API access to the IP Register database is based on submitting web
forms to the list_ops or
xlist_ops pages.
You need to download a special long-term cookie for API access:
The do_it form field corresponds to the action buttons on the web
page. You can use a GET request for read-only actions, but
read-write actions must use POST.
list_opsread-only actions:list_domainlist_lanlist_mzonelist_subnet
xlist_opsread-only actions:list_domainlist_mzone
list_opsandxlist_opsread-write actions:modifyregisterrenamerescind
Please consult the web page source code using your browser developer tools for details of the other form fields.
UIS internal API
There is a privileged IP Register API for UIS services that need to create cross-mzone CNAMEs, typically for web sites.