Janssen Server

docs.jans.io · checked 5 Oct 2026

#19 · OAuth Server Software

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How it plugs in

—Public API

NoOpen source

YesFree tier

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Janssen Server is an authentication and authorization server that exposes identity features through standards based endpoints.

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Runs on

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Facts

Website: docs.jans.io
Price: Free tier
Free trial: No
Administration: Admins can configure Janssen through command-line tools, curl, or its text user interface, and the Config API is used by configuration tools to write settings to the database.
Authentication: Documented out-of-box MFA options include FIDO, passkeys, OATH OTP, and SMS via Twilio or SMPP.
Caching: The documented cache options are in-memory, Redis, and Memcached; in-memory is described as suitable only for a single-node VM deployment.
Cloud support: The documentation describes native Kubernetes support, autoscaling, service-mesh compatibility, and cloud-agnostic deployment options.
Configuration tools: Administrators can configure Janssen using the Config API, command line tools, or a text user interface.
Core capabilities: Its Auth Server supports OAuth 2.0 and OpenID Connect, multi-factor authentication, session management, directory integration, and audit logging.
Databases: The components overview lists MySQL and Postgres as supported persistence options.
Deployment: The documentation covers Kubernetes, VM cluster, and single VM deployment options.
Development deployment limit: The Janssen documentation labels its Docker demo setup for testing and development only.
Extensibility: The platform provides interception scripts, custom plugins, REST APIs, and Agama for designing authentication flows and integrating third-party services.
Founded: 2020
Integrations: The documentation includes an integration guide covering configuration of third party software and SaaS providers.

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