Top 20 NuGet api Packages

Provides a quick access to Foursquare API
A library of core helpers, extensions, constants, enums and other useful things for .NET Web projects.
The scenarioo C# Writer Library helps you to produce user scenario documentations out of your UI tests, such that your project’s stakeholders can browse it through the Scenarioo webapplication. More information see http://www.scenarioo.org Details about using the scenarioo C# API see https://github....
An async Spotify Web API wrapper for .NET
Library that wraps the SC4Devotion LEX API, so that you don't have to worry about the technicalities
Provides additional classes to enhance OrmLite functionality, including transient fault handling and configuration helpers. Enables attribute-less configuration of OrmLite.
A C# .NET SDK for Uber's API
A OWIN server for the Azure Service Bus Relay
Socrata Open Data API client library targeting .NET 4.5 and above.
A simple async wrapper for the Vine API.
GlobeLabs API for .NET 4.5 is a simple wrapper for the GlobeLabs API (beta) that exposes functionalities in a simplified manner possible.
Web API 2 library allowing you to define strongly typed direct routes.
Wargaming Public API for .NET
Utilize DataAnnotations on your ASP.Net Web API models and return your own complex validation models, flattened models or default model state models.
Simple to use library for returning custom / vendor media type headers when using Web API. Register types explicitly or by convention with overrides, excludes and required custom interface options. eg. application/vnd.yoursite.customer-v1+json
.NET Utils Framework
This is a simple class for spinning up an ASP.Net Web API self host. I use it regularly within my test code.
A library of core helpers, extensions, constants, enums and other useful things for Sitecore CMS projects.
Hacker News has partnered with Firebase to create a real API. This is a .NET client to that API. With this API, you can get top stories, lookup items, and lookup profiles.