Top 20 NuGet webapi Packages

Simple Binding that enables dynamic filtering on your webapi via url on NetFramework
NHibernate support for TauCode Web API server.
TauCode Web API server support
EasyNetQ/RabbitMQ support for TauCode Web API server.
Xomega framework for building ASP.NET Core based Web API and apps.
This library contains the interface definitions that an implementation should use to create the storage layer for a FHIR server using the FHIR WebApi Facade
Not predictable ids library for ASP.NET Core APIs. For more information see http://github.com/Xabaril/AspNetCore.Hashids
Package to consume the SO WebAPI.
A web API response wrapper for .NET core, include Code, Message, Data and PagingInfo.
very easy to use httpclient for webapi. call remote methods like local methods. support async methods,custom httpclient. 让远程方法(api接口)像本地方法一样方便调用。支持异步、自定义httpclient。
ASP.NET Core Framework for uploading blob data to an API with the ability for partial uploads or fragments.
BJoin Application Webapi
Core functionality for AttributeRouting Web API packages.
A dependency resolver for Ninject and WebApi - based on work by Brad Wilson
AttributeRouting for self-hosted Web API lets you specify routes using attributes on your API controllers and actions.
An extensible ApiSelector for ASP.NET Web API
Owin Middleware to generate WebApi help pages without dependencies on MVC or System.Web. Great for self hosted WebApi. Razor is used for the documentation templates to make it easy to customize. Based on Yao's example http://goo.gl/0YMkKq
Helper library to create a Rest client from interface. For sample usage see https://github.com/sinch/nuget-webapiclient.
TypeScript CodeDOM has TypeScriptCodeProvider implementing ICodeGenerator which has been used in POCO2TS.exe and Strongly Typed Client API for Web API.
simple WebApi utility