Top 20 NuGet oauth2 Packages

Adds .NET Framework OAuth2 Providers for use in ServiceStack Web and REST Services. Includes built-in support for Google and LinkedIn OAuth2 providers. More Info on Auth Providers: https://docs.servicestack.net/authentication-and-authorization
IdentityServer is a framework and a hostable component that allows implementing single sign-on and access control for modern web applications and APIs using protocols like OpenID Connect and OAuth2. It supports a wide range of clients like mobile, web, SPAs and desktop applications and is extensible...
Business Logic layer for the administration of the Asp.Net Core Identity and IdentityServer4
Business Logic layer for the administration of the IdentityServer4
Helper library for identity & access control in .NET 4.0/WIF and .NET 4.5 (includes MVC4 and Web API support).
IPP .NET SDK for OAuth2 is a set of .NET classes that make it easier to make Oauth2 calls. Refer more details on the lib dependencies here- .Net Framework 4.6.1 Newtonsoft.Json>=12.0.1 Microsoft.Net.Compilers 2.10.0
Entity Framework layer for the administration of the IdentityServer4
Provides various authenticators for user authentication in Crosslight apps, including HttpBasic, NTLM, OAuth, OAuth2, and WebAPI authenticator.
MongoDB persistence layer for IdentityServer4
Shared Business Logic layer for the administration of the IdentityServer4 and Asp.Net Core Identity
Entity Framework-based persistence layer for IdentityServer3
ASP.NET Core Middleware for validating scope claims
Bit.IdentityServer
OpenID Connect and OAuth 2.0 Testing-Framework for ASP.NET Core and IdentityServer4
IPP .NET SDK for OAuth2 is a set of .NET classes that make it easier to make Oauth2 calls. Refer more details on the lib dependencies here- Newtonsoft.Json>=12.0.1 Microsoft.Extensions.Configuration 2.2.0 Microsoft.Extensions.Configuration.Abstractions 2.2.0 Microsoft.Extensions.Configuration.Json ...
Templates for the administration of the IdentityServer4 and Asp.Net Core Identity
ASP.NET Core External Security Provider for CloudFoundry
Client library of Thinktecture.IdentityModel. Includes OAuth2 and OpenID Connect client and helpers for parsing token and authorize responses, Epoch Time helpers, extensions methods for HttpClient.
A parser of WWW-Authenticate challenge headers.
Used with SimpleAuthentication, provides automated configuration for ASP.NET Mvc projects.