multichain-bot-lab/polymarket-trading-bot

This is an automated trading bot written in TypeScript for Polymarket, a prediction market platform where people bet on the outcome of real world events using cryptocurrency. This particular bot is built around short term binary crypto markets, for example a market asking whether Bitcoin will go up or down in the next fifteen minutes. The bot connects to Polymarket's live order book and real time price data, then can apply one of two logic styles. The first watches for short term price momentum in the order book and would buy the UP or DOWN outcome token when the market appears to be trending in that direction, which the project describes as directional trading rather than true arbitrage. The second looks for moments when the combined price of both the UP and DOWN tokens falls below one dollar, their guaranteed combined payout, and would buy both sides at once to lock in that gap as profit. Right now, the actual code that places orders is commented out in both strategies, so the bot runs only as a monitoring and signal detection framework: it connects, watches the market, updates prices, and logs what it would do, without placing any real trades unless a developer uncomments that code and accepts the risk involved. Settings are controlled through a TOML configuration file, where a user picks the cryptocurrency market such as Bitcoin, Ethereum, Solana, or XRP, the time window for each market, and the thresholds each strategy uses. A simulation mode lets the bot run without sending any real orders at all. Using it requires a Polymarket wallet with a private key and a working Node.js setup.