
According to both companies, the Feb. 19 acquisition brings Dome’s unified prediction market API capabilities into Polymarket’s ecosystem, enabling streamlined developer access across multiple platforms like Kalshi.
Polymarket confirmed on Feb. 19, 2025, that it has acquired Dome, a Y Combinator-backed startup specializing in unified APIs for prediction market platforms. Dome’s technology allows developers to access and build tools across multiple services, including Polymarket and Kalshi. This marks Polymarket’s second official acquisition and strengthens its strategy to enhance cross-platform integration, interoperability, and developer resources within its ecosystem.