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Dome

A unified API for prediction markets, like Kalshi and Polymarket

Dome makes it easy to build on prediction markets like Polymarket and Kalshi. We provide the developer infrastructure to access, analyze, and build on prediction markets. With our unified API, developers can access live and historical data, including granular datasets not available natively, across multiple platforms at once. Dome makes it simple to trade, embed market data into products, and deploy strategies across multiple platforms through one interface.
Active Founders
Kurush Dubash
Kurush Dubash
Founder
Kurush is the co-founder and CEO of Dome. He's an engineer with a degree from Berkeley and has a deep expertise in blockchain and prediction markets. Kurush spent 4+ years as a founding engineer at Alchemy where he helped grow the company from 10 to 250 people and a $10 billion valuation. He and his co-founder we personally responsible for helping Polymarket scale on the blockchain during the 2024 election. Together they have a deep understanding of infrastructure and high performance systems.
Kunal Roy
Kunal Roy
Founder
Founding Engineer Alchemy, prev Engineer at Cruise, Google. He's an engineer with a degree from Berkeley and has a deep expertise in blockchain and prediction markets. Kunal spent 5+ years as a founding engineer at Alchemy where he helped grow the company from 10 to 250 people and a $10 billion valuation. He and his co-founder we personally responsible for helping Polymarket scale on the blockchain during the 2024 election. Together they are building domeapi.io, the prediction market api
Company Launches
Dome - A unified API for prediction markets
See original launch post

Hi everyone - we’re Kurush and Kunal - and we’re building Dome 👋

TL;DR

Dome is a unified API for prediction markets, like Polymarket and Kalshi. We allow users to trade and analyze data across multiple platforms at once. Over 50+ developers are already building on Dome.

Ask: Building or trading in prediction markets? Contact kurush@domeapi.com or DM us.

https://youtu.be/eYWb3hpxSnE

Prediction Markets
Prediction markets are a new financial instrument that combines news, polls, and expert opinions into a single value that represents the market’s view of an event’s odds. In the past few years, platforms like Polymarket and Kalshi have processed tens of billions in volume, giving real-time insight into collective public belief.

Problem

Fragmented
The same markets are scattered across multiple platforms
. Fragmented formats and liquidity make them difficult to analyze or trade efficiently.

Siloed Data
Accessing reliable data is a challenge.
Every platform exposes different pieces of information, in different formats, leaving traders without a unified historical view.

Infrastructure
Primitive tools build primitive products. Developers do not have the adequate infrastructure to grow this ecosystem.

Solution

One Market View
Dome unifies prediction markets across platforms into a single, consistent interface.

  • Matches identical markets across multiple platforms
  • Streams real-time data through one API
  • Integrate once to access every platform

Complete Data
Dome delivers both real-time and historical data across every platform, giving traders and developers the insight to analyze past performance and react instantly to shifting markets.

Empowered Builders
Dome gives developers the tools to build exponentially on top of prediction markets.

  • Multi-language SDKs for effortless development
  • Real-time streaming architecture for live insights and updates
  • Unified on-chain and off-chain data pipeline for consistent accuracy

The Team

Kurush (CEO) - Kurush is an engineer with deep expertise in blockchain infrastructure and prediction markets. As a founding engineer at Alchemy, he spent over four years helping scale the company from 10 to 250 people and a $10B valuation. He and his co-founder worked closely with Polymarket, one of Alchemy’s largest blockchain customers, to build custom infrastructure that ensured they scaled seamlessly during the 2024 election.

Kunal (CTO) - Kunal spent 5+ years as a founding engineer at Alchemy and has comprehensive experience in scalable infrastructure having worked extensively on blockchain integrations across chains, virtual machines, and rollups. Early in his career at Google, he worked on internal B2B payment systems, helping move nine figures monthly across global regions.

YC Photos
Dome
Founded:2025
Batch:Fall 2025
Team Size:2
Status:
Active
Location:New York
Primary Partner:Tom Blomfield