I will build polymarket kalshi cross platform arbitrage bot

Berlin Dave

Germany

I speak German

PolyBots Dev

I'm a specialized Polybot developer focused on Polymarket and Kalshi. I build fast, reliable, and fully automated trading bots for prediction markets. Whether you need a simple copy-trading bot, arbi...
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About this Gig

I build automated cross platform arbitrage bots that scan Polymarket and Kalshi simultaneously for price discrepancies. The bot detects when the same event is priced differently across platforms, executes simultaneous trades to lock in risk-free profit. Synthetic arbitrage: buy YES on Polymarket and NO on Kalshi (or vice versa) when total cost < $1.00. Example: Kevin Warsh YES = 41¢ on Polymarket, NO = 57¢ on Kalshi total cost 98¢ guaranteed 2¢ profit per contract .


What the bot does:

  • Scans both platforms in real-time for matching events
  • Matches outcomes across platforms (fuzzy matching for name variations) 
  • Detects synthetic arbitrage opportunities (YES + NO < $1.00)
  • Executes simultaneous market orders (Fill-or-Kill) 
  • Implements circuit breakers (daily loss limits, position caps, consecutive error halts) 
  • Rotates capital to highest-profit opportunities 
  • Provides dry-run/paper trading mode
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build polymarket kalshi cross platform arbitrage bot
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build polymarket kalshi cross platform arbitrage bot

Platform:

Custom

Development technology:

Python

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