sanzoI-tech

sanzoI-tech / polymarket-kalshi-arbitrage-bot

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polymarket trading bot, polymarket bot, polymarket kalshi trading bot, polymarket trading bot, polymarket bot, polymarket kalshi trading bot, polymarket trading bot, polymarket bot, polymarket kalshi trading bot, polymarket trading bot, polymarket bot, polymarket kalshi trading bot, kalshi, prediction-markets, arbitrage, typescript, clob

github.comsanzoI-techpolymarket-kalshi-arbitrage-bot algorithmic-trading arbitrage arbitrage-bot automated-trading clob
124
57
69% credibility
Found May 11, 2026 at 124 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

This is a monitoring tool that compares prices on Polymarket and Kalshi prediction markets for short events, signals arbitrage opportunities, and can automatically place buy orders on Polymarket.

How It Works

1
🔍 Discover the Price Watcher

You find this handy tool online that keeps an eye on two prediction market sites, Polymarket and Kalshi, to spot when prices don't match up.

2
📥 Set Up for Your Event

Download the program and simply note which upcoming event markets you want it to follow.

3
🔗 Connect Your Wallet

Link your personal trading wallet securely so the tool can make smart buys on your behalf when deals appear.

4
▶️ Launch the Monitor

Start the tool with one command, and it quietly checks prices on both sites every few seconds.

5
💡 Catch a Price Gap

The tool notices when one site prices an outcome much higher than the other and gets ready to buy the cheaper one.

6
📱 Check Live Status

Peek at the easy status page anytime to see current prices, signals, and what it's deciding.

💰 Reap the Rewards

Your automatic buys turn price differences into profits as the markets settle correctly.

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Star Growth

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AI-Generated Review

What is polymarket-kalshi-arbitrage-bot?

This TypeScript bot scans short-duration prediction markets on Polymarket and Kalshi for pricing discrepancies, spotting arbitrage opportunities like Kalshi YES shares trading 10+ cents above Polymarket UP shares. It polls the Polymarket GitHub CLOB and Kalshi trade API on a configurable interval, emits buy signals via a simple Express API (/status endpoint shows latest prices and decisions), and optionally places automated Polymarket buy orders using the official clob-client. Deploy it on a VPS to monitor paired markets and execute trades after a start delay, with built-in cooldowns and health checks.

Why is it gaining traction?

It stands out by wiring both platforms for cross-venue arbitrage—spread-based entries in high-confidence bands (93-96 cents) plus late-resolution plays when Kalshi settles first—without needing custom websocket handling or complex order logic. Devs grab it for the plug-and-play .env config, real-time /status API for signal validation, and quick-start npm scripts that get you polling in minutes. Compared to scattered Polymarket trading bot GitHub repos, this delivers transparent, low-latency monitoring tailored to 15-minute events.

Who should use this?

Quant devs or traders automating Polymarket trading strategies on Polygon, especially those hunting Kalshi-Polymarket BTC arbitrage or similar short markets. Prediction market enthusiasts testing bots on a budget VPS before scaling capital. Teams integrating Polymarket GitHub API data into dashboards via the exposed endpoints.

Verdict

Solid starter for Polymarket-Kalshi arbitrage bots with excellent README docs and user-facing API, but 124 stars and 0.7% credibility score signal it's early-stage—test signals manually and use tiny trade sizes first. Worth forking if you're in prediction markets; skip if you need battle-tested production reliability.

(198 words)

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