UK Open Banking Account & Transaction Information API (OBIE Standard)
Shared OBIE Read/Write Account & Transaction Information (AIS) standard, FAPI-secured with OAuth2/OIDC, mutual-TLS, and PSD2 strong customer authentication. Included as the OBIE v4.0 standard specification, not a confirmed Recognise Bank contract; no Recognise developer portal or AIS host was found at review time.