RedFin Holdings is the most advanced solution in the industry for processing credit cards, debit cards, and check services. This SDK provides you with a fast, easy, reliable way to authorize credit card, ATM/debit card, and check transactions on your application.
Click below to download the RedFin Holdings Software Development Kit Manual and start putting RedFin Holdings to work for you!
(you may need to right-click and select "save link as..." to download the Guide to your computer.)
Here is sample code, in a few of the most popular programming languages, showing you just how easy it is to integrate RedFin Holdings in your applications: