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Join us on DiscordLive open interest for every Hyperliquid perpetual, plus a daily history most APIs don't have — Hyperliquid's own API only exposes the current snapshot. We've been capturing it every 5 minutes since 2026-03-30, which is as far back as it will ever go for anyone.
Showing the most recent 14 days free. Full history since 2026-03-30, and any Hyperliquid coin, via the API on Pro Plus.
Same metric, two very different questions.
Live snapshot answers "how much leverage is open right now" — use /api/v1/hyperliquid/open-interest for the current value across the whole universe. History answers "was this a build-up or a flush, and when did it start" — that needs the daily series from /api/v1/derivatives/hyperliquid/history, because a single snapshot can't tell you which direction OI is moving or how fast.
Nothing before 2026-03-30 exists for Hyperliquid OI specifically — its fundingHistory API has only ever carried the funding rate, never open interest or mark price, so there was nothing to backfill from even in principle. From 2026-03-30 onward, every day is real, captured data — not an estimate.
curl -H "X-API-Key: cdk_live_yourkey" \ "https://cryptodataapi.com/api/v1/derivatives/hyperliquid/history?symbol=BTC&days=90"
Live snapshot: /api/v1/hyperliquid/open-interest (any tier). Daily history: /api/v1/derivatives/hyperliquid/history (Pro Plus). See the derivatives endpoint docs.
Open interest tells you whether money is entering or leaving a trend — price up with OI up is new money, price up with OI down is shorts covering. On Hyperliquid specifically, this now reconstructs cleanly from our own archive instead of a single live number.
Build me a trading strategy around Hyperliquid open interest from CryptoDataAPI.
Pull daily history from /api/v1/derivatives/hyperliquid/history?symbol=BTC&days=180 and the live snapshot from /api/v1/hyperliquid/open-interest. Classify each day by the four price/OI combinations (both up, both down, price up OI down, price down OI up) and trade the transitions, not the states.
Be explicit about entries, exits, sizing, and which of the four regimes you refuse to trade. Note that this daily OI history starts 2026-03-30; for earlier windows use the hl_asset_ctxs archive (Hyperliquid's one-minute snapshots, 2023-05-20 on) rather than extrapolating.
Report per-regime returns with taker fees, and tell me plainly which of the four combinations actually predicted anything.