You're missing part of my point. Here in Denmark it supposedly already is a lega...

You're missing part of my point. Here in Denmark it supposedly already is a legal requirement. The point is that the legal obligation means nothing, because the banks are so entangled with the government that no actual policing is done.

Here's the api documentation of 25 Danish banks, including the one I'm a part of: https://apiportal.prod.bec.dk/openbanking/sandbox/product/17...