Get available markets on Lighter (zk-orderbook perp DEX) with trading parameters and live stats. Returns symbol, market id, price/size decimals, minimum order amounts, fees, max leverage, last price, open interest, and 24h volume; filter by marketId, symbol, or marketType (perp/spot/all, default perp). Ideal for: building market selectors, validating order parameters, and monitoring market activity.

Get Lighter account overview by L1 address or account index: account index(es), USDC collateral, available balance, and open perpetual positions with entry price, size, and PnL. Looks up all sub-accounts of an address in one call; falls back to the connected wallet when no address is given (Lighter account state is public, so any address can be queried). Ideal for: balance gates before trading, position monitoring, PnL alerts, and portfolio dashboards.

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.