I built a whale tracker for Polymarket after losing money copying bad trades manually

I was spending 20+ minutes a day manually checking Polymarket leaderboard wallets, screenshotting positions, and trying to copy bets before they moved. It was embarrassing.

So I built WhaleTrack — whaletrack.app

It tracks the top Polymarket traders in real time. For each whale you get:

Their open positions right now
Win rate across all resolved bets
Top current bet with a one-click copy button
A "if you copied this bet" calculator showing your potential payout
It also detects Whale Consensus — when 3+ whales are on the same side of a market. That's the signal I personally look for before placing a bet.

Built it with Node.js + Vercel serverless functions hitting the Polymarket public API. Zero cost to run so far.

Still early but getting traction. Would love feedback from anyone who trades on prediction markets.