Polymarket Scanner watches the odds so you don't have to. It surfaces arbitrage opportunities, tracks price movement, and alerts you when edge appears.
Prediction markets are information-rich but time-consuming to monitor. Polymarket Scanner automates the tedious parts.
Finds contracts where YES + NO prices sum to less than $1.00, or multi-outcome markets with guaranteed profit opportunities.
Compares market prices against aggregated polling data, model predictions, and historical base rates to surface mispriced contracts.
Monitors price changes over time. Flags sharp moves that may indicate new information or manipulation.
Tracks liquidity depth and trading volume. Helps you size positions appropriately and avoid thin markets.
Define the markets you care about. Get alerts only for opportunities that match your criteria.
Output to CSV, JSON, or webhook. Pipe to Slack, Discord, or email for real-time notifications.
Run a scan and see opportunities ranked by edge.
Free gives you basic scanning. Pro adds real-time monitoring, historical data, and advanced analytics.
| Feature | Free | Pro ($29) |
|---|---|---|
| Market scanning (on-demand) | Yes | Yes |
| Arbitrage detection | Yes | Yes |
| Basic edge scoring | Yes | Yes |
| CSV/JSON export | Yes | Yes |
| Top 10 results per scan | Yes | Unlimited |
| Continuous monitoring (daemon) | — | Yes |
| Webhook / Slack / Discord alerts | — | Yes |
| Historical odds data & charting | — | Yes |
| Custom watchlists | — | Yes |
| Volume & liquidity depth analysis | — | Yes |
| Multi-platform support (Kalshi, Manifold) | — | Yes |
| Portfolio tracking & P&L | — | Yes |
| Priority support | — | Yes |