8 July 2025: After a week-long blackout period in view of the transition to the new UPC CMS, the public API has been turned on again. I'm not sure yet if it will provide case updates, but I expect it will. At least for the short-term future.
Opt-out information is up to date to at least 3 July 2025. I don't think that later opt outs and opt out withdrawals will be shown here. I'm looking for a work around.
New representative registrations will certainly not be visible here. That part of the API has been disabled permanently