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— Sam and the CDA team
Join us on DiscordLive perpetual-futures open interest — the total value of leveraged positions still open. Rising OI means new leverage entering; a build-up into a stalling price is where liquidation cascades start.
Universe = Hyperliquid perps. The API also serves cross-exchange (Binance / OKX / Bybit) OI with multi-window change.
Direction beats level. Pair it with funding.
Open interest is the total notional of perp contracts currently open. Unlike volume, OI counts positions still on — a direct gauge of how much leverage and capital is committed right now.
curl -H "X-API-Key: cdk_live_yourkey" \ https://cryptodataapi.com/api/v1/derivatives/open-interest
See the open interest endpoint docs.
Want Hyperliquid open interest history specifically? See Hyperliquid Open Interest (Pro Plus).