How to add users from external database



I’m wondering if it’s possible to have users be added to an Airtable by using an existing external database. Currently we store member information and emails in a custom built database. I’d like to use this database to control the credentials of who can get into the Airtable, without having to add them manually.

Another option I can think of is to create an Airtable members add emails to and then they get added as users to the Airtable. Is there any way to do that automatically.

Thanks for any help