Our free Simple Checkout allows you to create Buy Now and Donate buttons for your website, providing a quick and easy integration method for connecting to the payment gateway. When your customers click the button, they'll be taken to an order page where they can select an item quantity and shipping method (if you offer more than one), and confirm their order or donation amount. Then they are taken to our secure, hosted payment form to enter their payment and shipping information.

Note: Simple Checkout allows your customers to purchase one item (any quantity) per order. If you expect to sell varying quantities of multiple items per order, you should integrate to the payment gateway using the Advanced Integration Method (AIM) or Server Integration Method (SIM). For additional information about SIM and AIM, including integration guides and sample code, please visit http://developer.authorize.net/.

To sign up for Simple Checkout:

1. Log into the Merchant Interface at: https://account.authorize.net/.
2. Click Tools from the main toolbar.
3. Click Simple Checkout from the main left side menu.
4. Please note the three requirements to sign up for the service and continue with the instructions located on this page.