Top 20 NuGet oauth2 Packages

OAuth 2.0 authorized HttpClient, friendly with HttpClientFactory
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.
External Security Provider for CloudFoundry - WCF
Generic client to use OpenID Connect over any Identity Server Solution, like WSO2, Keycloak, IdentityServer4.
ASP.NET Core Client Library for the PolicyServer Runtime API
.NET Client Library for PolicyServer Runtime API
ASP.NET Identity support for IdentityServer3
A Rest-only client for DSharpPlus.
OAuth 2.0 Authorizer
A simple authentication filter for WebApi that supports azure ad b2c
DbContexts and Identity entities for the administration of the IdentityServer4 and Asp.Net Core Identity
Middleware that enables an application to support Wechat's OAuth 2.0 authentication workflow.
The OAuth Login Component Core. https://oauthlogin.net/
Alipay (https://www.alipay.com/) OAuth Login Component. https://oauthlogin.net/
Baidu (https://www.baidu.com/) OAuth Login Component. https://oauthlogin.net/
Coding (https://coding.net/) OAuth Login Component. https://oauthlogin.net/
Gitee (https://gitee.com/) OAuth Login Component. https://oauthlogin.net/
Github (https://github.com/) OAuth Login Component. https://oauthlogin.net/
Gitlab (https://gitlab.com/) OAuth Login Component. https://oauthlogin.net/
Huawei (https://www.huawei.com/) OAuth Login Component. https://oauthlogin.net/