To be fair I think there is still going to be a lot of appetite for a service like Teller once PSD2 launches to unify these individual bank APIs. They may not e

To be fair I think there is still going to be a lot of appetite for a service like Teller once PSD2 launches to unify these individual bank APIs. They may not even all work the same way. It'd be much better to have one entry point than develop for multiple different banks' implementation.