Managing capital across multiple exchanges creates one persistent problem: there's no single source of truth for your total equity, positions and PnL. ArbLens aggregates current balances with live mark-price updates, open positions with real-time PnL, trade fills, funding payments and deposit/withdrawal history - across 19 exchanges including Hyperliquid, Paradex and on-chain wallets. Read-only API keys. Fernet-encrypted. Cannot place orders.