generated: '2026-07-19'
method: derived
source: >-
  live probes of https://api.infakt.pl/api/v3/ + https://docs.infakt.pl/ +
  well-known/infakt-security.txt
conventions:
  protocol: REST + JSON
  base_url: https://api.infakt.pl/api/v3/
  resource_addressing: >-
    Resources are addressed with an explicit .json extension, e.g.
    /api/v3/invoices.json, /api/v3/clients.json. Requesting a resource without
    the extension returns HTTP 406 Not Acceptable.
  authentication:
    style: api-key-header
    header: X-inFakt-ApiKey
    ref: authentication/infakt-authentication.yml
  versioning:
    scheme: uri-path
    current: v3
    ref: lifecycle/infakt-lifecycle.yml
  error_envelope:
    shape: 'JSON object with a single "error" string field'
    example: '{"error":"Musisz podac klucz API."}'
    ref: errors/infakt-problem-types.yml
  idempotency:
    supported: unknown
    note: >-
      inFakt does not publicly document an idempotency-key header or parameter;
      no Idempotency pointer is emitted (not fabricated).
  pagination:
    style: unknown
    note: >-
      Pagination parameters are not confirmed from public probing; left
      unasserted rather than fabricated.
  webhooks:
    supported: true
    ref: asyncapi/infakt-webhooks.yml