MIT

authentik

Self-hosted identity provider with flexible authentication flows

An open-source identity provider for modern SSO, built for self-hosting and extensible policy-driven flows.

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In depth

What it is

authentik is an open-source identity provider for modern SSO, built for self-hosting and extensible policy-driven flows.

Key features

  • OIDC/SAML - Standards-based SSO for applications.
  • Flows - Configurable authentication and enrollment flows.
  • Directory integration - LDAP and provisioning integrations (deployment-dependent).
  • Outposts - Outpost components for proxy-style integrations.

Strengths

  • OIDC/SAML - Standards-based SSO for applications.
  • Flows - Configurable authentication and enrollment flows.
  • Directory integration - LDAP and provisioning integrations (deployment-dependent).

Trade-offs

  • Complexity - Flexible flow model increases configuration complexity.
  • Operations - Self-hosting adds upgrades, backups, and monitoring.
  • Integration variance - App integrations vary by protocol and connector depth.

Pricing

Open-source software. Direct license cost is zero; costs are typically infrastructure, operations, and optional paid support or hosting.

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