Dome (YC F25) – Prediction market data aggregator

Prediction markets are the cleanest opinion poll money can buy.

Prediction markets are exploding, but the data is a mess.

Polymarket, Kalshi, Metaculus, and others all have different endpoints, formats, and auth flows. If you want clean odds across platforms, you end up stitching everything together by hand.

Dome is the Plaid for prediction markets.

Here is the simple idea:

Step 1. You plug into one unified API.

Step 2. You get real-time and historical odds in a common schema, with websockets and tooling for hedging and execution.

Step 3. You build forecasting dashboards, trading bots, research tools, or sports betting apps without maintaining five fragile integrations.

More than 50 developers have already built on Dome, from quant traders to sportsbooks and forecasting products. YC F25 backing is a nice signal, but if prediction markets become a standard signal for how the world is pricing risk, someone has to clean and unify the pipes.

Zoom out a few years.

- Every portfolio dashboard could show "market implied odds" next to analyst price targets.

- News apps could add a tiny probability widget under each headline.

- Risk committees could flip through decks where every scenario has a live prediction market line next to the internal model.

- AI agents and co-pilots will stream Dome data as a live context feed when they decide what to buy, hedge, or ignore. Early agents are already doing this.

If that future happens, someone has to be the plumbing that makes "what the market thinks" a first-class signal inside every app.

Dome wants that role.

Every day, we highlight one fintech on the FinBox Solutions page.

The project with the most votes becomes Fintech of the Week and lands here on my personal profile.

Suppose you had a clean API for global prediction market odds. What would you build first?

#FintechOfTheWeek #predictionmarkets #API #YC

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