> ## 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 /settle

> Settle the payment by executing on-chain transfer

## Request

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

## Response

```json theme={null}
// 200
{ "success": true, "transactionHash": "0x..." }

// 400/500
{ "success": false, "error": "settlement_failed" }
```