Moment Realtime Webhooks

generated: '2026-07-20'
method: searched
source:
  - https://docs.moment.com/reference/getting-started-with-your-api
  - https://docs.moment.com/reference/real-time-orders-api
  - https://docs.moment.com/reference/real-time-prices-api
  - llms/moment-llms.txt
spec_type: Webhooks
surface: websocket
description: >-
  Moment publishes no AsyncAPI document, but exposes a real-time event surface
  over WebSockets (RFC 6455) that complements the REST API with low-latency
  messaging and status updates. Not fabricated into an AsyncAPI spec; captured
  as the documented event/streaming catalog.
protocol:
  transport: websocket
  url_format: wss://moment-api.com/v{X}/...
  message_format: JSON
  envelope: '{"msg_type": "<message_type>", "<key>": "<value>", ...}'
  control_message_types: [error, success, subscription, heartbeat]
  keepalive: >-
    RFC 6455 ping/pong every 10-15s plus optional application-level
    {"msg_type":"heartbeat"} messages on trading streams.
streams:
  - name: Real-time Orders API
    docs: https://docs.moment.com/reference/real-time-orders-api
    delivers: >-
      Real-time updates about order statuses (order_update / system_update
      events, execution/cancel/reject lifecycle notifications).
  - name: Real-time Prices API
    docs: https://docs.moment.com/reference/real-time-prices-api
    delivers: Real-time prices and yields for instruments.
  - name: Real-time RFQ API
    docs: https://docs.moment.com/reference/understanding-rfqs-guide
    delivers: Real-time RFQ status and cancel-reject events.
notes: >-
  This is a push/streaming event surface (not HTTP callbacks). Wired as
  type: Webhooks for the event-surface scoring family; no AsyncAPI spec exists
  to save verbatim.