Financial Data Exchange | 5,477 followers on LinkedIn. Securing Financial Data Sharing in a Connected World | Financial Data Exchange (FDX) is championing the movement towards the future of open finance by unifying the financial industry around a common standard for the secure and convenient access of permissioned consumer and business financial data, the FDX API. FDX’s open membership structure allows all entities, regardless of size, to benefit and contribute to the FDX API via FDX working groups and task forces in a manner that crowdsources common industry problems and solutions and where every member’s vote is equal.