There is no standard for data sharing between banks and fintechs which often results in screen scraping; this leads to concerns around data security and is also an inefficient way to gather data; the Financial Services Information Sharing and Analysis Center released an updated version of their recommendations around data sharing called the Durable Data API specification; this could eventually become the standard adopted by the industry; American Banker compares this to PSD2 in the UK and shares more about the new specification. Source