@murgero Let me know if you need something from the Cloudron side. I guess it can be a separate web app that can be installed at say register.mydomain.com. It can then take an access token (this view is currently "hidden". access it as my.domain.com/#/tokens) and a Cloudron end point. You should then be able to make calls to create user using https://cloudron.io/documentation/api/#/paths/~1users/post .