> ## Documentation Index
> Fetch the complete documentation index at: https://docs.x402x.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# POST /verify

> Validate whether the payment signature and data satisfy the requirements

## Request

```json theme={null}
POST /verify
{
  "payload": { "...": "PaymentPayload" },
  "requirements": { "...": "PaymentRequirements" }
}
```

## Response

```json theme={null}
// 200
{ "success": true, "payer": "0xBuyer" }

// 400
{ "success": false, "error": "invalid_signature" }
```