What is polymarket-trading-bot?

arbitragebot-group/polymarket-trading-bot — explained in plain English

Analysis updated 2026-05-18

★ 219JavaScriptAudience · developerComplexity · 4/5Setup · hard

Mindmap

mindmap
  root((repo))
    What it does
      Trades BTC 5min up down markets
      Buys both sides for arbitrage
      Merges and redeems positions
    Tech stack
      Node.js
      Polygon blockchain
      Real time price monitoring
    Use cases
      Automated market arbitrage
      Copy trading a wallet
      Study trading automation
    Audience
      Experienced crypto traders
      Node.js developers
    Safety
      Spending caps per market
      Circuit breakers

mindmap root((repo)) What it does Trades BTC 5min up down markets Buys both sides for arbitrage Merges and redeems positions Tech stack Node.js Polygon blockchain Real time price monitoring Use cases Automated market arbitrage Copy trading a wallet Study trading automation Audience Experienced crypto traders Node.js developers Safety Spending caps per market Circuit breakers

What do people build with it?

USE CASE 1

Run automated arbitrage on Polymarket's five minute Bitcoin Up/Down markets.

USE CASE 2

Mirror trades from a chosen wallet using the copy trading module.

USE CASE 3

Monitor live prices and merge matched positions automatically.

USE CASE 4

Study a real world example of an automated crypto trading system.

What is it built with?

Node.jsJavaScriptPolygon

How does it compare?

	arbitragebot-group/polymarket-trading-bot	polymarket-trader-lab/polymarket-trading-bot	rust-lang/lang-team
Stars	219	213	213
Language	JavaScript	JavaScript	JavaScript
Last pushed	—	—	2026-07-03
Maintenance	—	—	Active
Setup difficulty	hard	hard	easy
Complexity	4/5	4/5	1/5
Audience	developer	developer	developer

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · hard Time to first run · 1h+

Requires a funded crypto wallet with USDC on Polygon and comfort with live blockchain transactions.

So what is it?

This is an automated trading bot that operates on Polymarket, a prediction market platform where users bet on real-world outcomes using cryptocurrency. The bot specifically targets short-duration Bitcoin price direction markets, where you bet whether Bitcoin will be higher or lower within a 5-minute window. The main strategy is arbitrage: the bot simultaneously posts buy orders on both the "up" and "down" sides of each market. Since the two outcomes must add up to exactly one dollar in value, the bot looks for moments when it can buy both sides for less than a dollar combined, locking in a guaranteed profit after the market resolves. It also includes a copy-trading module that monitors a target wallet on Polymarket and mirrors that wallet's trades with your own funds. The bot handles the full trading lifecycle automatically: finding upcoming markets before they open, placing orders, monitoring prices in real time, merging matched positions, canceling orders at close, and redeeming winnings after resolution. It includes configurable risk controls like spending caps per market and circuit breakers to limit losses. You would use this if you have experience with cryptocurrency trading and want to automate Polymarket arbitrage strategies. It places real blockchain transactions using a connected wallet funded with USDC on the Polygon network. It is built with JavaScript running on Node.js.

Copy-paste prompts

Prompt 1

Explain what the arbitrage strategy in this Polymarket bot is actually doing when it buys both up and down orders.

Prompt 2

Walk me through the wallet and USDC funding setup this bot needs before it can trade on Polygon.

Prompt 3

How does the copy trading module decide which trades to mirror from a target wallet?

Prompt 4

What do the spending cap and circuit breaker risk controls in this bot actually limit?

Prompt 5

Suggest cautious starting settings for a first test run of this bot's arbitrage strategy.

Frequently asked questions