Cross-Exchange Prediction Market Arbitrage

This strategy scans for identical or highly correlated event contracts across multiple prediction market platforms (Kalshi, Polymarket, and PredictIt). When a price discrepancy exists between platforms for the same underlying event, the bot simultaneously buys on the cheaper platform and sells on the more expensive one, locking in a risk-free profit. Entry requires sufficient liquidity and cost coverage (including exchange fees and gas costs on Polymarket). Exit is automated when the price converges or at expiration. The scanner prioritizes speed due to the short-lived nature of these arbitrage windows. It is designed for production use on U.S.-regulated markets alongside decentralized Polymarket.