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Best Banking APIs and Account Aggregation Infrastructure

Venkatraman Chandrasekaran's profile

By Venkatraman Chandrasekaran

Last updated on Feb 27, 2026

Banking APIs and Account Aggregation infrastructure form the connective tissue between legacy financial institutions and modern digital applications, enabling secure programmatic access to checking account balances, transaction histories, and identity verification across thousands of financial institutions. These interfaces allow developers to build automated budgeting tools, lending decision engines, and wealth management platforms without maintaining direct integrations with disparate banking cores or navigating complex legacy protocols. By abstracting the complexity of credential management, multi-factor authentication flows, and data normalization across credit unions, neobanks, and major commercial banks, these APIs reduce onboarding friction while maintaining rigorous security standards required for financial data exchange.

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