Crypto Perp Funding-Rate Scanner

Cross-venue perpetual funding rates for any symbol: Kraken Futures, OKX, Hyperliquid in one call. Returns per-venue 8h rates, mark prices, the max rate spread, annualized disagreement pct, and flags outlier funding (illiquid-venue spikes). Input: {query: ETHUSDT}. Read-only public market data; no keys, no advice.