identity

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.

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.

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

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