PHP SDK

Set it up in 4 steps

1. 1

   Copy Cryptain.php into your project.

2. 2

   Create an API key in Cryptain (Stores → your store).

3. 3

   Create an invoice and redirect the customer to its checkout_url.

4. 4

   Verify webhooks with Cryptain::verifyWebhook() before fulfilling the order.

require 'Cryptain.php';
$c = new Cryptain('https://cryptain.net', 'pk_...', 'sk_...');
$invoice = $c->createInvoice(['amount' => '25.00', 'currency' => 'USD', 'order_id' => '1001']);
header('Location: ' . $invoice['checkout_url']);