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Backend Integration

Create payments server-side for maximum security. Secret keys never leave your server.

Flow

  1. Customer clicks Pay on your site
  2. Your backend calls RazCrypto API with secret key
  3. You receive checkout_page URL
  4. You redirect customer to checkout_page
  5. Customer pays → webhook fires to your server

Backend Examples

<?php
$ch = curl_init('https://razcryptogateway.com/api/v2/payments/create');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'X-Gateway-Id: ' . getenv('RAZ_PUBLIC_KEY'),
        'X-Secret-Key: ' . getenv('RAZ_SECRET_KEY')
    ],
    CURLOPT_POSTFIELDS => json_encode([
        'amount' => 10.50,
        'chain' => 'BSC',
        'currency' => 'USDT',
        'email' => $customerEmail,
        'callback_url' => 'https://yoursite.com/webhook',
        'custom_data' => ['order_id' => $orderId]
    ])
]);
$result = json_decode(curl_exec($ch), true);
header('Location: ' . $result['checkout_page']);
?>
<?php
use Illuminate\Support\Facades\Http;

$response = Http::withHeaders([
    'X-Gateway-Id' => config('services.razcrypto.public_key'),
    'X-Secret-Key' => config('services.razcrypto.secret_key'),
])->post('https://razcryptogateway.com/api/v2/payments/create', [
    'amount' => 10.50,
    'chain' => 'BSC',
    'currency' => 'USDT',
    'email' => $request->email,
    'callback_url' => route('webhook.razcrypto'),
    'custom_data' => ['order_id' => $order->id],
]);

return redirect($response->json('checkout_page'));
?>
const axios = require('axios');

app.post('/api/create-payment', async (req, res) => {
    const response = await axios.post(
        'https://razcryptogateway.com/api/v2/payments/create',
        {
            amount: req.body.amount,
            chain: 'BSC',
            currency: 'USDT',
            email: req.body.email,
            callback_url: 'https://yoursite.com/webhook',
            custom_data: { order_id: req.body.orderId }
        },
        {
            headers: {
                'X-Gateway-Id': process.env.RAZ_PUBLIC_KEY,
                'X-Secret-Key': process.env.RAZ_SECRET_KEY
            }
        }
    );
    res.json({ checkout_page: response.data.checkout_page });
});
import requests, os

def create_payment(amount, email, order_id):
    response = requests.post(
        'https://razcryptogateway.com/api/v2/payments/create',
        headers={
            'X-Gateway-Id': os.getenv('RAZ_PUBLIC_KEY'),
            'X-Secret-Key': os.getenv('RAZ_SECRET_KEY'),
            'Content-Type': 'application/json'
        },
        json={
            'amount': amount,
            'chain': 'BSC',
            'currency': 'USDT',
            'email': email,
            'callback_url': 'https://yoursite.com/webhook',
            'custom_data': {'order_id': order_id}
        }
    )
    return response.json()['checkout_page']
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