The UK’s Payment Services Directive 2 (PSD2) has the potential to significantly change banking for consumers with access to open APIs; the article notes that banks that have only done the minimum to comply with PSD2 may run into issues if we ever see a PSD3; fully embracing PSD2 may save headaches for banks down the road; the trend of open APIs and data sharing is likely to make its way to the US; Japan is also leading the way in this area having explored domestic ACH on blockchain. Source
