The NMI Payment Gateway offered by DowCommerce is very compatible with over a hundred different only shopping cart systems. The shopping carts that work with NMI grows every month. The integration with the carts vary from one cart to the next, however if you cart is on the approved cart list, rest assured than it can be integrated with the NMI Gateway. If you aren't sure if your shopping cart is compatible or not, please don't hesitate to contact us, and we will be happy to research the compatibility for your business website.
Squirrelcart PHP Shopping Cart software is a fully customizable, robust php shopping cart, designed with the advanced developer and web novice in mind.
Squirrel Cart connects to the payment gateway using the gateway emulator. For it to work properly, you must have username only enabled in the gateway or modify the module to send X_TRAN_KEY instead of X_PASSWORD.