Dome builds unified prediction market API

Dome is betting that prediction markets are still in the messy infrastructure phase, where the hard part is not demand but turning scattered raw market data into something builders and traders can actually use. That is the same opening Alchemy had in crypto. Early users need one clean API, faster reads, historical data, and routing across fragmented venues before the market can support larger apps and more institutional trading.

• In practice, the gap is concrete. Prediction market builders today have to pull different APIs, map the same event across venues, and handle different underlying architectures. Dome says it matches equivalent markets across Kalshi and Polymarket, aggregates depth, and routes orders to the best venue so users see one combined market instead of several thin ones.
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• That mirrors the early crypto tooling playbook. Blockchain developers originally had to run nodes, manage uptime, and work with raw chain data themselves. Companies like QuickNode, Infura, and Alchemy won by abstracting that pain into fast, developer friendly APIs, caching, indexing, and higher level endpoints.
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• The strategic implication is that Dome is positioning below the consumer brand fight. If Robinhood, DraftKings, Coinbase, Kalshi, and Polymarket all launch their own prediction products, fragmentation increases, not decreases, the need for a neutral infrastructure layer that standardizes data and execution across all of them.
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Over the next few years, the winners in prediction markets are likely to be both exchanges and the picks and shovels around them. As more apps, brokers, and niche regional operators enter, the infrastructure layer that makes markets look interoperable should become more valuable, much the way crypto infrastructure became essential once activity spread across chains, wallets, and apps.