Can I give a stranger access to my account?

Is it possible to automatically share a bearer token with someone for my account (without sharing my API creds)?

I’ve spoken to a few peeps that want to demo their solution but keep their data private. So was thinking maybe I can create another account and let them use that to do.

The only issue is the API creds are for a whole profile not a specific account.

So I was wondering if I create that account and share the account ID and the have a secure way to let a stranger generate a bearer token that could be a way of creating a sort of “demo” account.

Any ideas how to do this?