Open Interest History

Historical open-interest series. Passthrough of Binance USDⓈ-M Futures /futures/data/openInterestHist.

Endpoint

GET /openInterestHist

Authentication: Public.

Query parameters

Name	Type	Required	Default	Notes
symbol	string	Yes	—	Uppercase futures symbol.
period	string	No	5m	One of 5m, 15m, 30m, 1h, 2h, 4h, 6h, 12h, 1d.
limit	integer	No	10	Max per Binance is 500.

Response — 200 OK

Array, Binance shape:

[
  {
    "symbol": "BTCUSDT",
    "sumOpenInterest": "12345.678",
    "sumOpenInterestValue": "827654321.00",
    "timestamp": 1745920800000
  }
]

Errors

HTTP	Cause
422	Missing symbol.
502	Upstream Binance request failed.

Example

curl -s "https://api.pipai.org/openInterestHist?symbol=BTCUSDT&period=1h&limit=24"