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Polymarket Copy Trading Bot

aradotso/trending-skills

This TypeScript bot monitors a target Polymarket wallet and automatically mirrors their BUY orders to your account using the CLOB API on Polygon. You configure a position multiplier (default 10%) and risk caps, then let it poll the Data API every couple seconds or subscribe via WebSocket for lower latency. It handles three auth modes including EOA and Polymarket's proxy wallets, supports FOK/FAK/LIMIT orders, and enforces per-session and per-market notional limits. Useful if you want to shadow trade someone but don't want to sit there refreshing their activity. The code is straightforward with separate modules for monitoring, execution, and risk management, though you'll need to handle your own trade filtering logic if the target makes moves you don't want to copy.

skills.sh installs: 757
GitHub stars: 61
last updated: Jul 14, 2026

Install

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

Installs into .claude/skills of the current project.

Files

Polymarket Copy Trading Bot

Skill by ara.so — Daily 2026 Skills collection.

A TypeScript bot that continuously monitors a target Polymarket wallet, detects trades in real time via REST polling and/or WebSocket, and mirrors BUY orders to your own account using the Polymarket CLOB SDK on Polygon mainnet.

What It Does

Monitors a target wallet via Polymarket Data API (REST polling every ~2s) and optionally WebSocket
Mirrors BUY trades only — SELL trades are detected but skipped by default
Sizes copies using a configurable POSITION_MULTIPLIER (default 10%) with min/max caps
Submits orders as FOK, FAK, or LIMIT via the Polymarket CLOB client
Enforces risk limits — per-session and per-market notional caps
Supports three auth modes — EOA (SIG_TYPE=0), Poly Proxy (SIG_TYPE=1), Poly Polymorphic (SIG_TYPE=2)

Installation

git clone https://github.com/Neron888/Polymarket-copy-trading-bot.git
cd Polymarket-copy-trading-bot
npm install

Requires Node.js v18+. The CLOB SDK requires ethers v5 (already pinned in package.json).

Configuration

cp .env.example .env

SKILL.md on GitHub

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Details

Repository: github.com/aradotso/trending-skills
Category: Finance & Trading
First seen: May 16, 2026

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