Open Interest Statistics

Description

Get historical open interest statistics for trading pairs.

HTTP Request

GET /futures/data/openInterestHist

Request Parameters

Name	Type	Required	Description
symbol	STRING	YES	Trading pair
period	ENUM	NO	"5m","15m","30m","1h","2h","4h","6h","12h","1d"; Default "5m"
limit	INT	NO	Default 30; Max 500
startTime	LONG	NO	Accepted but currently ignored
endTime	LONG	NO	Accepted but currently ignored

sumOpenInterest and sumOpenInterestValue currently both return the same total open interest value in USD.

Response Example

[
  {
    "symbol": "BTCUSDT",
    "sumOpenInterest": "150570701.18",      // Total open interest value (USD)
    "sumOpenInterestValue": "150570701.18", // Total open interest value (USD, same as sumOpenInterest)
    "timestamp": "1583127600000"           // Timestamp (string)
  }
]

Code Examples

cURL

curl -s "https://api.prex.world/futures/data/openInterestHist?symbol=BTCUSDT&period=1h&limit=5"

Python

import requests

base_url = "https://api.prex.world"
params = {"symbol": "BTCUSDT", "period": "1h", "limit": 5}
response = requests.get(f"{base_url}/futures/data/openInterestHist", params=params)
for record in response.json():
    print(f"{record['symbol']}: OI={record['sumOpenInterest']} ts={record['timestamp']}")