Polymarket Kalshi Arbitrage Bot
Exploit pricing divergence between the world's two largest prediction markets: Polymarket (Polygon) and Kalshi (CFTC-regulated). Simultaneously lock in complementary outcomes for risk-neutral yields.
Crypto checkout via NOWPayments. Server-side price validation. 0 wallet custody.
How the Cross-Venue Arbitrage Engine Works
Unlike traditional spot crypto arbitrage, prediction market contracts settle to fixed values ($1.00 or $0.00). When price sums across venues drop below $1.00 minus trading fees, riskless value is locked in.
Continuous Orderbook Sync
Direct WebSocket connections stream Level 2 orderbook updates from Polymarket CLOB and Kalshi REST endpoints simultaneously.
Contract Alignment Engine
Normalizes contract resolution criteria, settlement dates and ticker semantics to ensure 1:1 contractual hedge integrity.
Fee & Slippage Simulator
Deducts taker fees, Polygon gas limits and Kalshi regulatory exchange fees before releasing signing keys to execute.
Atomic Two-Legged Fill
High-speed concurrent execution threads submit matching orders with automated timeout cancellation if one leg fails.
Production Configuration & Requirements
The Polymarket Kalshi Arbitrage Bot is delivered as a production-grade Docker application with full TypeScript and Python source code. It can be hosted on any standard Linux VPS (Ubuntu 22.04+ recommended) located close to venue gateways (US-East for Kalshi, Ashburn or Frankfurt for Polygon RPCs).
All positions are logged in real-time with an integrated SQLite/PostgreSQL audit trail and optional Telegram/Discord alert webhooks for executed arbitrage orders, daily P&L summaries, and margin warnings.
| Supported Venues | Polymarket (CLOB) & Kalshi (REST / WS) |
| Network / Blockchain | Polygon (MATIC/POL) + USD Clearing (Kalshi) |
| Infrastructure | Dedicated Linux VPS (2 vCPU, 4GB RAM minimum) |
| Execution Speed | Sub-15ms socket dispatch |
| Licensing Model | Perpetual license, full source, no monthly royalty |
Get Instant Access
Deploy your private prediction market arbitrage stack today. Download code and setup instructions immediately after verified crypto checkout.
Frequently Asked Questions
How much capital is required to start running the bot? +
The bot can trade with as little as $500–$1,000 allocated on each venue ($1,000–$2,000 total). For institutional efficiency and to capture large blocks before smaller retail traders, $5,000 to $25,000+ split across Polymarket and Kalshi is recommended.
What happens if an order fills on Polymarket but Kalshi moves? +
The bot includes configurable risk controls for partial fills: Immediate-or-Cancel (IoC) orders, maximum unhedged tolerance limits, and an emergency unwinding routine that liquidates the unhedged leg if the opposing order fails to match within a designated millisecond threshold.
Are updates and documentation included with the purchase? +
Yes. Each license includes complete documentation, deployment walk-throughs, environment template files, and access to stable releases and venue API adapter updates.
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