Getting Alternate Host Start URL Via API

Sure, but without a url that identifies that user specifically, and gives them the rights that their account has (as an alternate host), how can we have them get host rights in a chat?

We are trying to avoid:

  1. User having to explicitly register a login.
  2. User having to login to their zoom account

We currently:

  1. Create a licensed zoom user account for them via api.
  2. Add them as alternate hosts via api.
  3. Want to redirect them into the chat with rights (without them signing up/signing in/clicking an email link).

It is #3 that we are finding impossible. Is there a way to do this?

Thanks!