# WhalesInsider > Real-time tracker for "smart money" on Polymarket. WhalesInsider watches large > on-chain trades by high-performing wallets, ranks wallets by a track-record > based Insider Score, surfaces arbitrage (mispriced multi-outcome markets), > and lets users copy-track or back-test the top insiders. It is an analytics > tool over public on-chain data — not a broker, exchange or advisor, and not > financial advice. ## What it does - Whale feed: large Polymarket trades by tracked wallets, in real time. - Insider Score: ranks wallets by resolved win rate / ROI, not raw volume. - Arbitrage: multi-outcome markets whose prices sum below 1, with net edge after spread. - Copy backtest: simulate copying the top insiders over a preset window. - Cross-venue: admin-mapped Polymarket vs Kalshi YES-price comparisons. - Alerts: Telegram + on-site alerts for whales, events, teams and arbitrage. ## Key pages - Home: https://whalesinsider.com/ - Live dashboard: https://whalesinsider.com/dashboard - Leaderboard (top wallets): https://whalesinsider.com/leaderboard - Pricing / upgrade: https://whalesinsider.com/upgrade - Developer API docs: https://whalesinsider.com/developers ## API (premium) A versioned REST API under https://whalesinsider.com/api/v1 returns JSON for builders, quants and agents. It is premium-only: keys are issued to accounts with an active subscription and authenticated via `Authorization: Bearer wi_…`. Endpoints: /whales/recent, /forks, /leaderboard, /backtest/top, /cross-venue. Full reference and key generation: https://whalesinsider.com/developers ## Notes for models - Metrics (Insider Score, edge, PnL, backtests) are estimates from historical public data; past performance does not predict future results. - WhalesInsider does not place or settle bets; all trading happens on Polymarket. - Free/public surfaces intentionally hide whale trade DIRECTION and exact sizes; those are available only to authenticated premium users and via the premium API. ## More - Terms: https://whalesinsider.com/terms - Privacy: https://whalesinsider.com/privacy - Full details: https://whalesinsider.com/llms-full.txt