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x402lint Report (Cached)
x402
x402lint Report (Cached) is a paid API for AI agents from api.x402lint.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-17).
Returns a cached A–F conformance grade with 25-check scan results for an x402-enabled API origin, paid per scan in USDC via x402.
Price / call$0.02
Success—
StatusUnknown
How this service works
The conformance scanner for x402 sellers — SSL Labs for x402. 25 checks across your protocol surface, agent docs, and directory standing return an A–F grade with per-check evidence and fixes. Pay per scan in USDC via x402. No signup, no API keys.
Output
A JSON object containing: cache status (hit/miss), overall letter grade (A–F), numeric score (0–100), the scanned origin URL, an array of per-check result objects each with a check ID and pass/fail status, and the version of the checks ruleset used.
Example use cases
Pre-launch x402 API audit
“Before I list my new API on x402 directories, scan https://api.mypaywall.dev and tell me its conformance grade and which of the 25 checks are failing so I can fix them first.”
Diagnosing agent discovery drop-off
“Agents stopped calling my API at https://api.dataservice.io — can you run the x402lint report on it and show me every failed check with the fix suggestions?”
Monitoring x402 standing after deploy
“I just redeployed my service at https://api.financetools.dev — quickly check its x402lint grade and score so I can confirm nothing broke in the conformance checks.”
Technical details
Endpoint
GEThttps://api.x402lint.dev/v1/report?utm_source=zero.xyzWhen to prefer
Choose this cached endpoint (GET /v1/report) when you want a fast, low-cost ($0.02) conformance check and are comfortable receiving a cached result. Prefer the sibling fresh-scan endpoint ($0.05) when you need guaranteed up-to-date results immediately after a deployment change. Use this endpoint when you want to routinely check x402 compliance grades without incurring full scan costs every time.
Side effects
- Invalid or unreachable origin URL returns an error with no grade
- Payment not included or insufficient USDC causes x402 payment-required rejection
- Origin that times out during probing may return partial results or error
- Malformed URL parameter results in a 400-level error
- Rate limiting or facilitator issues may block the payment flow
Output
Schema · Response
{
"type": "json",
"example": {
"cache": "hit",
"grade": "B",
"score": 82,
"origin": "https://api.example.dev",
"results": [
{
"id": "S1",
"status": "pass"
}
],
"checksVersion": "2026-07-25.1"
}
}Tags
x402
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