Apex Fintech Solutions announced on August 13, 2026, a partnership to integrate Kalshi's event contracts into its API infrastructure for client brokerages. The integration removes the need for firms to build their own futures commission merchant infrastructure or run separate development cycles. Apex provides the clearing and access layer; Kalshi supplies the event-contract markets. The deal expands Kalshi's distribution beyond direct accounts.

Kalshi is building a regulated prediction-market stack faster than rivals can match piece by piece. The Apex deal turns every brokerage on Apex's platform into a potential Kalshi distributor without those firms hiring compliance staff or standing up their own clearing. That lowers the cost of entry for regional brokerages and wealth platforms that have watched Robinhood's prediction-market revenue soar but lacked the capital to replicate its infrastructure. Polymarket and other CFTC-registered venues now face a distribution gap: they must either build similar API partnerships or accept that Kalshi's event contracts reach traders first through familiar brokerage accounts. The window to catch up shrinks as fall trading volumes approach. Whoever controls the API layer controls which platform gets the order flow.