Mar-fs

Mar-fs / Polymarket-trading-bot

Public

Node.js Polymarket copy trading bot: poll target positions and mirror BUY/SELL on the CLOB.

polymarket.com copy-trading nodejs polymarket prediction-markets trading-bot
19
103
69% credibility
Found Apr 11, 2026 at 19 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

A program that watches a chosen trader's positions on the Polymarket prediction platform and can automatically place matching buy or sell orders to copy them.

How It Works

1
🔍 Spot a top trader

You discover a successful prediction market trader on Polymarket whose betting choices you admire and want to follow.

2
📥 Grab the follower tool

You download the simple follower program that watches the trader and can mirror their moves.

3
⚙️ Pick your settings

You choose the trader's public wallet to track and decide how big to make your matching bets.

4
Choose your style
👁️
Watch only

Safely observe their positions change in real time without risking your money.

💰
Copy trades

Let it automatically place the same bets for you, scaled to your comfort level.

5
▶️ Start the magic

Turn on the tool and watch live updates as the trader opens or closes positions.

6
🔔 Trade alert!

You get instant notice of their new bet, and if copying, yours goes through right away feeling exciting and seamless.

🎉 Bets in harmony

Your portfolio now dances in step with the expert trader, sharing their wins effortlessly.

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Star Growth

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AI-Generated Review

What is Polymarket-trading-bot?

This Node.js GitHub project is a copy trading bot for Polymarket that polls a target wallet's open positions and mirrors them by placing BUY or SELL orders on the CLOB. Set a target address in a .env file, tweak size multipliers and trade limits, then run `npm run dev` for monitoring or live trading with dry-run simulation. Built in TypeScript, it handles GTC limit orders and skips quantity tweaks, focusing on position open/close events.

Why is it gaining traction?

Unlike scattered Polymarket trading bot Python GitHub repos or Rust experiments on Reddit, this offers quick Node.js setup via GitHub Codespaces or Actions, with safety features like min/max trade sizes and dry runs that let you test without risk. Devs grab it from GitHub releases or downloads for instant Polymarket Node.js integration, skipping complex API wrappers. It's a practical alternative to manual copy trading bots discussed in Node.js GitHub interview questions or Polymarket AI trading bot GitHub searches.

Who should use this?

Crypto traders shadowing Polymarket whales via address monitoring, especially Node.js devs building prediction market tools. Suited for those experimenting with copy trading bots on Polygon, or teams deploying via GitHub Pages demos or repository forks. Avoid if you need WebSocket speed or mid-position adjustments.

Verdict

Grab it for a low-risk entry into Polymarket copy trading—solid docs and CLI make it dev-friendly despite 19 stars and 0.7% credibility score signaling early-stage maturity. Fork and extend if you're Node.js-savvy, but test thoroughly in dry-run before live funds.

(178 words)

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