MarketMaster

Live edge terminal for prediction markets on Kalshi and Polymarket

Automation & Agents AI AgentsFreemium

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$12.99/moStarting price

2.4KMonthly visits

6Popularity

About MarketMaster

MarketMaster continuously scans thousands of prediction markets across Kalshi and Polymarket, modeling a fair value for each and surfacing mispriced opportunities ranked by expected value. The platform provides a unified terminal in the browser that includes an opportunity scanner, an expected-value engine, cross-platform arbitrage detection, and a smart-money tracker. Users can monitor $10k+ trades from sharp money minutes after execution and set smart alerts to receive email notifications when prices or edges cross predefined thresholds. The Pro tier adds a cross-platform arbitrage feed, unlimited watchlists and alerts, and a trade journal that auto-imports real trades to track realized P&L, win rate, and skill rating. The tool is designed for traders who want to identify and act on mispriced markets efficiently without requiring exchange passwords, as it uses read-only API keys or public wallet addresses. For developers, MarketMaster offers a read-only REST API, WebSocket stream, and official Python and JavaScript SDKs, including an MCP server for integration with AI coding assistants.

Key features

Live edge scanner with EV ranking
Expected-value engine with fair-value modeling
Cross-platform arbitrage detection
Smart-money whale tracking
Smart alerts and watchlists
Trade journal with P&L analytics
REST API and WebSocket stream
MCP server for AI coding assistants

Use cases

Identifying mispriced prediction markets for trading
Monitoring smart-money activity to follow institutional traders
Building automated trading bots using the API

Pros

Continuously ranks markets by expected value with fair-value modeling
Cross-platform arbitrage detection between Kalshi and Polymarket
Smart-money tracker for $10k+ trades with real-time updates
Trade journal with auto-import and performance analytics
Read-only API and WebSocket stream for developers

Cons

No free tier for API usage beyond 1,000 requests per month
Requires separate Pro subscription for advanced features like arbitrage feed
Limited to prediction markets on Kalshi and Polymarket only
Alerts in free tier are delayed compared to Pro

Frequently asked questions about MarketMaster

What does MarketMaster do?

MarketMaster is a live edge terminal for prediction markets that continuously scans thousands of markets across Kalshi and Polymarket, models fair values, and surfaces mispriced opportunities ranked by expected value.

Who is MarketMaster designed for?

The tool is designed for traders who want to identify and act on mispriced prediction markets efficiently, as well as developers who need real-time market data for integration into their applications.

Does MarketMaster require exchange passwords to use?

No, MarketMaster uses read-only API keys or public wallet addresses and never requires exchange passwords, ensuring funds remain secure.

What features are included in the free plan?

The free plan includes full access to the scanner and analyzer, with three watchlists and three alerts, allowing users to evaluate markets without cost.

How does MarketMaster calculate arbitrage opportunities?

Arbitrage is priced using live ask prices from each venue, incorporating exact fee models to reflect executable prices rather than midpoints.

Can developers integrate MarketMaster into their own tools?

Yes, MarketMaster offers a read-only REST API, WebSocket stream, and official Python and JavaScript SDKs, including an MCP server for integration with AI coding assistants.