moowebbrowser.py is a CGI script that provides a web-based interface for surfing a Moo database.
Browse a live demo.
By default one can only browse +r objects, verbs and properties in the database. If you want to be able to browse the -r data as well, one just needs to apply http authentication to the script. Under Apache, this means creating a .htaccess file -- there are dozens of tutorials for this.
Note that the http authentication is entirely your own creation, there is no tie-in with the usernames and passwords stored in the Moo database (CGI scripts are never informed of the http password, so a tie-in is impossible).
You might wish to install two copies of the Python script, one without authentication for the public, one with authentication for the wizards.