Tcladdressbook is a Tcl extension defining a new Tcl command called addressbook which lets you manipulate the OSX AddressBook. This extension must be used with Tcl on Mac platforms with OS X System.
The addressbook command has more thant 20 subcommands such as addressbook create, addressbook record, addressbook set etc. used to invoke the various actions to perform.
For a list of all features in version 1.1, see the notes here