curl -i "https://test402.com/api/x402?quirk=expired"
Returns 402 with a window already gone: a past expires for MPP, and maxTimeoutSeconds of 0 for x402, which states its window as a duration rather than a deadline.
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?quirk=expired",
"description": "test402 challenge",
"mimeType": "application/json"
},
"accepts": [
{
"scheme": "exact",
"network": "eip155:84532",
"amount": "100",
"asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"payTo": "0x0000000000000000000000000000000000000402",
"maxTimeoutSeconds": 0,
"extra": {
"name": "USDC",
"version": "2",
"assetTransferMethod": "eip3009"
}
}
],
"extensions": {
"https://test402.com/extensions/facilitator": {
"id": "x402org",
"url": "https://x402.org/facilitator"
}
},
"note": "test402 scenario. quirk=expired"
}