Volume History - PolyNode

curl "https://api.polynode.dev/v3/perps/volume/btc?bucket=1h&limit=24&key=$POLYNODE_API_KEY"

{
  "instrument_id": 6,
  "symbol": "BTC-USD",
  "bucket": "1h",
  "data": [
    {
      "timestamp": 1783569600000,
      "notional_volume": "1284304.22",
      "quantity": "20.71",
      "trade_count": 342
    }
  ],
  "more": false
}

Parameter	Description
`bucket`	`1m`, `5m`, `15m`, `1h`, `4h`, `1d` (default `1h`)
`after` / `before`	Time window (Unix seconds or ms)
`limit`	Max buckets (default 200, up to 2000)

notional_volume is price × quantity summed in USD; quantity is base-asset units. Rolled up from every archived execution, accruing from July 9, 2026 onward.