<i>> Exposing banking data, with sensible and secure authentication process can only be positive.</i><p>There's a pretty huge assumption embedded here. Sure, if there's actually "sensible and secure authentication", banking APIs are great. In the real world, though, nothing is actually very secure, breaches happen constantly, and I think there's a solid case to be made that we would be generally happier, wealthier, and more secure if banks were effectively information silos.