While WCF is a unified framework for building service oriented applications, Web API is a light weight alternative to build RESTful services that can be consumed by many different clients.

But, in a roughly similar time frame as WCF 4.5, Microsoft is also rolling out the ASP.NET Web API, which gives you a very different way of building services by concentrating on the industry-standard ...

The Web API is compatible with the .NET Framework 4, so you can try it out right now (in fact, the Web API installer refuses to install on computers with .NET Framework 4.5). You might know the tool ...