Attempting to create a client for API access at https://community.developer.battle.net/access/clients/create returns a 500 INTERNAL_SERVER_ERROR message.
It’s been broken for several weeks.
Related topics:
https://us.forums.blizzard.com/en/blizzard/t/500-internal-sever-error-when-creating-an-app/55486
https://us.forums.blizzard.com/en/blizzard/t/500-response-when-creating-new-api-client/56554
https://us.forums.blizzard.com/en/blizzard/t/505-error-when-creating-a-client/54661