🔒 Crypto Checkout Widget

Accept crypto payments
on any website

Two script tags. No npm. No build step. Drop this on your Shopify store, custom site, or web app — your customers pay in USDT or BTC.

Try it live

Click the button to open the payment widget — this is exactly what your customers will see.

Uses a test API key — no real funds. Real orders require a live API key.

Embed code

Add these two script blocks to your checkout page. That's it.

<!-- Add to <head> or before </body> -->
<script src="https://bitkable.com/checkout.js"></script>

<script>
  // Call when customer clicks "Pay"
  BitkableCheckout.init({
    apiKey:   'YOUR_API_KEY',
    orderId:  'ORDER-1042',      // your internal order ID
    amount:   15.00,
    asset:    'USDT',            // or 'BTC'
    merchantName: 'Acme Store',  // optional
    onSuccess: (txData) => {
      // Payment confirmed — unlock content, redirect, etc.
      window.location.href = '/thank-you';
    },
    onExpired: () => {
      alert('Session expired. Please try again.');
    },
  });
</script>
Test vs Live: Use bk_test_… keys while building. Switch to your bk_live_… key before going live. Get your keys at API Keys.
⚡
Instant for Bitkable users
Customers with a Bitkable account pay from their balance in one click — zero fees.
🔗
On-chain fallback
Everyone else scans a QR code and sends from any wallet. Detected automatically.
🔔
Webhook confirmation
Your server receives a signed POST when payment is confirmed. Mark the order paid.

Ready to integrate?

View Full Integration Guide →