Top 20 NuGet client Packages

WebAPIDoodle.Http is a library which provides more features over System.Net.Http
RavenDB 'Temporal Versioning' bundle client. Allows for tracking of changes to entities at different effective dates.
Plugin for RavenDB that extracts text from attachments so they can be indexed.
PostageApp API client library for .NET 3.5+
-> Works on top of new and existing Web Forms applications, allowing the creation of mixed server and client-side server controls using Web standards. -> State-of-the-art, exclusive way of working with CSS and JavaScript dependencies! -> Light-weight client-side JavaScript dependencies...
A simple client for Atlassian JIRA service REST API
A client-side library for .NET that extends WebSync to provide optimizations for high network traffic scenarios. (Community Edition)
Hypertable for Objects (x64)
Client's assets for Framerizr.
Contributed addons for the RavenDB Client Library
Strong typed HTTP client with provider using. The main goal of the library is to minimize plumbing code to bare minimum.
C# Static Typed Client wrapper for Pingdom APIs v2.0
SteamSharp is a portable class library for use in .NET 4.5+ projects. Due to its portability, this library can be used in Windows Store (8 or higher) and Windows Phone (8 or higher) applications (among others).
A client-side library for .NET that provides real-time HTTP push (comet/reverse Ajax). (On-Demand Edition)
A client-side library for .NET that extends WebSync to provide optimizations for high network traffic scenarios. (On-Demand Edition)
A client-side library for .NET that extends WebSync to provide notifications when clients subscribe to or unsubscribe from a channel. (On-Demand Edition)
A simple async REST client
A Breeze DataServiceAdapter for SharePoint 2010 solutions and 2013 apps