Quick Overview
Dome is a unified API and developer toolkit that connects Python and TypeScript applications to real-time and historical orderbook data from prediction markets like Polymarket and Kalshi.
About Dome
What is Dome?
Dome is a unified API and developer toolkit for prediction markets. It connects developers to data from platforms like Polymarket and Kalshi through a single integration. The service provides access to historical orderbook records and pricing information that is not always available directly from market providers.
The tool has a software development kit for TypeScript and Python. Users get real-time updates for trades and market moves via webhooks or websockets. Polymarket acquired the company to support its technical infrastructure for market data.
Key Features
Unified Market Access
This tool provides a single SDK to connect with multiple prediction markets. It integrates data from platforms like Polymarket and Kalshi into one interface.
Historical Orderbook Data
The API gives users access to pricing history and past orderbook states. Traders use this information to backtest strategies and perform market analysis.
Real-Time Monitoring
Webhooks and websockets deliver immediate updates for trades and market moves. The system tracks specific traders or markets as events happen.
Developer Toolkit
The platform includes libraries for TypeScript and Python. These tools allow developers to fetch live market data and orderbook bids with a few lines of code.
Pros & Cons
Pros
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Unified market integrationSingle SDK connection covers data from Polymarket and Kalshi so developers avoid multiple platform integrations.
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Historical orderbook accessThe API retrieves past pricing and limit order data for use in backtesting and market analysis.
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Real-time tracker hooksWebsockets deliver live updates for specific trades or market moves as they happen across different platforms.
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Granular execution logsThe system provides detailed records of historical trades not always available from the primary market providers.
Cons
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Acquisition riskThe team is joining Polymarket and this change in ownership creates uncertainty regarding future support for competing platforms like Kalshi.
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Limited platform selectionThe service only lists support for two specific providers while many other prediction markets remain outside the unified API.
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Developer onboarding hurdlesAccess requires a manual onboarding process or contact with the team because the dashboard is not open for immediate public use.
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External dependencyData reliability rests entirely on the uptime and API stability of the underlying market providers.
Frequently Asked Questions
Dome is a company that provides a unified API and SDK for prediction markets. It connects developers to data from platforms like Polymarket and Kalshi.
The API supports Polymarket and Kalshi. It also plan to support more platforms in the future.
Yes. The tool provides access to historical orderbook and pricing data. This data is available for backtesting strategies and market analysis.
The platform offers webhooks and websockets for real-time updates. Users track trades, positions, and market moves as they happen.
The documentation shows support for TypeScript and Python. Developers install the unified SDK to manage multiple market integrations.
The company is onboarding developers now. Dome also recently joined Polymarket through an acquisition.
The API fetches live trades and deep historical records. It also displays live orderbooks with bids and asks for specific market outcomes.
