--- url: "https://predictiontoolkit.com/tools/polyrouter/" publisher: "PredictionToolkit" dateModified: "2026-11-02" --- [← Data APIs]() ![PolyRouter logo]() Data API # PolyRouter: one API for seven prediction-market platforms PolyRouter normalizes prediction-market data from Polymarket, Kalshi, Manifold, Limitless, ProphetX, Novig and SX.bet. REST endpoints, an interactive tester and MCP support serve developers building discovery and research tools. [**3.5**/ 5Editorial rating]() [Editorial assessment]() [Open PolyRouter and API tester]() polyrouter.io **Available on:** API · MCP **Pricing:** [See plans and costs ↓]() [Screenshots]() [Explore alternatives]() [Data APIs]() [Historical data]() +2 more [MCP servers]() [Sports research]() ## Screenshots and interface Product preview1 / 2 The public tester before submitting a market request. ## What is PolyRouter? A shared response format reduces the separate venue formats an application must handle. Listings retain platform and status filters and the market/event/series hierarchy. Books, historical trades, price series and supported public-user endpoints add detail after market discovery. Sports endpoints give games a standardized identity using teams, date and league, alongside league, award and futures discovery. Keep the original venue and contract identity in any comparison: normalized data does not equalize settlement rules, and Manifold’s play-money markets are included beside real-money venues. ### Who it is for - Developers building cross-platform market discovery. - Sports applications using standardized game IDs. - Builders connecting market research to AI assistants through MCP. ## Features and coverage - **Markets, events and series** Filter listings by venue and status and follow the event hierarchy. - **Books and trades** Retrieve order books and historical trades for supported markets. - **Price history** Request market price series through the same API. - **Sports discovery** Find leagues, games, awards and futures with standardized game IDs. - **Public user data** Use supported public-profile and user-trade endpoints. - **MCP connection** Connect market data to compatible assistant workflows. - **Interactive API tester** Try selected Markets and Price History examples without your own key. ## Workflows with PolyRouter ### Build a cross-venue watchlist Request open markets by platform, retain venue identity and refresh price history for selected contracts. ### Map games to markets Discover games, store standardized game IDs and fetch their markets and odds. ### Prototype an assistant Use the documented MCP setup while keeping venue and contract identity visible in research responses. ## Pricing and total cost The documented open beta is free with a shared limit of 100 requests per minute for all users. Higher-volume requirements are directed to the team. ## Getting started **Before you start:** Settlement rules still differ between venues. 1. Create an account and obtain your API key. 2. Send the key in the X-API-Key header. 3. Start with a small /markets request filtered to Polymarket. 4. Add pagination and the book, history or sports endpoints you need. 5. Follow the MCP documentation for assistant integration. A shared response format does not make venue settlement rules equivalent. [Read PolyRouter documentation and limits]() ## Useful links - [Join the PolyRouter Discord community]() ### What to check - Settlement rules still differ between venues. - Manifold play-money markets appear alongside real-money venues. - The documented shared rate limit is 100 requests per minute. A closer look ## Ratings & reviews Editorial rating **3.5**/ 5 0 user reviews PredictionToolkit editorial ### Our take on PolyRouter The unified API and public tester make multi-platform exploration accessible. Beta access, shared request limits and mixed play-money and real-money markets still require deliberate application design. Based on documented features, setup and access terms. [How we rate]() ### User reviews 0 The main score switches to user ratings after 5 published reviews. **Be the first to share your experience** A specific example helps the next person choose the right tool. ## Related tools [Browse category]() ![ARBITER unified API entry page and sample market view]() ![ARBITER logo]()[ARBITER]() Data API**3.5**Editorial Query normalized markets, historical books, wallet analytics and possible event matches across Polymarket and Kalshi. - Access API Normalized multi-venue data and streaming. ![OddsPipe cross-venue market and spread API overview]() ![OddsPipe logo]()[OddsPipe]() Data API**3.5**Editorial Find paired contracts, filter match confidence and investigate cross-venue price differences through REST or Python. - Access API Matched-pair data and spread-oriented API tools. ![PMXT API entry page with an SDK example]() ![PMXT hosted API logo]()[PMXT hosted API]() Data API**3.5**Editorial Search and match markets across venues, retrieve history and use supported trading methods with one hosted key. - Access API Another unified API that also documents trading methods. ## Frequently asked questions about PolyRouter ### Which platforms are covered? Polymarket, Kalshi, Manifold Markets, Limitless, ProphetX, Novig and SX.bet. ### Can I try examples before getting a key? Yes. The site has an interactive tester for selected market and price-history examples. ### Are sports schedules available? Sports endpoints include leagues, games, awards and futures. In this profile