Built-in Authentication Services:
| Service | Description |
| DrupalAuthentication | The DrupalAuthentication service enables authentication with Drupal. |
| HttpAuthentication | The HttpAuthentication service enables authentication with standard HTTP authentication mechanism. |
| LdapAuthentication | The LdapDAuthentication service enables authentication with a corporate directory server using LDAP (e.g. Windows Active Directory, Novell eDirectory, OpenLDAP, etc.). |
| JoomlaAuthentication | The JoomlaAuthentication service enables authentication with Joomla. |
| WordPressAuthentication | The WordPressAuthentication service enables authentication with WordPress. |
Refer to the Deki Wiki authentication service spec for info on creating your own.
Refer to the Trusted Authentication guide for information on delegating authentication to the web server to support a large number of authentication techniques.