Top 20 NuGet oauth Packages

OAuth Token Client Library.
Provides a means to store and retrieve OAuth access and refresh tokens to/from a configurable entity framework database.
Oauth 1a implementation for Microsoft.Extensions.Http.
IdentityServer4 key management via Azure Key Vault certificates.
Extensions.SwashbuckleWithOauth
OAuth 1.0 authorized HttpClient, friendly with HttpClientFactory
OAuth Library based on Reactive Extensions for .NET Framework 4 Client Profile and Silverlight4.
Provides an OAuth2 Client for authenticating with GitHub. Hooks into ASP.NET MVC 4 via DotNetOpenAuth.
This OAuth 2 is a simple login frame with integration of Facebook, Google, Windows Live,Paypal login function. Just get the user information, the user log in is integrated into application. Support setting server agent.
Provider Agnostic OAuth authentication with External Providers
Database interfaces and entities used by Glipho.OAuth.Providers.
Extension to DotNetOpenAuth adding more social networks
Extensions created to support native authentication and authorization oAuth extensions.
A simplified interface for dealing with Evernote via OAuth (Asynchronously or Synchronously)
A DotNetOpenAuth client for logging in to OSChina using OAuth2.
Additional WalletOne OAuth2 provider for Katana (OWIN).
A C# .NET SDK for Uber's API
Allows you to perform user authentication via DigitalOcean, Facebook, Foursquare, GitHub, Google, Instagram, LinkedIn, MailRu, Odnoklassniki, Salesforce, Twitter, VK (Vkontakte), Windows Live, Yandex,QQ,Weibo,Baidu,JD,Kaixin001,360,renren,taobao just in two method calls.
The TradeMe OAuth provider OWIN middleware
Simple wrapper of the Uber API