Top 20 NuGet oauth2 Packages

Client helper for OAuth2 2-legged flows with client secret and JWT client assertion support and token caching
OAuth 2.0 authorized HttpClient, friendly with HttpClientFactory
Utility to help with OAuth2 Authentication for HttpClient.
A DotNetOpenAuth client for logging in to Facebook using OAuth2.
A simple client-only OAuth2 library for .NET. This library is designed to be used with minimal implementation by the user, in environments that are not hosted on a web server.
Delegation Handler based Authentication Framework for ASP.NET Web API v2.
A Method for Signing HTTP Requests for OAuth
Marten persistence layer for IdentityServer4 using postgresql as a document store
High-performance JWT library for OAuth2. Provides Client Assertion primitives.
Provides a generic OAuth2 handler to be used within System.Net.Http.HttpClient instances, enabling OAuth2 authorization for any requests made through the aforementionet HTTP client. Inspired on:
Провайдер аутентификации ЕСИА для ASP.NET Core
Utility to help with OAuth2 Authentication for HttpClient.
This package is now rebranded to: SimpleAuthentication.Core
This library contains the OAuth 2.0 authenticators and clients for RestSharp.Portable, which is a port of the OAuth 2.0 authenticators from the original RestSharp project. The OAuth 2.0 clients are a port from the OAuth2 project made by Constantin Titarenko and others. Supported Platforms: - .NET S...
OAuth 2.0 Authorizer
An MVC application that demonstrates the Box OAuth2 process utilizing the Box v2 SDK.
Entity Framework 7 persistence layer for IdentityServer4 -Deprecated- Use TwentyTwenty.IdentityServer4.EntityFrameworkCore
Entity Framework Persistence Layer for the IdentityServer3 WS-Federation Plugin
ASP.NET Core External Security Provider for CloudFoundry
OpenID Connect Client Library for Native Applications