Gemini just made it meaningfully easier for developers to build on top of its prediction markets. The exchange released a standardized sports market taxonomy through its Predictions API, introducing a structured classification system that organizes sporting events by sport type, market family, and participant details.

The practical upshot: instead of reverse-engineering what a prediction contract is actually about by parsing its title or ticker, developers can now query clean, structured data.

What the taxonomy actually does

At the core of the release is a new sportsMarket object. Think of it as a standardized label that gets attached to every sports prediction event on the platform.

The object includes several key fields: sport, type, subject, and scope, with an optional metric field for more granular filtering. These aren’t just cosmetic tags. They’re the building blocks for any developer trying to create trading tools, data dashboards, or automated strategies on top of Gemini’s prediction markets.

The market family classifications cover the full spectrum of what sports bettors would recognize: moneyline, spread, total, prop, and futures. Coverage spans major sports including baseball, soccer, American football, and cricket.

The API now supports filtering with parameters like sport=american_football, sports_market_type=prop, and sports_market_metric=passing_yards. That level of specificity is a significant upgrade from the previous approach, where developers had to rely on parsed titles or provider-specific tickers to figure out what they were looking at.

The taxonomy operates at the event level rather than the individual contract level. So it classifies the game or matchup itself, not each yes/no contract tied to it. Users who want live contract data still need to hit the List Events endpoint, but the taxonomy gives them a much faster way to find the events they care about in the first place.

The regulatory backdrop that makes this possible

Gemini Titan, the exchange’s subsidiary, operates as a CFTC-designated Designated Contract Market. That approval, which led to the platform’s debut in December 2025, allows Gemini to legally offer yes/no event contracts on real-world outcomes to US customers. The contracts themselves started trading in early 2026, with a nationwide expansion of Gemini Predictions following shortly after.

Why developers and traders should pay attention

Market makers can automate pricing across similar event types. Analytics firms can aggregate data consistently. Trading bots can filter for specific market conditions without custom parsing logic for every new event listing.

No crypto tokens are involved in this particular release. This is pure infrastructure for CFTC-regulated event contracts denominated in dollars.

The risk is regulatory. The CFTC’s appetite for event contracts could shift, and the line between “prediction market” and “sports betting” remains legally ambiguous in many jurisdictions. State gaming commissions have not universally embraced the idea that a federally regulated DCM should be offering what looks a lot like sports wagering without a state gaming license.

Traders building strategies on this infrastructure should verify live market availability through the API’s List Events endpoint, as the taxonomy maps out the classification system but doesn’t guarantee that every possible event will have active contracts at any given time.