Kalshi Market Data Is Live on DoubleZero Edge Over Multicast Fiber

DoubleZero launched Kalshi's live order book on DoubleZero Edge on August 12, 2026, making it the first prediction market to distribute its market data over a multicast network and the second venue on Edge after Solana.

DoubleZero Edge is a low-latency market-data transport layer. It carries exchange and blockchain feeds over DoubleZero's dedicated fiber network instead of the public internet, and it delivers them by multicast, the same distribution model NYSE, NASDAQ, and the CME have used for decades.

Every actively traded sports event contract and every crypto perpetual futures market Kalshi lists is available to Edge subscribers today, with full book depth, on one connection.

"DoubleZero Edge brings institutional-grade infrastructure into the hands of prediction-market traders with software-defined access. Kalshi coming online shows that Edge optimizes market data for any venue, onchain or off."
— Austin Federa, Co-founder of DoubleZero

Four Kalshi feeds are live on Edge today

The initial rollout covers Kalshi's two most liquid categories, sports event contracts and crypto perpetual futures, at both depth levels:

Sports order book (L2). The complete order book for every sports market Kalshi lists, every price level, on one subscription. Aimed at market makers and serious traders.
Crypto perps order book (L2). The complete resting book for Kalshi's crypto perps markets, full price-level depth normalized into a single book, updated live.
Sports top of book and trades (L1). Best bid, best ask, and every trade for every sports market. Built for tracking price action when you don't need depth.
Crypto perps top of book and trades (L1). Best bid, best ask, and every trade on the crypto perps markets. Lightweight and fast to integrate.

Every new sports and crypto perps market Kalshi lists appears in the feed automatically, and markets stay in the feed until they settle. Historical data is planned for a future release, so everything at launch is real-time.

What does Edge give you that Kalshi's public API doesn't?

Until now, the only way to get Kalshi data was the same public API everyone else connects to. Kalshi offers REST for reference data and snapshots plus a signed WebSocket for live deltas and trades, which is the right tool for a trading app, a dashboard, or a research notebook.

A latency-sensitive strategy run at scale is a different job, and DoubleZero points to three properties of any public-internet API path that get in the way:

It's behind a CDN. You land on the nearest CDN edge, so the distance between the matching engine and your servers is outside your control.
It's unicast and metered. Every consumer is a separate connection served one copy at a time, inside a request budget. Adding coverage or adding machines pushes against that model.
It leaves normalization to you. Kalshi quotes a Yes side and a No side for every contract. Turning that into one clean book per market, seeded from snapshots and kept in sync, is work every consumer repeats on its own.

Edge answers each of those. The feed is sourced directly from Kalshi and travels dedicated fiber rather than traversing a CDN edge. The liquid market set arrives on one feed with no per-stream cap and no per-request budget, so adding a subscriber or adding markets to a group costs the publisher almost nothing. It also sits outside Kalshi's shared rate-limit budget for reads, which leaves your API tokens free for orders.

The feed also handles normalization, folding Yes and No into one consistent book per market, with fixed-point prices and a self-describing reference channel. Snapshots cycle continuously in the stream, so a late join or a dropped packet rebuilds full book state from the feed itself. There's no separate snapshot channel to wire up.

Because it's the same format as every other Edge venue, a cross-venue strategy integrates once and extends to the next venue for free.

Multicast, proven on Solana first

Under multicast, the publisher emits data once and the DoubleZero network replicates it to every subscriber simultaneously. No per-stream limits, no server-level fan-out, and no cost curve that climbs with each new subscriber.

DoubleZero was the first to bring multicast to blockchain, and Solana is where it was proven. On DoubleZero's Solana shreds feed, the network delivers data faster than the public internet and arrives first on more than 90% of slots for participating leaders. Kalshi is that same architecture pointed at an off-chain venue.

Solana shreds feeds are available over the same Edge connection, so a desk already running a Solana strategy can add Kalshi books to its existing subscription rather than standing up a second pipe.

DoubleZero frames Kalshi as the network's first step outside crypto and its proof that Edge is venue-agnostic. By that logic, anything with competitive markets and a real-time signal is a candidate to follow.

Why is Kalshi waiving its revenue share?

Edge data publishers normally take a cut of post-burn subscription fees. Kalshi is skipping its cut for the first year. What you pay covers delivering the data across the network, not a license to use the data, so the entry price stays low while firms wire the feed into production.

Kalshi has reason to want the volume. The price of one of its contracts is a live, tradable probability on an economic indicator, a policy move, a game, or a crypto pair. The desks trading those probabilities now look a lot like the desks trading everything else. Andy Ross, Head of Institutional at Kalshi, said as much in DoubleZero's announcement thread: "The firms participating on Kalshi today are increasingly the same top-tier names as those in traditional markets. They're looking for institutional-grade infrastructure everywhere they trade."

So if you're a market maker parsing Kalshi's JSON book by hand, a prop desk rationing API tokens between data and execution, or a bot builder wiring up per-market subscriptions and rebuilding books yourself, this is the plumbing you were going to build anyway.

Kalshi market data on DoubleZero Edge is available today by subscription, with pricing on request.