Is it possible to add authors automatically?

Hi guys,

The new Ghost 4 update is marvelous and it’s great to finally have members outta beta.

I’m just having a little question about authors.

Is it possible to invite authors automatically? Like they can register on a form somewhere and then the author/contributor role invite is automatically sent to them?

Zapier doesn’t support this, I started with checking that. So, what are the ways to achieve this?

Thanks in advance to the Ghost team or the amazing community here for helping out!