About-hourly open-interest history for one Hyperliquid main-dex perp (BTC, ETH, SOL, ... any listed coin): open interest in coins and USD, mark price and hourly funding per snapshot, plus change over the window. Hyperliquid has no public OI history, so these are cryptofeed402's own snapshots (8-day retention). hours=1-192, default 24. Bad params 400, unknown symbol 404, no history 503, no charge. Free sample at /samples/oi-history. $0.005 USDC per call on Base.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.005000 USDC | 0x93e4...0D22 |