Quick Start

curl -X POST https://api.cwmpay.in/api/merchant/{payment}/create \ // ({payment} here can be either "inr" or "crypto")
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
    "amount": 499,
    "currency": "INR",
    "webhookUrl": "https://yoursite.com/webhook"
  }'

{
  "success": true,
  "message": "Payment created successfully!",
  "data": {
    "orderId": "CWMPay_1784798312415_04575dc339d7",
    "amount": 499,
    "finalAmount": 499.37,
    "currency": "INR",
    "upiString": "upi://pay?pa=...&am=499.37",
    "qrCode": "https://qr-code-url....",
    "status": "pending",
    "expiresAt": 1784798913288
  }
}

// Display QR code
const img = document.createElement('img');
img.src = response.data.qrCode;
document.body.appendChild(img);

// Mobile — open UPI app directly
const link = document.createElement('a');
link.href = response.data.upiString;
link.innerText = 'Pay with UPI';
document.body.appendChild(link);

curl -X POST https://api.cwmpay.in/api/merchant/{payment}/verify \ //  ({payment} here can be either "inr" or "crypto")
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
    "orderId": "CWMPay_1784798312415_04575dc339d7",
    "currency": "INR",
    "utr": "123456789012"
  }'

{
  "success": true,
  "message": "Payment verification successful!",
  "data": {
    "amount": 499,
    "utr": "123456789012",
    "status": "success",
    "completedAt": 1784798913288,
    "date": "27/05/2026",
    "time": "11:45:00 AM"
  }
}

{
  "event": "payment.success",
  "timestamp": 1784798913288,
  "data": {
    "orderId": "CWMPay_1784798312415_04575dc339d7",
    "amount": 499,
    "currency": "inr",
    "status": "success",
    "utr": "123456789012"
  }
}