😱 Falsehoods Programmers Believe in

Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go.

Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.

ZITADEL - Identity infrastructure, simplified for you.

🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

8 Lessons, Kick-start Your Cybersecurity Learning.

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.

Pomerium is an identity and context-aware access proxy.

Kanidm: A simple, secure, and fast identity management platform

Orchestrate end-to-end encryption, cryptographic identities, mutual authentication, and authorization policies between distributed applications – at massive scale.

A generic, spec-compliant, thorough implementation of the OAuth request-signing logic

Dromara MaxKey 🗝️ SSO ,Leading-Edge IAM-IDaas(Identity and Access Management) Product , Under Apache-2.0 is free ，业界领先的IAM-IDaas身份管理和认证产品，遵循Apache-2.0开源免费，支持OAuth2.x、OpenID Connect、SAML2.0、CAS、JWT、SCIM等SSO标准协议，基于RBAC统一权限控制，实现用户生命周期管理，开源、安全、合规、自主可控。

The SPIFFE Project

The most flexible and standards-compliant OpenID Connect and OAuth 2.x framework for ASP.NET Core

Microsoft Authentication Library (MSAL) for .NET

Identity for developers on the web.

Infra provides authentication and access management to servers and Kubernetes clusters.

Open source Auth0/Clerk/Firebase alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps

The Verida SDK provides several SDKs to interact with the Verida Network

一账通是一款开源的统一身份认证授权管理解决方案，支持多种标准协议(LDAP, OAuth2, SAML, OpenID)，细粒度权限控制，完整的WEB管理功能，钉钉、企业微信集成等，QQ group: 167885406