Request an API Sandbox

Get started integrating Fattmerchant with your software!

Accept Payments on Your Platform

To get started with the Omni API, just fill out the form below. You’ll instantly be able to access your sandbox. We’ll also send you an email with your login credentials so you can log in anytime.

Start testing payments instantly:

  • If you already have an existing Omni account please use that email.
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