generated: '2026-07-23'
method: searched
source: https://openbankinguk.github.io/read-write-api-site3/ (OBIE Read/Write API standard)
note: >-
  Cross-cutting request/response semantics for the FAPI-secured Read/Write APIs
  (AIS/PIS/CBPII) as mandated by the OBIE Read/Write standard this ASPSP conforms
  to. The public Open Data APIs use content negotiation via versioned media types
  (application/prs.openbanking.opendata.v{n}+json) and expose no idempotency,
  consent, or SCA semantics.
authentication:
  style: FAPI 1.0 Advanced — OAuth2/OIDC over mutual-TLS
  ref: authentication/weatherbys-bank-authentication.yml
idempotency:
  supported: true
  header: x-idempotency-key
  scope: Payment Initiation POST operations (domestic/international payments and file payments)
  max_length: 40
  retention: >-
    Idempotency key uniqueness is enforced for a 24-hour window per the OBIE
    Read/Write standard; a replayed key with an identical request returns the
    original resource without creating a duplicate.
tracing:
  request_id_header: x-fapi-interaction-id
  additional_headers: [x-fapi-auth-date, x-fapi-customer-ip-address, x-customer-user-agent]
pagination:
  style: cursor/link
  response_fields: [Links.Self, Links.First, Links.Prev, Links.Next, Links.Last, Meta.TotalPages]
versioning:
  style: uri-path (OBIE standard version, e.g. /v3.1)
  ref: lifecycle/weatherbys-bank-lifecycle.yml
error_envelope:
  read_write: OBErrorResponse1 (Code, Id, Message, Errors[].ErrorCode/Message/Path/Url)
  open_data: OBError (application/prs.openbanking.opendata.v{n}+json)
  ref: errors/weatherbys-bank-problem-types.yml
rate_limiting:
  signalled_via: HTTP 429 (Too Many Requests); no documented bank-specific rate headers.
consent:
  model: OBIE consent resource (account-access-consents / payment consents / funds-confirmation-consents) authorised via SCA before data/payment operations.