Battle for Bank Relationships in Open Finance

This is a fight over who owns the bank relationship in open finance. MX starts from the institution side, selling banks the pipes and controls for permissioned data sharing, while Plaid is trying to move closer to that same decision maker through Core Exchange so it is not just an app side connector but part of a bank’s own data access stack.1 2 3 4 5

• Core Exchange is Plaid’s bank facing product. It lets a financial institution appear inside Plaid Link, replace credential sharing with API led connectivity, and support data transparency and permissions flows tied to CFPB 1033 style requirements. That is a direct pitch to banks, not just fintech developers.2 3 4
• MX’s edge is that banks already buy it as infrastructure. Its positioning centers on tokenized, credential free connections and institution managed access, which fits the post screen scraping world where banks want to govern who gets data, for what purpose, and how access can be revoked.5 6
• Mastercard Open Finance, formerly Finicity, matters most in lending and verification rather than broad consumer fintech connectivity. Its products are built around asset, income, and employment verification, cash flow analysis, and regulated credit workflows, which makes it strongest where lenders need decision ready data, not just account linking.7 8 9

The next step is a three way split. Plaid keeps pushing upward into bank distributed connectivity and adjacent software, MX defends the bank core with governance and API control, and Mastercard Open Finance keeps owning high value underwriting flows. The winner captures not just connection volume, but the right to define how consumer financial data moves.1 2 5 7 8