# x402lint Report (Cached)

> 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.

## Facts

- Endpoint: GET https://api.x402lint.dev/v1/report?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402lint-report-cached-726ffe24
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kf1HQ-29lHYeUlJrjjr-Y

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402lint-report-cached-726ffe24
```

Example prompt: Run a conformance scan on my x402 API at https://api.example.dev and give me the grade, score, and a list of which checks passed or failed so I know what to fix before agents start skipping it.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "cache": "hit",
  "grade": "B",
  "score": 82,
  "origin": "https://api.example.dev",
  "results": [
   {
    "id": "S1",
    "status": "pass"
   }
  ],
  "checksVersion": "2026-07-25.1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402lint-report-cached-726ffe24/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402lint.dev](https://www.zero.xyz/host/api.x402lint.dev/llms.txt)