--- url: "https://predictiontoolkit.com/tools/assymetrix/" publisher: "PredictionToolkit" dateModified: "2026-11-02" --- [← Data APIs]() ![Assymetrix logo]() Data API # Assymetrix: match each data endpoint to its plan allowance Assymetrix standardizes market metadata and currencies across supported venues. Developers can query events, price series, trades, books and wallet analytics while retaining native venue identities and checking data freshness. [**3.5**/ 5Editorial rating]() [Editorial assessment]() [Open the developer data portal]() data.assymetrix.com **Available on:** Web · API **Pricing:** [See plans and costs ↓]() [Screenshots]() [Explore alternatives]() [Data APIs]() [Historical data]() +3 more [Streaming data]() [On-chain data]() [Wallet tracking]() ## Screenshots and interface Product preview1 / 2 The available developer data product. ## What is Assymetrix? The developer portal is an available product with Free, Developer and Pro tiers. Its broad archive description does not override endpoint-specific history windows: general history, snapshots and historical books have separate entitlements. Confirm the intended candle interval and book window before choosing a plan. The main platform preview presents a terminal, alerts and copying behind a waitlist. That presentation is distinct from the API and does not establish current copy-trading access. Likewise, advertised WebSocket delivery should be checked against the actual subscription. ### Who it is for - Developers replacing multiple venue adapters. - Researchers needing history and trades. - Dashboard teams needing canonical identities. ## Data and API methods - **Canonical events and markets** Query events, markets and tags with shared schemas. - **Freshness checks** Inspect recency beside retrieved records. - **OHLCV series** Free offers hourly/daily candles; paid tiers add intraday intervals. - **Trade and fill records** Use paginated trades mapped to readable market identities. - **Plan-specific book data** Request latest snapshots or entitled historical windows. - **Streaming product** Check WebSocket access against the chosen subscription. - **Wallet analytics** Inspect wallet activity and PnL through the data product. - **Waitlisted platform** Terminal, alerts and copying are a separate preview. ## Integration tasks ### Build a venue browser Start with canonical events, retain native IDs and check freshness before displaying quotes. ### Choose a history tier Map each required candle, trade and book endpoint to its specific allowance. ### Prototype on Free Use metadata and hourly/daily series before increasing throughput. ## Pricing and total cost The portal publishes Free, Developer and Pro API tiers; business, enterprise and academic options have separate sections. ### Free US$0/month - 10,000 requests/month; 1/second. - 1 API key; REST only; 30-day history; hourly/daily OHLCV. ### Developer US$49/month - 1.5 million requests/month; 25/second. - 3 keys; 365-day general history. - Intraday OHLCV, 90-day snapshots, market trades and latest book. ### Pro US$199/month - 7.5 million requests/month; 100/second. - 10 keys; unlimited general history allowance. - Historical order books retain the stated 90-day limit. ## API access and setup 1. Choose a portal plan and create an API key. 2. Query one event and its markets; check freshness and native IDs. 3. Add history within per-second limits and confirm streaming/book entitlements. ## Useful links - [View the separate platform preview]() ### What to check - Free excludes streaming and has a 30-day window. - General history does not override separate book/snapshot limits. - The terminal waitlist is separate from available API access. A closer look ## Ratings & reviews Editorial rating **3.5**/ 5 0 user reviews PredictionToolkit editorial ### Our take on Assymetrix Canonical schemas, freshness and published tiers give developers a clear starting point. Endpoint coverage and streaming access still need task-specific testing. **Assessment criteria:** Task usefulness, documented scope, setup clarity, and access and cost transparency. **Assessment date:** 2026-10-05 **Documentation reviewed:** 2026-10-01 Documentation-based assessment. [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]() ![Adanos Polymarket stock-sentiment API and ticker-discovery entry]() ![Adanos Market Sentiment API logo]()[Adanos Market Sentiment API]() Data API**3.5**Editorial Compare stock-related prediction activity with social and news sentiment using shared API access. - Access API · CLI Also in APIs and Data Providers. ![Crosswire prediction-market API page with a request example.]() ![Crosswire logo]()[Crosswire]() Data API**3.5**Editorial Structured settlement comparisons for covered Polymarket and Kalshi contract pairs. - Access API · MCP Settlement-aware market matching. ![FinFeedAPI products and integration entry points]() ![FinFeedAPI Prediction Markets logo]()[FinFeedAPI Prediction Markets]() Data API**3.5**Editorial A normalized prediction-market data service for dashboards, historical replay and AI clients. - Access API · MCP Metered market-data access. ## Frequently asked questions about Assymetrix ### Is there a free plan? 10,000 monthly requests, 1 per second and 1 key. ### Can several venues share a schema? That is the canonical market API’s purpose. ### Are Pro historical books unlimited? General history is unlimited, but the book entitlement is 90 days. ### Is the consumer terminal open? The main platform uses a waitlist; the developer API is separate. In this profile