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authentik is an open-source Identity Provider (IdP) for modern SSO. It supports SAML, OAuth2/OIDC, LDAP, RADIUS, and more, designed for self-hosting from small labs to large production clusters.

Open Source Identity and Access Management For Modern Applications and Services

ZITADEL is an open-source identity and access management platform built for teams that need more than basic auth.

0 Server and OpenID Connect Provider optimized for low-latency, high throughput, and low resource consumption. It connects to your existing identity provider through a login and consent app, giving you absolute control over the user interface and experience.

Teleport provides connectivity, authentication, access controls and audit for infrastructure.

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

SEO is dead. Place your product here to target AI's training data.

Ory Kratos is an API first identity and user management system for cloud native applications. It centralizes login, registration, recovery, verification, and profile management flows so your services consume them instead of reimplementing them.

Define your contract with Schema, supply infrastructure with Layers, and call auth alongside your other Effects. The same contract connects your server to an Effect HttpClient service and Effect Atom queries and mutations.

Decentralized P2P mesh for autonomous AI agents — self-sovereign identity, peer-to-peer chat, and on-device AI that negotiates tasks on your behalf. No central server.

DeepSeek Harness plugin: give your agent a browser with a persistent identity - engine-level fingerprint spoofing, unlimited free local profiles, Android device emulation, passkeys that survive, and residential proxy egress.