We'd be happy to assist you with any questions you have concerning use of our API's. I would need some more information from you about what specifically you are looking to do in order to provide you with more details. However, I would recommend getting started with our REST API Reference page, which has a number of How-To's and examples of various actions using our API's. We also have a Sample Code page which has C#, PHP, and ColdFusion sample packs that can help get you started.
View API documentation, code samples, get your API key.