Lighter Get Funding Rates

Get current funding rates for Lighter perpetual markets with cross-exchange comparison. Returns one row per market with the Lighter rate alongside Binance, Bybit, and Hyperliquid rates (per-interval decimal fractions as reported by each venue; funding intervals differ per exchange, so normalize by interval before comparing venues — no annualization is applied); filter by symbol or get all markets. Ideal for: funding rate alerts and delta-neutral yield monitoring.