overlay: 1.0.0 info: title: API Evangelist enhancements for Tandem Bank Payment Initiation API (PIS) version: 1.0.0 extends: openapi/obie-standard-payment-initiation-openapi.yaml actions: - target: $.info update: x-apievangelist-provider: Tandem Bank x-apievangelist-spec-provenance: >- Shared OBIE Read/Write API Standard specification (OpenBankingUK/read-write-api-specs), captured verbatim; the standard Tandem Bank's Token-provided dedicated interface conforms to. x-apievangelist-dedicated-interface-provider: Token (token.io) x-apievangelist-security-model: FAPI + OAuth2/OIDC + mutual-TLS + PSD2 SCA x-apievangelist-production-baseurl: Issued per authorised TPP during Token onboarding; not publicly published.