Market Stream

Alpha Version

The Ostium Builder Service is in Alpha. API endpoints, specifications, and builder URLs may change without notice. Use with caution in production environments.

Endpoint

ws(s)://<host>/v1/market/stream

Tick Payload

Messages are raw JSON ticks:

{
  "feed_id": "BTC-USD",
  "bid": 42495.1,
  "mid": 42500.2,
  "ask": 42505.3,
  "isMarketOpen": true,
  "isDayTradingClosed": false,
  "secondsToToggleIsDayTradingClosed": 0,
  "from": "USD",
  "to": "BTC",
  "timestampSeconds": 1738080000
}

Error Messages

If the upstream stream disconnects or is misconfigured, the service may emit an error message such as:

{ "type": "error", "message": "Upstream disconnected" }

Notes

The stream is a direct proxy of live market data.
No authentication is required.