Monetizing the API: Banks Are Increasingly Generating Funds from Tech

Banks are increasingly treating payment APIs as both a growth engine and a defensive moat. The move away from screen scraping toward open banking and proprietary APIs has reduced risk and maintenance costs while enabling banks to monetize payment flows directly. Layered API strategies—ranging from core payment functions to modular embedded finance solutions—are driving higher transaction volumes, deeper client integration, and new cross-sell opportunities. Control of consumer-permissioned financial data has emerged as a central lever, with some banks now charging for access and steering traffic toward bank-friendly networks. 

Shifting dynamics with financial data intermediaries, plus pending regulatory action, are reshaping ownership, governance, and accountability around data sharing. As embedded finance expands across marketplaces and other industries, banks’ long-standing strengths in compliance, risk management, and money movement are becoming positive differentiators. Payment APIs are reinforcing the primacy of the demand deposit account while unlocking scalable, defensible revenue streams. It’s all positioning banks to compete more assertively in an increasingly API-driven financial ecosystem. 

Key questions discussed in this Tech & Infrastructure Payments report:

• How has banks’ approach to monetizing payment APIs evolved from screen-scraping partnerships to proprietary and embedded finance models, and what revenue opportunities does this evolution unlock?
• What strategic and regulatory implications arise as banks reassert control over consumer‑permissioned financial data, including charging for data access?
• How can banks leverage payment APIs as both a defensive moat around the demand deposit account and an offensive growth lever through cross‑selling, embedded finance, and industry‑specific use cases?

Companies Mentioned:

Akoya, Bank of America, Evolve Bank, Finicity, JPMorgan Chase, Mastercard Open Banking, MX, Plaid, Stripe, Synapse, U.S. Bank