Tool detail

scan

Runs a fresh 25-check x402 conformance scan of a given origin and returns a letter grade with per-check evidence.

Categories: API testing

Use when

grade an x402 seller origin's protocol conformance
force a fresh scan bypassing the 24h cached report
get fix instructions for a failing x402 endpoint

Not for

not an authoritative/certified compliance judgment — docs call this a reference-implementation scanner
for a free cached result instead, use GET /v1/report

Inputs

POST JSON body: { url: string } (required, the origin to scan, e.g. api.example.dev)

Admitted input schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Origin to scan, e.g. https://api.example.dev"
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://api.x402lint.dev/v1/scan

Payment

Protocol: x402
Listed price: $0.05 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://api.x402lint.dev/v1/scan
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z