I know this sounds more like a developer question, and more suitable for StackOverflow, but I'm hoping for a more theoretical answer because I'm completely new to APIs.

I'm trying to develop an Android application with Xamarin Studio. What I would like to do is display some data via an existing API (3taps) on the application's interface. It sounds pretty simple, but I have looked for C# / .NET tutorials all day and I can't find anything that doesn't start with creating the API first.

Can somebody please tell me what steps I need to take in order to do this? You can assume I know nothing about APIs, other than they allow you to access data. Thank you in advance.