- Synapse - Turn your SynapseDB into a self-contained Identity store
- LDAP-based - Any LDAP-based product like Active Directory, Samba, NetIQ, OpenLDAP
- SQL Databases - Most common databases like MariaDB, MySQL, PostgreSQL, SQLite
- Website / Web service / Web app - Arbitrary REST endpoints
- Executables - Run arbitrary executables with configurable stdin, arguments, environment and stdout
- Wordpress - Connect your Wordpress-powered website DB
- Google Firebase - Use your Firebase users (with experimental SSO support!)