Santander UK Account & Transaction Information API
OBIE Read/Write Account and Transaction Information (AIS) API for accessing account, balance, transaction, and party data with customer consent. FAPI-secured (OAuth2/OIDC, mTLS, PSD2 SCA); onboarding via the Santander Developers portal with OBIE/eIDAS certificates.
Documentation
Documentation
https://developer.santander.co.uk/sanuk/external/product
APIReference
https://developer.santander.co.uk/sanuk/external/