Looking to start a web API project and wondering which of the (two?) frameworks would allow me to go further in Richardson Maturity Model with the least amount friction.
Perhaps a link to a HOWTO?
You can apply many of the practices mentioned by Richardson in almost all the existing HTTP oriented frameworks like ASP.NET Web API, NancyFX or ServiceStack to name a few. Here is an article I wrote describing how to build hypermedia services with ASP.NET Web API