Get Hl Funding Bars

Hyperliquid funding and open interest aligned to the candle clock — one row per closed bar per coin, so a funding/OI condition can be tested against the same 4h bar a price signal fires on.

time is the bar open and equals the timestamp of the matching /hyperliquid/candles bar (join on it). Per bar: funding_sum (carry actually settled in (time, time + interval] — a settlement at 16:00 pays for the hour before it, so it belongs to the bar that closes at 16:00) with n_settlements; funding_rate_mean (mean live hourly rate over the bar); oi_open / oi_close / oi_change_pct (base-coin units, first and last 5-min sample in the bar) and mark_close.

Point-in-time: every value was observable by the bar's close — act on it at the NEXT bar's open. Bars start where our 5-min snapshots do (2026-03-30; see coverage) — Hyperliquid publishes no historical OI, so nothing earlier can exist; older settled funding alone is /backtesting/funding? grain=hourly. funding_sum is null for the most recent day until its prints are archived. Window ≤ 93 days per call. Pro Plus.