Server side integration

Learn how to integrate your payments using the server-side integration options.

Unzer payment infrastructure is exposed through RESTful API (Unzer API). On the server side you can integrate your online solution with Unzer using direct API calls, PHP SDK and Java SDK. To familiarize yourself with the general concepts, first read the Unzer API basics section.

API migration

Read to understand the principles of the new Unzer API together with key differences between the old and new approach for a smooth transition to the new API.

Unzer API basics

The Unzer API connects your business to the Unzer payment infrastructure.

Read More
Direct API integration

Connect your online shop to Unzer payment system using direct API calls.

Read More
Java SDK Integration

Connect your online shop to Unzer payment system using Java SDK.

Read More
PHP SDK integration

Connect your online shop to Unzer payment system using PHP SDK.

Read More