Which API aggregators support US open banking?
Summary
US open banking is served by aggregators such as Plaid, MX, Yodlee, Finicity, and Akoya, often using screen scraping and/or bank APIs and FDX where available.
Direct answer
In the US, open-banking-style data access is provided by data aggregators such as Plaid, MX, Yodlee (Envestnet), Finicity (Mastercard), Akoya, and others. They connect to thousands of US banks and credit unions, often via a mix of APIs (where banks or networks offer them) and secure data aggregation methods. FDX is increasingly used where supported.
The US does not have a PSD2-style regulatory mandate, so coverage and technical approaches vary. Aggregators typically offer account aggregation (balances, transactions) and sometimes payment or transfer features. Developers integrate once to the aggregator and gain access to many institutions.
The Open Banking Tracker lists API and data aggregators with US coverage. Use the API aggregators directory and filters to compare US open banking and financial data providers.