Arbitrage Bots

ImMike / polymarket-arbitrage

by Mike (ImMike)

★ 82 stars View on GitHub →

What it does

Watches 10,000+ markets across Polymarket and Kalshi for arbitrage opportunities. Includes a FastAPI web UI with real-time opportunities, a built-in backtesting engine, dual data mode (simulation vs real), and a kill switch.

What we learned from it

the dual data mode pattern (sim/real toggle behind one interface) is the right way to ship a bot. You can validate the same code path in simulation before flipping the switch — fewer "well it worked in dev" failures.

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