Top 20 NuGet httpclient Packages

Middleware facilitation for outbound HttpClient requests that is a mirror image of the functionality provided by ASP.Net Core (and OWIN) inbound request middleware.
Repository with Http Client
A port of Mono's implementation of the complete System.Net.Http assembly to .NET 3.5.
A *SIGNED* open source C# helper library for communication with the Zipabox controller from Zipato. It's a Portable Class Library (.NET 4.5, Windows Phone 8.1, Windows Phone Silverlight 8 and Windows 8.x).
A *SIGNED* open source C# helper library for communication with the EvoHome gateway of Honeywell. It's a Portable Class Library (.NET 4.5, Windows Phone 8.1, Windows Phone Silverlight 8 and Windows 8.x).
Provides transient error detection strategies for adding retry logic into your HttpClient calls and a UrlBuilder to help simplify building complex URLs.
A very simple HttpClient Pool implementation for .net/xamarin.
Rabbit Go based DingTalk SDK client.
This is a 3rd party .NET library for the Poloniex REST API
Integrates Faithlife.Tracing with HttpClient and HttpWebRequest
Transient fault handling for HttpClient based on Microsoft's implementation.
Enables automated tests with HTTP calls to avoid incurring the cost and instability of network traffic by recording a "live" test run and replaying it for subsequent test runs.
Easiest way to handle rest requests
A shared Xamarin wrapper binding for HttpClient
Wrapper for HttpClient with JSON serialization functionality
RestCall is to integrate with api calls easily
A lightweight, highly compatible .NET Standard library for simplifying the consumption of REST APIs
FakeHttpMessageHandler seamlessly fakes http request sent from System.Net.Http.HttpClient for purpose of unit testing code that previously could only be integration tested.
OpenCensus collector for calls to dependencies