Are you looking to use’s SIM integration? Look no further. This plugin allows you to easily integrate the Payment Gateway into your WordPress e-Commerce web store.

What is SIM?, one of the most popular and respected merchant gateways in the world, offers multiple ways to utilize their gateways. SIM stands for Server Integration Method.

SIM uses scripting techniques to authenticate transactions with a unique transaction fingerprint.

The Authorize.Net Payment Gateway can handle all the steps in the secure transaction process – payment data collection, data submission and the response to the customer – while keeping Authorize.Net virtually transparent.

  • Payment gateway hosted payment form employs 128-bit SSL data encryption.
  • Digital fingerprints enhance security, providing multiple layers of authentication.
  • Customize the look and feel of the payment gateway hosted payment form and/or receipt page.
Who should use SIM?

SIM provides a customizable, secure hosted payment form to make integration easy for Web merchants that do not have an SSL certificate.

What is the difference between AIM and SIM?

AIM (Advanced Integration Method) and SIM differ in a few ways.

AIM can be used on your own website, SIM is processed on, ensuring a secure process (important for PCI compliance). AIM can be accessed via mobile, SIM can not. For AIM, a SSL is required. For SIM, it is not (because the processing is handled externally on At a basic level, AIM offers more control, SIM offers more security. For more on these choices, see’s comparison. 

AIM is offered standard as part of WP e-Commerce Gold Cart.

For more information on, check out their site at