From KDE UserBase Wiki

Amarok is able to play music from an Ampache media server. If you want to install a server, see here for more information.

Ampache Client

Activate the Ampache service using Settings -> Configure Amarok -> Plugins. Click on the icon to open the configuration dialog.

Select Add Server:

Configure the service with the data entered on the server:

Now the Ampache service should appear in Media Sources -> Internet.