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Enterprisey APIs with adoptionYour conflation of "bad" with "enterprisey" is unfortunate. Also, is it really adoption if different banks only support specific features/versions?
> If FinTS is too difficult to implement, how come they are not offering something simpler?
Well banks aren't really in the business of APIs, are they? Nobody is graduating #2 in their class at Stanford with a CS degree and going to work for a bank as a web developer.