订阅 Kalshi 与 Polymarket 实时行情

使用 pm:* 房间接收预测市场更新。选择交易所、市场或事件范围，并使用对应 ID；价格和订单簿需指定市场。

Public Beta — Prediction market rooms use the same Datastream hub as other Solana Tracker streams.
Connect to wss://datastream.solanatracker.io/{apiKey} with your Data API key.

Connecting

const ws = new WebSocket("wss://datastream.solanatracker.io/YOUR_API_KEY");

ws.onopen = () => {
  ws.send(JSON.stringify({ type: "join", room: "pm:trades" }));
  ws.send(JSON.stringify({
    type: "join",
    room: "pm:market:polymarket:YOUR_TOKEN_ID:prices"
  }));
};

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  if (msg.type === "message") console.log(msg.room, msg.data);
};

Join / leave:

{ "type": "join", "room": "pm:trades" }
{ "type": "leave", "room": "pm:trades" }

Room types

Room	Purpose
`pm:trades`	Full trade tape (all exchanges)
`pm:trades:significant`	Trades with notional ≥ $25
`pm:{exchange}:trades`	e.g. `pm:polymarket:trades`
`pm:market:{exchange}:{marketId}:trades`	Single-market tape
`pm:event:{exchange}:{eventId}:trades`	All markets under one event
`pm:market:{exchange}:{tokenId}:prices`	Live top-of-book mid (+ `displayPrice`)
`pm:market:{exchange}:{tokenId}:quotes`	Streaming size-aware VWAP ladder
`pm:market:{exchange}:{tokenId}:orderbook`	Full book snapshots
`pm:event:{exchange}:{eventId}:volume`	Live cumulative USD volume for an event
`pm:market:{exchange}:{tokenId}:volume`	Live cumulative USD volume for one outcome
`pm:crypto:{asset}`	Chainlink underlying (BTC/ETH/…) — not outcome chance
`pm:market_lifecycle` / `pm:resolution`	Lifecycle and resolution fan-out

Price, quote, and orderbook subscriptions require a market ID. There is no global pm:prices room. notionalUsd is price × quantity (USD). The significant room uses threshold $25. Event rooms accept identities included in the payload, such as eventId, eventSlug, gammaEventId, or a Kalshi eventTicker.

Volume example

Crypto 5m windows — join with the event slug:

{ "type": "join", "room": "pm:event:polymarket:btc-updown-5m-1785347100:volume" }

{
  "type": "message",
  "room": "pm:event:polymarket:btc-updown-5m-1785347100:volume",
  "data": {
    "type": "volume",
    "channel": "volume",
    "exchange": "polymarket",
    "marketId": "{tokenId}",
    "timestamp": 1785347120123,
    "eventId": "btc-updown-5m-1785347100",
    "volume": 48210.55,
    "marketVolume": 24105.27,
    "delta": 42.5
  }
}

Replace the displayed volume with the latest frame. Fields include volume, marketVolume, delta, and eventId.

Quotes vs REST

Join pm:market:polymarket:{tokenId}:quotes for a streaming size-aware VWAP ladder. For arbitrary sizes use REST GET /v1/markets/{id}/quote on prediction-market-api.solanatracker.io.

Prices vs crypto underlying

Feed	Room	Meaning
Outcome chance	`pm:market:polymarket:{tokenId}:prices`	CLOB top-of-book mid
Underlying	`pm:crypto:{asset}` / `pm:crypto:{asset}:prices`	Chainlink USD ticks

IDs

Room segments are lowercase.
Polymarket market rooms require decimal CLOB token IDs (not 0x condition ids).
Kalshi tickers appear uppercase in many REST payloads but lowercase in room names.

API reference

In the Datastream nav, Prediction Market rooms are grouped as:

Group	Rooms
Prediction Markets — Trades	`pm:trades`, significant, exchange / market / event trades
Prediction Markets — Prices	market prices, quotes, orderbook
Prediction Markets — Volume	event and market volume
Prediction Markets — Lifecycle	lifecycle and resolution
Prediction Markets — Crypto	`pm:crypto:{asset}`
Prediction Markets — Feeds	exchange, market, event, type, category, series, status, sport

开始使用

代币数据

钱包与盈亏

实时数据

Pump.fun

预测市场

兑换与 RPC

订阅 Kalshi 与 Polymarket 实时行情

Connecting

Room types

Volume example

Quotes vs REST

Prices vs crypto underlying

IDs

API reference

​Connecting

​Room types

​Volume example

​Quotes vs REST

​Prices vs crypto underlying

​IDs

​API reference

Connecting

Room types

Volume example

Quotes vs REST

Prices vs crypto underlying

IDs

API reference