compliantx402

Expensive request

A challenge asking $50, far above a sane per-call ceiling.

Your client should Refuse it before signing anything.

Protocol: x402
Network: Base Sepolia
Price: 50 USDC
Scheme: exact
Facilitator: x402.org
Behavior: Compliant

A well-formed challenge. Your client should pay it.

Customize this test

Your endpointcompliant

/api/x402?amount=50000000

Try it

curl -i "https://test402.com/api/x402?amount=50000000"

Returns 402 with a spec-compliant challenge.

Response it will return (HTTP 402)

PAYMENT-REQUIRED: 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

{
  "x402Version": 2,
  "error": "PAYMENT-SIGNATURE header is required",
  "resource": {
    "url": "https://test402.com/api/x402?amount=50000000",
    "description": "test402 challenge",
    "mimeType": "application/json"
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:84532",
      "amount": "50000000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "payTo": "0x0000000000000000000000000000000000000402",
      "maxTimeoutSeconds": 300,
      "extra": {
        "name": "USDC",
        "version": "2",
        "assetTransferMethod": "eip3009"
      }
    }
  ],
  "extensions": {
    "https://test402.com/extensions/facilitator": {
      "id": "x402org",
      "url": "https://x402.org/facilitator"
    }
  },
  "note": "test402 scenario. quirk=none"
}