This is a fully functional payment gateway for Authorize.net. Supports recurring payments, free trials, and setup fees. Problems have been reported when trying to use this gateway on a Windows server running IIS (Linux and/or Apache are fine).

If you have an SSL certificate installed, and your order forms etc. are served over https, this gateway will communicate directly with authorize.net, and the customer will never leave your site. If you do not use SSL, the customer will be redirected to authorize.net's secure server for credit card detail capture and authorization (note: recurring payments cannot be taken unless you use SSL - authorize.net does not allow subscriptions to be set up by redirecting the customer to them).

Recurring payments have a maximum subscription length of 3 years (imposed by Authorize.net) - if you select to have the gateway update the order expiry date (there is a parameter that allows this), it will set the expiry to either the card expiry date, or 3 years' time - whichever comes first.

As this gateway uses both direct communication with the Payment Service Provider AND redirection to the PSP, it provides an excellent basis on which to build your own payment gateway.

This is an nBill extension. Use the extension installer in nBill to install it.