Nestcoin Webhooks

generated: '2026-07-20'
method: searched
source: https://docs.onboard.xyz/onboard-exchange/connect/webhooks
spec_type: Webhooks
docs: https://docs.onboard.xyz/onboard-exchange/connect/webhooks
notes: >-
  Onboard Connect delivers webhooks (HTTP POST) for order lifecycle events. No AsyncAPI document is
  published; this captures the webhook catalog. Endpoints are configured in the Business portal
  dashboard under Onboard Connect Settings and must return 200 with an empty body. Failed deliveries
  are retried up to 3 times.
delivery:
  transport: http-post
  configured_at: Business portal dashboard (Onboard Connect Settings)
  success_response: 200 OK with empty body
  retries: 3
signing:
  method: HMAC-SHA256
  headers:
    signature: x-signature
    timestamp: x-timestamp
  scheme: HMAC-SHA256 over x-timestamp + payload, keyed with the API secret from the Business dashboard.
envelope:
  event: string
  data: object
  timestamp: unix-timestamp
events:
- name: order.state_transition
  description: Emitted when an order moves between states (e.g. INITIATED -> DEPOSITED).
order_states:
  non_terminal: [PENDING, AWAITING_ACCEPTANCE, INITIATED, DEPOSITED, CONFIRMED, IN_DISPUTE]
  terminal: [COMPLETED, CANCELLED]