Nansen Polymarket Insider Scan

This scans resolved Polymarket markets for wallets that look like they had inside information. It pulls the top winners from a market, then checks each one for red flags: brand new wallets, people who only traded this one market, insane ROI percentages, late entries at high confidence prices. The scoring system is explicit, with thresholds like 500%+ ROI for 3 points or single market focus for another 3. You'd run this after a sketchy outcome to see if the usual suspects show up. It requires a Nansen API key and does the tedious work of cross referencing trading history with wallet funding dates and profiler labels. Rate limiting and error handling are built in since you're often checking dozens of wallets.