Toggl is a free time tracking application. https://www.toggl.com/
It provides an API and this is a .net wrapper for that API!
There are 3 projects in the solution. 1 - TogglApi. This is a class library project containing the API. 2 - TogglApi.Web. An MVC 4 project just to play with the API. 3 - TogglApi.Tests. An MS Tests project that will contain coded tests for the API.
The solution has been created in VS 2012.
It supports both username/password and api token authentication.
As of 17.12.2013 I have just started the project, as part of an internal project to look at Toggl. So there really isn't much in the API at present, but I plan to build it out step by step and share the code here.
For the API I have used the well know REST library RESTSharp. http://restsharp.org/
I have used JSON C# Class Generator to help build the model classes. https://jsonclassgenerator.codeplex.com/