Wolfram Alpha .Net SDK by Ian Qvist

Wolfram Alpha .Net SDK by Ian Qvist is an implementation that uses .NET/C#. The Wolfram Alpha API focuses on high level computing, and this SDK supports options such as assumptions and timings for symbolical quantities.

U.S. Department of Labor Quarry .NET SDK by U.S. Department of Labor

The U.S. Department of Labor Quarry .NET SDK by U.S. Department of Labor allows developers to integrate the DOL's APIs into their .NET applications.

API.AI .NET SDK by API.AI

The API.AI .NET SDK by API.AI aims to simplify API integration features of natural language processing into new applications. Resources include a programming interface to make text and voice requests to the API.AI. Additional resources could be useful to add usages to a module, add field to a class, and initialize object with Keys. See how JSON.NET helped with parsing implementation at http://www.newtonsoft.com/json

ConstantContact .NET SDK by Constant Contact

Official ConstantContact .NET SDK. It provides installation, documentation, and usage. To install, download and build the CTCTWrapper project. Next, place developers' credentials. To use, include namespaces, obtain an access token, create a service object, and use the SDK. Authored by Brian Vysocky.