Predexon unifies Kalshi and Polymarket data in single API feed
Predexon has launched a unified data API that normalizes Kalshi event-contract feeds into the same schema as its existing Polymarket product. The offering includes real-time WebSocket streams, historical data to 2020, tick-level orderbook history, wallet analytics, and mempool-aware trade pushes with latency as low as five seconds. Predexon is a data infrastructure vendor, not a trading venue. The product targets developers and traders who want to build across both regulated and crypto-native prediction market platforms without maintaining separate data pipelines.
Predexon is betting that traders and developers want to treat Kalshi and Polymarket as one surface rather than two separate stacks. That assumption only holds if both platforms survive the regulatory squeeze now tightening around them. The unified feed lets algorithmic strategies span regulated and crypto-native venues, but it also concentrates pipeline risk: a ban on sports event contracts or a state delisting of either platform would break part of the schema customers paid to integrate.
For Predexon, the product is a land grab in data infrastructure before larger exchanges or the platforms themselves launch competing portals. The first venue to release an institutional-grade API of its own could make third-party normalization obsolete. Kalshi has already opened an institutional data portal. Predexon's window is narrow. It must prove that cross-platform normalization delivers enough alpha to justify the extra vendor layer, or it risks becoming a bridge to nowhere.