generated: '2026-07-22'
method: searched
source: https://docs.blink.six-group.com/api-reference/introduction.md + repo OpenAPI derivation
authentication:
  style: Mutual TLS client certificates across the estate (bLink, debiX, Web API,
    Bulk API); OAuth 2.0 consent flows layered on top for bLink; four Swiss
    infrastructure APIs are open/unauthenticated.
  see: authentication/six-group-authentication.yml
idempotency:
  supported: false
  note: No Idempotency-Key header or idempotency contract is documented in any
    public SIX spec or docs page (checked debiX, bLink, shared-catalog specs).
pagination:
  style: none-documented
  note: The public specs are lookup/command style (bank master snapshots, status,
    calendar, card commands) with no cursor/offset pagination parameters.
formats:
  request_response: JSON everywhere; bLink also returns XML payloads; Swiss Bank
    Master and SIC Clearing Day Calendar additionally publish CSV file variants
    (/bankmaster_V3.csv, /calendar.csv).
versioning:
  style: uri-path major versions (v1/v2/v3) + semantic versioning of debiX
    interface releases; bLink ships annual November major releases in parallel mode.
  see: lifecycle/six-group-lifecycle.yml
error_envelope:
  shapes:
  - name: BankApiError / ApiError (debiX)
    fields: [applicationError, errorCode, description, details]
    detail: Numeric int32 errorCode (e.g. 5001, 4469-4484 documented in release
      notes) with applicationError name and optional ErrorDetail list.
  - name: Problem (Swiss Bank Master, SIC Clearing Day Calendar)
    fields: [type, title, status, detail]
    detail: RFC 7807-style problem object (type URI like
      /problems/REQUEST_PARAMETER_VALIDATION_FAILED) served as application/json,
      not application/problem+json.
  - name: Error / ApiGwError (Settlement Info Reporting)
    fields: [errors]
    detail: Error list envelope plus API-gateway error shape.
  see: errors/six-group-problem-types.yml
request_tracing:
  note: No request-id/correlation header parameters are declared in the published
    specs.
rate_limits:
  note: No rate-limit headers or quotas are documented publicly; 429 responses are
    declared in the Settlement Info Reporting spec without numeric limits.
webhooks_events:
  note: debiX PUSH delivers near real-time card/token/transaction events to issuers
    over IBM MQ (not HTTP webhooks).
  see: asyncapi/six-group-debix-push-webhooks.yml