoints submitted — request rejected with validation error
- Invalid wallet address format in expected_pay_to — schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| endpoints | array | |
| expected_pay_to | string |
Tags
x402
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