This is currently work-in-progress. If mdns is running on your Green Bean Connect Kit you will see the service advertised.
OSX (shows specific service name):
dns-sd -L ChillHub-0ec5e4d0 _http._tcp
Replace ChillHub-0ec5e4d0 in the above example with what is printed on the label of your GBCK.
Linux (shows all services):
avahi-browse -t -r _http._tcp