Determine who created user account?

Working with the /api/v1/users endpoint I can obtain a lot of useful information but I can’t seem to determine which account created a user, is there anyway to do this?

The User Types (/api/v1/meta/types/user) endpoint seems to be one way to do it but it’s early access, is their another way that is generally available?

The use case is monitoring an environment with delegated administration.

You may have to make it a custom field and making it required. I recommend making it an email field which will help you link accounts.

The System Log API or Event Types API should work for your use-case.