Polymarket Arbitrage Bot

This is a TypeScript bot that runs the dump-and-hedge arbitrage strategy on Polymarket's 15-minute Up/Down markets for BTC, ETH, SOL, and XRP. It watches for sharp price drops in the opening window, buys the dumped side, then hedges by buying the opposite outcome once the combined cost falls below your profit threshold. The code is well-structured with separate modules for API calls, monitoring, and strategy logic, plus it includes simulation mode so you can test without burning real money. The stop-loss logic will force a hedge if your window times out. If you're already familiar with prediction market mechanics and want to automate this specific pattern, the setup is straightforward with environment variables for all the strategy parameters.

skills.sh installs: 762
GitHub stars: 61
last updated: Jul 14, 2026

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Install

$ npx -y skills add aradotso/trending-skills --skill polymarket-arbitrage-bot --agent claude-code

Installs into .claude/skills of the current project.

Files

Polymarket Arbitrage Bot

Skill by ara.so — Daily 2026 Skills collection.

TypeScript bot automating the dump-and-hedge strategy on Polymarket's 15-minute Up/Down markets (BTC, ETH, SOL, XRP). Detects sharp price drops, buys the dipped side, then hedges the opposite outcome when combined cost falls below a profit threshold.

Installation

git clone https://github.com/infraform/polymarket-arbitrage-bot.git
cd polymarket-arbitrage-bot
npm install
npm run build
cp .env.example .env

Key Commands

Command	Description
`npm start`	Run compiled bot (simulation by default)
`npm run sim`	Explicitly run in simulation (no real orders)
`npm run prod`	Run with real trades (`PRODUCTION=true`)
`npm run dev`	Run TypeScript directly via ts-node
`npm run build`	Compile TypeScript to `dist/`