Open APIs: A Banker's Guide

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Application programming interfaces allow software programs to talk to each other. They are a potential solution to the current industry standoff over sharing of bank customer data with aggregation sites; in the long term, they could transform how banking is done, making customer relationships less sticky but opening up new revenue models for financial institutions. Drawing on a proprietary survey of banking executives, this paper explains where the industry sees the most potential for open APIs to enable innovation and improve security, the degree to which banks have adopted the technology and the reasons many remain reluctant to do so.