os-underground

os-underground / polymarket-trading-tool

Public

TypeScript Polymarket account monitor and optional copy-trading via @polymarket/clob-client.

polymarket.com copy-trading polymarket prediction-markets trading-bot typescript
20
108
89% credibility
Found Apr 12, 2026 at 31 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

A TypeScript application that monitors a target user's open positions on Polymarket and optionally executes matching buy and sell orders in the user's own wallet.

How It Works

1
📰 Discover the Tool

You find a handy bot on GitHub that lets you follow and copy trades from successful prediction market traders on Polymarket.

2
💻 Get It Ready

You download the tool to your computer and prepare it so it's all set up for use.

3
👤 Pick a Trader to Follow

You choose the wallet address of a trader whose buying and selling moves you want to mirror.

4
Choose Your Style
📊
Just Watch

Monitor the trader's open bets and changes without risking your own money.

💰
Copy Trades

Link your own trading wallet to automatically buy and sell just like they do.

5
🧪 Test Drive First

You run a pretend mode to safely see exactly what trades would happen without using real funds.

6
🚀 Launch for Real

Feeling confident, you flip the switch to live mode and watch the magic happen.

📈 Trades Mirrored Successfully

Your account now automatically copies the pro trader's positions, helping you ride their winning predictions.

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Star Growth

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AI-Generated Review

What is polymarket-trading-tool?

This TypeScript Polymarket trading tool monitors a target account's open positions via polling and displays a clean status view with quantities, prices, and market questions. Enable copy-trading mode to automatically mirror new BUY orders and SELL to close when positions vanish, using @polymarket/clob-client for CLOB execution on Polygon. Configure via .env for poll intervals, size multipliers, and USD guardrails like max trade size, solving manual tracking of Polymarket insiders.

Why is it gaining traction?

Dry-run mode lets you simulate trades risk-free before going live, while min/max position sizing prevents blowups—features missing in raw Polymarket TypeScript API wrappers. The npm run dev workflow spins up fast with dotenv, no boilerplate, and README screenshots prove real performance on tracked wallets. At 20 stars, it hooks devs tired of piecing together Polymarket TypeScript clients for account bots.

Who should use this?

Polymarket traders copying whale accounts without constant checking, or TypeScript scripters automating prediction market plays on Polygon. Suited for solo quants running personal bots, not high-frequency teams needing websockets or persistence.

Verdict

Solid starter for Polymarket TypeScript bots at 0.9% credibility and 20 stars—docs shine, but in-memory state means restarts risk duplicate buys; dry-run first and add Redis for prod. Grab it if copy-trading fits your flow.

(178 words)

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