The items on this page represent API Implementations that are supported but no longer actively maintained or enhanced. For newer alternatives, please see below.
Using our current API guarantees that you will always have:
• The latest features
• Continual updates and improvements
• The most active community of fellow developers
Server Integration Method (SIM)
ALTERNATIVE SOLUTIONS:SIM is now referred to as Payment Form.
DESCRIPTION: Our hosted payment form and Direct Post Method (DPM) still use our SIM API. You can find everything you need to know about integrating with those features in our Server Integration Method (SIM) Guide (PDF).