I want to build a mobile app where I can input transactions offline. For this I'd like to auto-suggest existing payees.

But currently there is no way to directly get a list of all existing payees, except getting all transactions, gathering their payees and building such a list myself.

It would be nice to have an endpoint to just fetch a list of all payees. I assume this information is already stored somewhere, because when I enter a transaction in the web app, the payee is auto-suggested.