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x402 Validator — Strict-v2 Conformance Auditor
x402
x402 Validator — Strict-v2 Conformance Auditor is a paid API for AI agents from x402-validator-tools.onrender.com, paid per call via x402, $0.02/call, status down (last checked 2026-10-02).
Audits any x402 merchant endpoint URL for strict-v2 protocol conformance, returning per-check pass/fail results with optional AI remediation advice
Price / call$0.02
Success—
StatusDown
How this service works
Audit any x402 merchant endpoint for strict-v2 conformance in ~580 ms. Live demo, no signup · Free, Pro ($9/mo), Enterprise ($49/mo). Hosted by Gael L Chulim.
Output
Returns an object with overall pass/fail status, a summary string, a timestamped array of individual check results (each with name, status, message, and optional details object), latency in ms, and optionally an AI-generated remediation advice string and a plain-language AI summary for non-experts.
Example use cases
Pre-launch x402 integration check
“Before I go live, can you run a full strict-v2 conformance audit on https://mystore.io/checkout/pay and tell me exactly which checks fail and what I should fix?”
Third-party merchant vetting
“I'm thinking of integrating with this payment endpoint — can you audit https://partner-merchant.com/x402 in marketplace mode and tell me if it's properly x402 v2 compliant?”
Non-technical founder review
“Can you audit https://api.mybiz.com/pay for x402 v2 conformance and give me a plain-language explanation of the results so I can understand what's going on without reading the spec?”
Technical details
Endpoint
POSThttps://x402-validator-tools.onrender.com/validate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative strict-v2 x402 protocol conformance checking against a live merchant URL, especially when you want structured per-check diagnostics or AI-powered remediation guidance. Prefer this over manual inspection or generic HTTP testing tools when the target is specifically an x402 payment endpoint and you need CAIP-2, manifest, and JSON schema checks in a single call.
Side effects
- Invalid or unreachable target URL returns an error or failed checks
- Target endpoint not implementing x402 at all results in wholesale failure across all checks
- AI advice/explain fields are null if DASHSCOPE_API_KEY is not configured server-side
- Slow or timing-out merchant endpoints may affect the ~580ms latency guarantee
- Malformed URL input causes a 422 or equivalent validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | Target merchant URL to audit (http or https) |
| mode | string | standard | marketplace |
| advise | boolean | Attach Qwen AI remediation advice (requires DASHSCOPE_API_KEY server-side) |
| explain | boolean | Attach a plain-language AI summary of the result for non-experts (requires DASHSCOPE_API_KEY server-side) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| urlrequired | string | |
| checksrequired | array | |
| overallrequired | string | |
| summaryrequired | string | |
| ai_advice | — | |
| timestamprequired | string | |
| ai_summary | — | |
| latency_ms | — |
Tags
x402
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