Why is it not possible to create a User from backend API

[underhill.dan]

Why is it not possible (as far as I can see) to create a new User account from a backend API workflow?

Basic example: Stripe webhook fires when a payment is successful → Create a new user account.

If I’m unable to add a new User based on that, then what is the workaround?

Thanks

[JohnMark]

Hello @underhill.dan

or