The WealthEngine C# SDK by Zach Girod calls the WealthEngine REST API which provides a net worth platform for sales and fundraising to integrate with existing applications. It was built in Visual Studio 12.0.
Here is a follow up interview with Raj Kadam, CEO of Viralheat API whom we have interviewed on the Sentiment Analysis API here. In 2012, Viralheat had about 30 billion calls over all its' APIs. Viralheat just announced a new API called Human Intent API.