generated: '2026-07-23'
method: searched
source: openapi/newline-platform-api.json + Newline developer docs
authentication:
  style: jws-hmac-bearer
  header: Authorization
  token_prefix: auth-
  algorithm: HS512
  token_ttl: up to 8 hours
  detail: See authentication/fifth-third-bancorp-authentication.yml
idempotency:
  supported: false
  notes: No idempotency-key header or parameter is documented or present in the OpenAPI.
pagination:
  style: offset
  params:
    - limit
    - offset
  notes: List operations page with limit + offset query parameters.
filtering:
  common_params:
    - external_uid
    - created_at_after
    - created_at_before
    - id_after
    - id_before
    - status
  notes: Range filters use *_after / *_before pairs and settled_index_after/before; id_after/id_before for keyset-style windows.
sorting:
  param: sort
identifiers:
  scheme: uid (opaque unique identifiers per resource); external_uid for client-supplied references
error_envelope:
  format: json
  detail: See errors/fifth-third-bancorp-problem-types.yml and errors/fifth-third-bancorp-decline-codes.yml
rate_limiting:
  signaled: false
  notes: No rate-limit headers documented in the OpenAPI; program-level transfer limits (frequency/volume) are set during onboarding.
events:
  webhooks: https://developers.newline53.com/docs/webhooks
  message_queue: https://developers.newline53.com/docs/message-queue
  encryption: Webhook payloads are PGP-encrypted in transit (both sandbox and production)
  detail: See asyncapi/fifth-third-bancorp-newline-webhooks.yml
versioning:
  scheme: uri-path (v1)
  detail: See lifecycle/fifth-third-bancorp-lifecycle.yml