Top 20 NuGet oauth Packages

OpenID Connect & OAuth 2.0 client library
A set of e-mail components which implement IMAP, SMTP, POP3, Exchange Web Services, SSL/TLS support, parsing and building MIME and S/MIME messages, Outlook .MSG and .PST conversions, mail merge over database, OAuth 2.0, DNS MX lookup, e-mail address validation, parsing winmail.dat, bounced messages ...
ASP.NET Core security provider enabling Apple authentication.
ASP.NET Core authentication handler for validating tokens using OAuth 2.0 introspection
ASP.NET Core security middleware enabling LinkedIn authentication.
Adds additional OAuth providers for OWIN to use with ASP.NET
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
EntityFramework persistence layer for IdentityServer4
EntityFramework persistence layer for IdentityServer4
ASP.NET Core Identity Integration for IdentityServer4
Storage interfaces and models for IdentityServer4
OpenID Connect & OAuth 2.0 client library for ASP.NET Core
Package Description
Adds additional OAuth providers for OWIN to use with ASP.NET
RFC8252 compliant and certified OpenID Connect and OAuth 2.0 client library for native applications
ASP.NET Core authentication handler to validate JWT and reference tokens from IdentityServer4
Official Okta middleware for ASP.NET 4.5+. Easily add authentication and authorization to ASP.NET applications.
Provides an HttpClient DelegatingHandler for OAuth 2.0 / OpenID Connect authentication. This can also be used independently of the other TypedRest 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
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core