Kalshi has connected its live order book to DoubleZero Edge, giving institutional trading firms a subscription-based feed for structured Level 1 and Level 2 data on the platform's sports-event contracts and crypto perpetual futures. The Aug. 12 rollout removes the need for firms to pull raw API data and rebuild the book internally, with Kalshi waiving its share of subscription fees for the first year so customers pay only network delivery charges while historical data remains planned for a later release. The initial coverage spans categories that account for 37.8% and 20.3% of Kalshi's weekly notional trading volume, respectively, and extends DoubleZero's low-latency market-data push after the foundation raised $28 million in March 2025 and later received an SEC no-action letter tied to its 2Z token. The infrastructure expansion comes as Kalshi fights state challenges to its sports contracts in Michigan, Kentucky and Nevada, while the CFTC argues those federally regulated event contracts fall under exclusive federal jurisdiction.