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Account and Transaction API Specification
UK Open Banking Account Information API (AIS) lets authenticated third parties read user bank account balance, transactions, and metadata with user consent.
Confirmation of Funds API Specification
UK Open Banking Confirmation of Funds API (CBPII) lets third parties query if a user account has sufficient funds — returns only yes/no, not the actual amount.
Event Notification API Specification - TPP Endpoints
UK Open Banking Event Notifications API lets TPPs (third parties) subscribe to bank event streams — async notifications for account changes, consent revocations, customer status changes.
Open Data API
UK Open Banking API is the UK's statutory banking API standard — third parties access user account data and initiate payments with user consent (PSD2 compliance).
Payment Initiation API
UK Open Banking Payment Initiation API (PIS) lets authenticated third parties initiate transfers from user bank accounts with user consent (A2A payments).