You can integrate with the Cardinity payment gateway by installing our modules for the most popular shopping carts (PrestaShop, Magento, WooCommerce, Drupal Commerce, Opencart, OXID Sales, Ubercart) or SDK libraries for custom e-commerce systems free of charge. You can find them together with a clear documentation on our website in the Developers menu. If you need assistance in integration, we are ready to help you.
Here you can find additional resources that may help you in the process and tell you more about payment processing.
If you haven't found answers to your questions here or need any further assistance, don't hesitate to contact us.