We have listened closely to developer feedback about our API documentation and as a result, we have developed a new online guide for XML API reference information. This new guide is currently in a beta phase. This guide is designed to reduce the amount of time that you spend researching the API and enable you to start writing code as quickly as possible. The new format includes request and response information, as well as code samples and even a console that allows you to submit requests to our sandbox server in real-time. XML services include transaction processing, Automated Recurring Billing (ARB), Customer Information Manager (CIM), and transaction detail reporting.
http://developer.authorize.net/api/reference
We encourage you to experience this new guide. There is a feedback link where you can share with us your impression of the new format, or you can join the community discussion so that we can continue to improve it and provide you with the best experience possible.
