Query BTC Fills

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Use Case

• Monitor BTC market depth and liquidity
• Analyze position changes and PnL
• Track market maker activity
• Build BTC-specific trading analytics

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Sample Response

{
  "header": {
    "number": 900000004,
    "timestamp": 1771562718537
  },
  "fills": [
    {
      "user": "0x0bb3e7ca6d66021eecbf23fb09e6dabe44bf1b41",
      "coin": "BTC",
      "px": 67261.0,
      "sz": 0.00305,
      "side": "B",
      "startPosition": -3.23188,
      "dir": "Close Short",
      "closedPnl": 0.061915,
      "fee": 0.0
    }
  ]
}

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Field Descriptions

• coin - Asset symbol (always “BTC” in this query)
• px - Fill price in USD
• sz - Fill size in BTC
• side - “A” (ask/sell) or “B” (bid/buy)
• dir - Trade direction: “Open Long”, “Close Long”, “Open Short”, “Close Short”
• closedPnl - Realized profit/loss when closing a position (0 for opening trades)
• startPosition - Position size before this fill (negative = short, positive = long)
• fee - Trading fee charged