FDX (Financial Data Exchange) is a US industry body that defines technical and security standards for sharing consumer and business financial data via APIs. FDX standards are used by many US banks, data aggregators, and fintechs to provide consent-based access to account and transaction data—similar in spirit to open banking in the UK and EU.

Unlike PSD2 in Europe, the US does not have a single regulatory mandate requiring banks to offer APIs. FDX fills part of that gap by providing a common API specification (FDX API) and security model so that data can be shared in a standardized way when data holders and aggregators adopt it.

The Open Banking Tracker tracks FDX adoption, US open banking initiatives, and API aggregators that support US banks. See our Data Standards and Open Banking API pages for more context.