generated: '2026-07-23'
method: searched
source: https://developers.newline53.com/docs/webhooks
spec_type: Webhooks
docs_pages:
  - https://developers.newline53.com/docs/webhooks
  - https://developers.newline53.com/docs/webhooks-authentication
  - https://developers.newline53.com/docs/webhooks-topics
  - https://developers.newline53.com/docs/webhooks-topic-definitions
  - https://developers.newline53.com/docs/webhooks-subscriptions
  - https://developers.newline53.com/docs/message-queue
  - https://developers.newline53.com/docs/messagequeue-topics
notes: >-
  Newline delivers real-time event notifications via two surfaces: Webhooks
  (topic-subscribed HTTP callbacks) and a Message Queue. No published AsyncAPI
  document exists, so this captures the webhook topic catalog. All webhook
  payloads are PGP-encrypted in transit in both sandbox and production; clients
  decrypt to read the event. There is no AsyncAPI spec to save verbatim.
delivery:
  transport: [webhooks, message-queue]
  encryption: PGP (payloads encrypted in transit; sandbox and production)
  subscription: topic-based
topics:
  - topic: Transfers
    reference: https://developers.newline53.com/reference/transfers
    events:
      - Transfer Initiated — a transfer has been created
      - Transfer Status Changed — the status of a transfer has been updated
      - RTP Settlement — an instant payment transfer has settled
  - topic: Transactions
    reference: https://developers.newline53.com/reference/transactions
    events:
      - Transaction Created — a transaction record has been generated
      - Transaction Status Updated — the transaction status has changed
  - topic: Synthetic Accounts
    reference: https://developers.newline53.com/reference/synthetic-accounts
    events:
      - Account Created — a synthetic account has been created
      - Status Changed — the account status has changed
      - Name Updated — the account name has been updated
  - topic: Virtual Reference Numbers
    reference: https://developers.newline53.com/reference/virtual-reference-numbers
    events:
      - VRN Created — a new VRN has been issued
      - Instant Payment Rail Registration Status Changed — the registration status has changed