Skip to main content
POST
/
api
/
v1
/
x402
/
verify
Verify x402 payment authorization
curl --request POST \
  --url https://api.paratro.com/api/v1/x402/verify \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "x402Version": 1,
  "paymentPayload": {
    "scheme": "exact",
    "network": "base-sepolia",
    "payload": {
      "signature": "0xabc123...",
      "authorization": {
        "from": "0xaaaa...",
        "to": "0xbbbb...",
        "value": "1500000",
        "validAfter": "0",
        "validBefore": "1774601102",
        "nonce": "0xdef456..."
      }
    }
  },
  "paymentRequirements": {
    "scheme": "exact",
    "network": "base-sepolia",
    "maxAmountRequired": "1500000",
    "resource": "https://example.com/api/resource",
    "description": "API access",
    "mimeType": "application/json",
    "payTo": "0xbbbb...",
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "maxTimeoutSeconds": 900
  }
}
'
{
  "isValid": true,
  "invalidReason": null,
  "payer": "0xaaaa..."
}

Authorizations

​
Authorization
string
header
required

JWT access token obtained from the /api/v1/auth/token endpoint.

Body

application/json

x402 payment verification or settlement request.

​
x402Version
enum<integer>
required

The version of the x402 protocol.

Available options:
1,
2
Example:

1

​
paymentPayload
object
required

The x402 protocol payment payload that the client attaches to x402-paid API requests to the resource server in the X-PAYMENT header.

​
paymentRequirements
object

The x402 protocol payment requirements that the resource server expects the client's payment payload to meet.

Response

Verification result.

Result of verifying an x402 payment authorization.

​
isValid
boolean
required

Whether the payment authorization is valid.

​
invalidReason
string | null
required

Machine-readable reason why the authorization is invalid, or null if valid.

​
payer
string

Address of the payer extracted from the authorization.