Monitoring markets in real time

Find Arbitrage Across Prediction Markets

PredictEdge scans Kalshi and Polymarket in real time, finds price gaps, factors in every fee, and shows you exactly where risk-free profit exists — before anyone else.

Free forever. No credit card required.

Features

Everything you need to find edge

From detection to execution, every tool a prediction market trader needs — in one dashboard.

Real-Time Detection

Continuous SSE-powered scanning surfaces arbitrage the instant spreads appear across platforms.

Cross-Platform Comparison

Side-by-side Kalshi vs Polymarket pricing on the same events, mapped automatically.

Fee-Aware Calculations

Both platforms' fee structures factored in — you see true profit, not misleading raw spreads.

Instant Alerts

Get notified via Discord, email, or webhook the moment profitable opportunities surface.

How it works

Three steps to risk-free profit

01

Detect spreads

Our engine continuously monitors prices across Kalshi and Polymarket, surfacing the moment a gap appears.

02

Calculate profit

Fees from both platforms are automatically factored in so you see real profit — not theoretical numbers.

03

Trade with confidence

Act on verified, fee-adjusted opportunities with full transparency into spread, cost, and expected return.

500+Markets monitored
100%Fee-adjusted profits
LiveSSE real-time updates

Start finding arbitrage today

Join PredictEdge and never miss a profitable spread across prediction markets again.

Free forever · No credit card required