Developers

Learn how to to use our API. If you are a Developer getting started on a new integration for your application or if you are extending an existing integration, this is where you need to be.

Developers

ABOUT THIS API

The Fortis Gateway (Zeamster) API is our legacy payment gateway API. This documentation site remains accessible for supporting existing integrations to the API.
If you are doing a new integration to Fortis please use our new Fortis.Tech payment platfom API. We will only certify new integrations to the Fortis.Tech API.

Merchants

Learn how to use our application.  If you are a Merchant looking to learn more about how to perform specific operations within the application, you'll find some helpful information here.

Merchants