overlay: 1.0.0
info:
  title: API Evangelist enhancements for Cynergy Bank confirmation-of-funds (OBIE Read/Write)
  version: 1.0.0
extends: openapi/cynergy-bank-confirmation-of-funds-obie-standard-openapi.yaml
actions:
- target: $.info
  update:
    x-apievangelist-provenance: OBIE Read/Write API Standard (shared), harvested from OpenBankingUK/read-write-api-specs;
      not a Cynergy-proprietary contract.
    x-apievangelist-conforms:
    - fapi-1-advanced
    - psd2
    - uk-open-banking-read-write
    - oauth2
    - oidc
    - mutual-tls
    - jws-message-signing
    x-apievangelist-auth: oauth2 (clientCredentials + authorizationCode) over mTLS with OBIE/eIDAS certificates;
      PSD2 SCA.
    x-apievangelist-idempotency: x-idempotency-key required on payment/consent POST operations (24h window).