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You can sign up for an N26 account via smartphone app and then use this (unofficial) python library https://github.com/femueller/python-n26

I fully agree with you though, the Open Banking outcome in reality almost looks like a joke. I only found the above as I was searching for a while to find a way to do this that didn't involve building my own screen scrapers to implement.

There are banking offerings in the UK with official APIs however you are looking at £200/month+ in costs.