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Get a dedicated desktop app for River Markets on Mac, Windows, and Linux with WebCatalog Desktop.
- Launch River Markets directly from your Dock or taskbar.
- Work without distractions in a dedicated window, separate from your browser tabs.
- Stay signed in to multiple River Markets accounts and switch between them without logging out.
River Markets is a professional execution and portfolio management platform for prediction markets. It provides a unified trading terminal and API for accessing supported venues, including Kalshi, Polymarket, and Polymarket US, with consolidated market data, orders, positions, fills, and profit and loss reporting. ([rivermarkets.com](https://www.rivermarkets.com/)) The platform includes multi-book trading, direct order placement and management, smart routing, basket trading, subaccounts, and execution tools such as iceberg, peg, take-profit, and stop-loss orders. Traders can view multiple order books, manage positions across venues, and organize strategies or capital through separate subaccounts. ([rivermarkets.com](https://www.rivermarkets.com/)) River Markets also offers REST and WebSocket APIs, standardized contract identifiers, locally signed requests, real-time market and order streams, and an official typed Python SDK with synchronous and asynchronous support. It is designed for hedge funds, proprietary trading firms, and professional traders seeking centralized prediction market trading, automation, order management, and portfolio visibility without maintaining separate integrations for each venue. ([rivermarkets.com](https://www.rivermarkets.com/))
Disclaimer: WebCatalog is not affiliated, associated, authorized, endorsed by or in any way officially connected to River Markets. All product names, logos, and brands are property of their respective owners.
