Authorize.Net is a payment gateway service provider allowing merchants to accept credit card and electronic checks payments through their websites.  Authorize.Net is used by over 195,000 merchants making it the largest payment gateway provider.

Authorize.Net Gateway System

Authorize.Net offers two methods of payment integration -  Simple Integration Method (SIM) and Advanced Integration Method (AIM).


SIM (Server Integration Method)
Authorize.Net SIM integration is a customizable hosted solution that uses a secure payment form hosted on Authorize.Net servers.

• No SSL Certificate needed - does not require the merchant to have an SSL certificate installed
• Secure - uses 128 bit data encryption and digital fingerprints
• Customizable - limited customization over the look and feel of the payment, receipt pages

AIM (Advanced Integration Method)
Authorize.Net AIM integration is a completely customizable and secure solution to interact with Authorize.Net servers. (Recommended)

• More secure - uses 128 bit data encryption, and transaction key authentication for ultimate security
• Full control - allows full customization of look and feel and total control throughout the payment process
• Better integration - allows a better integration with custom shopping cart and other web platforms using an online billing solution
• More options - uses advanced features designed for AIM payment forms

ARB (Automated Recurring Billing)
Authorize.Net ARB integration is one of the best online tools to allow billing of clients on a periodic basis without having to re-enter billing information and is completely automatic.

This service creates a subscription for each customer, based on individual billing information, allowing creation of periodic intervals and billing-end dates. Integration with your website can be designed so customers can select their preferred payment schedule based on your pre-configured selections.