### API Keys for Authentication

Source: https://www.vexopay.com.br

Use 'ci' and 'cs' in the headers for API authentication. This is required to make requests to the Vexopay API.

```shell
curl -X POST https://api.vexopay.com/v1/pix/create \
  -H "Content-Type: application/json" \
  -H "ci: YOUR_CLIENT_ID" \
  -H "cs: YOUR_CLIENT_SECRET" \
  -d '{
    "amount": 1000,
    "description": "Pagamento de produto X",
    "external_id": "prod-x-12345"
  }'
```

--------------------------------

### Create PIX Payment

Source: https://www.vexopay.com.br

Generate a PIX payment charge with a single API call. The customer pays, a webhook confirms in real-time, and funds are credited to your balance.

```javascript
const response = await fetch('https://api.vexopay.com/v1/pix/create',
  {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'ci': 'YOUR_CLIENT_ID',
      'cs': 'YOUR_CLIENT_SECRET'
    },
    body: JSON.stringify({
      amount: 1000,
      description: 'Pagamento de produto X',
      external_id: 'prod-x-12345'
    })
  }
);
const data = await response.json();
```

--------------------------------

### Receive Payments via PIX or Crypto

Source: https://www.vexopay.com.br

Integrate Vexopay to receive payments in PIX or various cryptocurrencies like USDT, USDC, and BTC. The API provides real-time exchange rates.

```python
import requests

url = "https://api.vexopay.com/v1/pix/create"

payload = {
    "amount": 1000,
    "description": "Pagamento de produto X",
    "external_id": "prod-x-12345"
}
headers = {
    "Content-Type": "application/json",
    "ci": "YOUR_CLIENT_ID",
    "cs": "YOUR_CLIENT_SECRET"
}

response = requests.post(url, json=payload, headers=headers)
print(response.json())
```

--------------------------------

### Check Balance and Withdraw Funds

Source: https://www.vexopay.com.br

Access your account balance and initiate withdrawals via PIX, internal transfer, or to your wallet using the Vexopay API.

```php
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.vexopay.com/v1/pix/create",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'amount' => 1000,
    'description' => 'Pagamento de produto X',
    'external_id' => 'prod-x-12345'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "ci: YOUR_CLIENT_ID",
    "cs: YOUR_CLIENT_SECRET"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:";
  echo $err;
} else {
  echo $response;
}
```

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