Buy low on one market.Sell high on another.

Scan Polymarket, Kalshi, Opinion, and Novig in real time.
Lock in arbitrage and +EV plays before the odds move.

PolymarketKalshiOpinionNovig

Will Lionel Messi win the World Cup Golden Boot?

Lionel Messi

NO
KalshiKalshi
Price66¢
Cost$66.00
Spread
4.2%
YES
PolymarketPolymarket
Price30¢
Cost$30.00
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What is ArbBets?

ArbBets is a prediction markets arbitrage finder that scans Polymarket, Kalshi, and Opinion for price discrepancies. We find 100+ arbitrage opportunities daily. Plans start at $59/month with API access available for automated trading.

Live Free Arbitrage

Polymarket vs Kalshi vs Opinion, scanned continuously

Trade with Confidence

Prediction markets arbitrage backed by math, not gut feelings

ArbBets vs Parlays

$1000 bankroll tracked over 12 months

Features

Trade Prediction Markets with an Edge

Real-time tools to find arbitrage and value plays across Polymarket, Kalshi, and Opinion.

Cross Markets Arbitrage

Scan Polymarket, Kalshi, and Opinion for price gaps. 100+ opportunities daily with spreads ranging from 2-8%.

Sports Arbitrage

Live arbitrage across game lines and props. Lock in a margin no matter the outcome.

Prediction Markets Odds

Compare live prices across Polymarket and Kalshi side-by-side. One screener to track every market.

Weather Edge Finder

NWS-anchored forecasts vs. market prices. Spot mispriced Kalshi and Polymarket weather markets in real time.

ArbBets API

Build your own AI arbitrage bot. Clean, normalized data from Polymarket and Kalshi. Automate your trades.

Liquidity Rewards Agent

Self-hostable Polymarket market-making agent. Earn liquidity rewards with your keys, your VPS, your risk limits.

Spot +ev plays.

Arbitrage scanner for prediction markets. Scan multiple platforms and spot +ev opportunities.

Frequently Asked Questions

Still have questions?

Spot Arbitrage Plays.

Arbitrage scanner for prediction markets. Scan multiple platforms and spot +ev opportunities.