Dome is a unified API and developer toolkit that gives programmers, data scientists, and quantitative traders a single SDK to access historical data and real-time updates from major prediction markets like Polymarket and Kalshi.
About Dome
What is Dome?
Dome is a unified API and developer toolkit built specifically for prediction markets. It gathers market data from major platforms like Polymarket and Kalshi and puts it into one easy system. Previously, developers had to write different code for every single platform. Now, Dome provides a single system to access them all. Backed by Y Combinator and recently acquired by Polymarket, Dome offers a stable and direct way to read complex market data without the hassle.
Who is it for?
Dome is designed for programmers, data analysts, and market researchers. It is perfect for:
- Software Developers looking to build custom applications, tracking tools, or bots without managing multiple server connections.
- Data Scientists who need deep historical data and granular market records to run accurate market analysis.
- Quantitative Traders who require exact pricing data and historical orderbooks for backtesting strategies.
If you need reliable numbers and event tracking from prediction markets to build your software or test your data models, this tool is fully built for your needs.
How it works?
Dome works by acting as a simple bridge between your code and the different prediction platforms. You start by installing the unified SDK into your coding environment, such as TypeScript or Python. After adding your API key, you can write simple commands to connect to multiple markets at the exact same time.
The system gives you data in two main ways:
- Historical History: You can send an API request to fetch past orderbook records and exact pricing data from a specific time and date. This lets you see exactly how a market event changed in the past.
- Real-Time Updates: For live action, Dome uses websockets and webhooks. Instead of making your code ask the server for updates over and over again, Dome instantly pushes new live trades, position changes, and market moves directly to your application as they happen.
