Cache / Update Frequency: 10 second for all the API plans.
This endpoint is available on the following API plans：
Plans	Hobbyist	Startup	Standard	Professional	Enterprise
Available	✅	✅	✅	✅	✅
Response Data

{
  "code": "0",
  "msg": "success",
  "data": [
    {
      "exchange": "All", // Exchange name; "All" means aggregated across all exchanges
      "symbol": "BTC", // Token symbol

      "open_interest_usd": 57437891724.5572, // Total open interest value in USD
      "open_interest_quantity": 659557.3064, // Total open interest quantity

      "open_interest_by_stable_coin_margin": 48920274435.15, // Open interest value in USD for stablecoin-margined futures
      "open_interest_quantity_by_coin_margin": 97551.2547, // Open interest quantity for coin-margined futures
      "open_interest_quantity_by_stable_coin_margin": 562006.0517, // Open interest quantity for stablecoin-margined futures

      "open_interest_change_percent_5m": 0.34, // Open interest change (%) in the last 5 minutes
      "open_interest_change_percent_15m": 0.59, // Open interest change (%) in the last 15 minutes
      "open_interest_change_percent_30m": 1.42, // Open interest change (%) in the last 30 minutes
      "open_interest_change_percent_1h": 2.27, // Open interest change (%) in the last 1 hour
      "open_interest_change_percent_4h": 2.95, // Open interest change (%) in the last 4 hours
      "open_interest_change_percent_24h": 0.9 // Open interest change (%) in the last 24 hours
    },
    {
      "exchange": "CME", // Exchange name
      "symbol": "BTC", // Token symbol

      "open_interest_usd": 12294999402.5, // Total open interest value in USD
      "open_interest_quantity": 141275.5, // Total open interest quantity

      "open_interest_by_stable_coin_margin": 12294999402.5, // Open interest value in USD for stablecoin-margined futures
      "open_interest_quantity_by_coin_margin": 0, // Open interest quantity for coin-margined futures
      "open_interest_quantity_by_stable_coin_margin": 141275.5, // Open interest quantity for stablecoin-margined futures

      "open_interest_change_percent_5m": 0.08, // Open interest change (%) in the last 5 minutes
      "open_interest_change_percent_15m": 0.14, // Open interest change (%) in the last 15 minutes
      "open_interest_change_percent_30m": 0.49, // Open interest change (%) in the last 30 minutes
      "open_interest_change_percent_1h": 1.13, // Open interest change (%) in the last 1 hour
      "open_interest_change_percent_4h": 2.4, // Open interest change (%) in the last 4 hours
      "open_interest_change_percent_24h": 2.08 // Open interest change (%) in the last 24 hours
    }
    ....
  ]
}