Top 20 NuGet oauth2 Packages

Access token requirement validation middleware for JWTs.
Allows you to perform user authentication via DigitalOcean, Facebook, Foursquare, GitHub, Google, Instagram, LinkedIn, MailRu, Odnoklassniki, Salesforce, Twitter, VK (Vkontakte), Windows Live, Yandex just in two method calls.
OpenId Connect authentication for legacy ASP.NET Web applications
MedOK® client connector
Provides OAuth2 login support for various external sites.
gRPC library compatible with .NET Core. Currently, the Grpc NuGet package doesn't support .NET Core. This package supplies a version which runs on .NET Core that is experimental and in-development.
Class library for application authentication with Google OAuth2 APIs.
Simple Oauth2 client.
Enables securing of WebAPIs using OAuth2 Client Credentials Grant - See
OAuth2 Authorizer helps get the access token for any REST API that implements 3-legged OAuth2 authorization.
Simple OAuth2 client for Facebook, Google and Live
Portable Client Library and HttpClient based OAuth library, including all platform(for PCL as .NET 4.0, .NET 4.5, Silverlight4, Silverlight5, Windows Phone 8.0, Windows Store Apps). This is an independently uploaded package and has source code from various sources aggregated under MIT License. Ori...
A lightweight library for OAuth2 authentication. Built inn support only for Facebook yet, but available functionality to add custom providers.
ASP.NET Core middleware that enables an application to support LinkedIn's OAuth 2.0 authentication workflow. 1. Examples: // LinkedIn login with app default profile fields             app.UseLinkedInAuthentication(new LinkedInOptions()             {                 AppId = Configuration["Authe...
OAuth2 password flow to be used with restsharp
Package Description
Oauth2.0 Client
Oauth2.0 Server
Simple OAuth2 client.