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Overview

Filter orders by market slugs to track all trades within specific markets. Market slugs are unique identifiers for each market on Polymarket.

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Subscription Format

{
    "action": "subscribe",
    "platform": "polymarket",
    "version": 1,
    "type": "orders",
    "filters": {
        "market_slugs": [
            "btc-updown-15m-1762755300"
        ]
    }
}

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Parameters

  • action: Must be "subscribe"
  • platform: Must be "polymarket"
  • version: Currently 1
  • type: Must be "orders"
  • filters.market_slugs: Array of market slug strings

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Multiple Market Slugs

You can track multiple markets in a single subscription: 
{
    "action": "subscribe",
    "platform": "polymarket",
    "version": 1,
    "type": "orders",
    "filters": {
        "market_slugs": [
            "btc-updown-15m-1762755300",
            "eth-price-2024-12-31"
        ]
    }
}
You’ll receive order events when trades occur in any of the specified markets.

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Example Response

When an order matching your filter is executed, you’ll receive: 
{
    "type": "event",
    "subscription_id": "sub_m58zfduokmd",
    "data": {
        "token_id": "57564352641769637293436658960633624379577489846300950628596680893489126052038",
        "side": "BUY",
        "market_slug": "btc-updown-15m-1762755300",
        "condition_id": "0x592b8a416cbe36aa7bb40df85a61685ebd54ebbd2d55842f1bb398cae4f40dfc",
        "shares": 5000000,
        "shares_normalized": 5,
        "price": 0.54,
        "tx_hash": "0xd94d999336c1f579359044e2bc5fba863f240ee07ef1c6713ff69e09b67b3b13",
        "title": "Bitcoin Up or Down - November 10, 1:15AM-1:30AM ET",
        "timestamp": 1762755335,
        "order_hash": "0xf504516ab54ea46f41eaf2852f41c328e6234928f3fcfe01a9172a5908839421",
        "user": "0x6031b6eed1c97e853c6e0f03ad3ce3529351f96d"
    }
}
The market_slug field in the response will match one of the market slugs from your subscription filter.

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Finding Market Slugs

Market slugs can be found:
  • In the URL of Polymarket market pages
  • From the Markets API endpoint response
  • In order event data from other subscriptions

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Use Cases

  • Monitor all trading activity within specific markets
  • Track market-wide order flow
  • Build market-specific analytics
  • Create alerts for trades in particular markets