First off, go and sign up to get an API key so that you can use the service. Second, take a look at the documentation on the methods available. After that, it is as simple as making a GET/POST request (w/ SOAP if you prefer) in the correct format for the method.

I’ve left all the API Key’s to run with unlimited requests. However, if the this gets popular I will obviously need to throttle those that are beating heavily on the server. So it is probably not a generally good idea to put your API key in your JS source, even though the service won’t care either way. Doing so would give the ability for anyone to make requests against the server in your name with full access to your channels, etc.

Let me know your thoughts!

Update: I’ve updated the service links to a new C# web service.