Top 20 NuGet WebAPI Packages

Microsoft.AspNet.WebApi with Owin Bootstrapper for .NET web projects

API for running REST Request Collections.

Entity Framework integration for JSONAPI.NET, including an EntityFrameworkMaterializer and ApiController to highly automate building JSON API web services from EF6+ data models.

Last.fm SDK for modern .NET platforms.

Image API & processing for Azure Web Apps

Provides an endpoint for ASP.NET Web Api services to serve a JavaScript proxy and metadata

.NET Client for Jenkins build factory REST API.

Pwinty .NET Client Library - a C# .NET client for http://www.pwinty.com Pwinty is an easy to integrate photo printing API through which you can provide international photo and merchandise printing capabilities to your app.

(Unofficial) Twilio client library for ASP.NET Web API Projects. Compatible with Web API 2.

A helper package for calling RESTful Web API services

Contains CodeMediaTypeFormatter to output the WebApi object on the Help page as CSharp or VB code and SyndicationMediaTypeFormatter to use syndication in WebApi. Also enables WebApi tracing capabilities

Extension for Ninject providing integration with ASP.NET WebAPI 2 self host

A JsonConverter that serializes JSON, with data annotation meta-data embedded, so you can write validation logic on the server and render it on the client.

An implementation of HttpClient to shorthand WebApi requests and enabled common logging.

An easy way to integrate the social fabric that Yammer provides with your Windows 8 and Windows Phone 8 Applications. This API provides clients for OAuth'ing with yammer, posting activities and reading/posting messages in Yammer, as well as uploading files. This package is supports projects target...

Convert Html or Url to Pdf.

A simple component that can be used for MEF-based IoC functionality in MVC and WebApi projects.