Ticker Stream

Streaming 24-hour rolling ticker updates for a single symbol or for every symbol.

WebSocket URL: wss://stream.pipai.io/ws

Subscription

Subscribe to a single symbol:

{
  "op": "subscribe",
  "channel": "market.ticker",
  "params": { "symbol": "BTCUSDT" },
  "req_id": "client-123"
}

Subscribe to all symbols (use "*"):

{
  "op": "subscribe",
  "channel": "market.ticker",
  "params": { "symbol": "*" },
  "req_id": "client-123"
}

Unsubscribe:

{
  "op": "unsubscribe",
  "channel": "market.ticker",
  "params": { "symbol": "BTCUSDT" },
  "req_id": "client-124"
}

Subscription parameters

Name	Type	Mandatory	Description
symbol	string	Yes	Trading pair, uppercase (e.g. BTCUSDT), or "*" for every actively trading symbol.

Payload

{
  "event": "ticker",
  "ts": 1745923200512,
  "symbol": "BTCUSDT",
  "price": "67432.15",
  "bid": "67431.90",
  "ask": "67432.40",
  "volume_24h": "18234.4521",
  "quote_volume_24h": "1229874512.33",
  "change_24h_pct": "2.34",
  "high_24h": "68120.00",
  "low_24h": "65890.10",
  "count_24h": 482913,
  "close_time": 1745923200000
}

When subscribed with "symbol": "*", one message is pushed per symbol on each tick.

Payload fields

Field	Type	Description
event	string	Always "ticker" for this channel.
ts	integer	Server push time, Unix milliseconds.
symbol	string	Trading pair, uppercase.
price	string (decimal)	Last traded price.
bid	string (decimal)	Best bid price.
ask	string (decimal)	Best ask price.
volume_24h	string (decimal)	Rolling 24h volume in base asset.
quote_volume_24h	string (decimal)	Rolling 24h volume in quote asset.
change_24h_pct	string (decimal)	24h price change in percent (e.g. "2.34" = +2.34%).
high_24h	string (decimal)	Highest price in the rolling 24h window.
low_24h	string (decimal)	Lowest price in the rolling 24h window.
count_24h	integer	Number of trades in the rolling 24h window.
close_time	integer	Window close time, Unix milliseconds.

Update frequency

One message per subscribed symbol every 1 second. If no trade occurred in the interval, the message still ships with refreshed ts, bid, ask, and the rolling 24h aggregates.

Reconnection

If the connection drops, ticker messages will be missed. On reconnect, simply re-subscribe — there is no replay. Because each ticker message carries the full rolling-24h state, no gap-filling is needed; the next tick brings the client back in sync.

For applications that need authoritative 24h aggregates immediately after a reconnect (without waiting up to 1 second), call GET /v1/market/ticker once and then resume the stream.