TLDR Polymarket has acquired Dome, a Y Combinator-backed startup building a unified API for prediction markets Dome raised $500K from Y Combinator and $4.7 million in seed funding before the acquisition The deal gives Polymarket stronger developer tools to connect multiple prediction market platforms This is Polymarket’s first acquisition focused on developer infrastructure, following its earlier QCEX acquisition Polymarket has been expanding rapidly, with partnerships at Yahoo Finance, Google Finance, MLS, and the NHL
Polymarket has acquired Dome, a startup backed by Y Combinator that was building a unified API for prediction markets. Both companies confirmed the deal on X on Feb. 19, though no financial terms were shared.
We’re committed to creating the best developer experience in prediction markets.
Building a world class experience requires world class talent…
Welcome to Polymarket, @GetDomeAPI. pic.twitter.com/JmzBDssYMH
— Polymarket (@Polymarket) February 19, 2026
Dome was part of Y Combinator’s Fall 2025 cohort. The startup was developing a single integration layer that lets developers access live and historical data across multiple prediction market platforms.
The tool was designed to make it easier to trade, embed market data into products, and run strategies across different platforms through one interface. Dome had raised $500,000 from Y Combinator and an additional $4.7 million in seed funding.
The startup was co-founded by Kunal Roy and Kurush Dubash, who both previously worked as founding engineers at Alchemy. Dubash confirmed the deal on X, writing that there was “no better place” to have an impact in prediction markets than Polymarket.
Neither company shared details about Dome’s future roadmap inside Polymarket or how the team will be integrated going forward.
Polymarket’s Acquisition History
This is Polymarket’s first acquisition focused on developer tools. The company’s only other known acquisition was QCEX, a derivatives exchange and clearinghouse