I created a C# wrapper for the SenseApi (the one that the Web Client uses) that you can use in your own C# projects. You can find it as a Nuget package (SenseApi) in Visual Studio. You can also find the source code here: https://github.com/Frankwin/SenseApiWrapper
Feel free to submit pull requests for any contributions you want to make to the project. I’ll try to continue to update it as best as I can if new things happen with the API.