# Splash API > Reference for the Splash prediction markets API. - [Introduction](https://docs.splashsports.com/introduction.md): What the Splash APIs cover and how this reference is organized. - [Overview](https://docs.splashsports.com/predictions/overview.md): Base URLs, caching, the included block and the conventions every Predictions API response follows. - [Enumerations](https://docs.splashsports.com/predictions/enums.md): Every fixed set of values the Predictions API accepts in a query parameter or returns in a field. - [Discover feed](https://docs.splashsports.com/predictions/reference/discover/discover-feed.md): The home feed: one gameline section per league, in the order the discover cache loads leagues (`nfl, ncaaf, nba, mlb, nhl, ncaab, wnba, epl`). This endpoint is deliberately **not** volume-ranked; only `GET /sub_categories` orders leagues by trading volume, so the two can legitimately disagree on lea… - [List sub-categories](https://docs.splashsports.com/predictions/reference/sub-categories/list-sub-categories.md): The leagues currently enabled for prediction markets. Membership is the configured league list and is independent of current market inventory; `active` and `filters` are derived from live market data. This is the only endpoint that returns those two fields. - [List market groups](https://docs.splashsports.com/predictions/reference/markets/list-market-groups.md): A paginated list of market groups with optional filtering. - [List promoted market groups](https://docs.splashsports.com/predictions/reference/markets/list-promoted-market-groups.md): Market groups flagged for promotion, in flag order, followed by unflagged gameline groups soonest kickoff first, up to a server-side cap. The backfill only runs when the request includes `active` markets, so a settled- or expired-only request returns flagged groups alone and is usually empty. - [Get a market group](https://docs.splashsports.com/predictions/reference/markets/get-a-market-group.md): One market group by id. A `player_prop` group has the same shape here as in a listing: one market per prop type, each carrying its ladder in `alternate_lines`. - [Get a game's markets](https://docs.splashsports.com/predictions/reference/events/get-a-games-markets.md): One game's markets of one type, **not paginated**: the game page's data source. Each tab in the game's `filters` (from `GET /prediction_markets/{id}`) says what to send. - [Market](https://docs.splashsports.com/predictions/types/market.md) - [GamelineMarket](https://docs.splashsports.com/predictions/types/gameline-market.md) - [SpreadMarket](https://docs.splashsports.com/predictions/types/spread-market.md) - [TotalMarket](https://docs.splashsports.com/predictions/types/total-market.md) - [MoneylineMarket](https://docs.splashsports.com/predictions/types/moneyline-market.md) - [FutureTeamChampionMarket](https://docs.splashsports.com/predictions/types/future-team-champion-market.md) - [PlayerPropMarket](https://docs.splashsports.com/predictions/types/player-prop-market.md) - [PlayerPropLine](https://docs.splashsports.com/predictions/types/player-prop-line.md) - [GamelineLine](https://docs.splashsports.com/predictions/types/gameline-line.md) - [MarketGroup](https://docs.splashsports.com/predictions/types/market-group.md) - [GamelineMarketGroup](https://docs.splashsports.com/predictions/types/gameline-market-group.md) - [FutureTeamChampionMarketGroup](https://docs.splashsports.com/predictions/types/future-team-champion-market-group.md) - [PlayerPropMarketGroup](https://docs.splashsports.com/predictions/types/player-prop-market-group.md) - [MarketPrice](https://docs.splashsports.com/predictions/types/market-price.md) - [Orderbook](https://docs.splashsports.com/predictions/types/orderbook.md) - [Included](https://docs.splashsports.com/predictions/types/included.md) - [Game](https://docs.splashsports.com/predictions/types/game.md) - [GameState](https://docs.splashsports.com/predictions/types/game-state.md) - [TeamState](https://docs.splashsports.com/predictions/types/team-state.md) - [Team](https://docs.splashsports.com/predictions/types/team.md) - [Entity](https://docs.splashsports.com/predictions/types/entity.md) - [PlayerDetails](https://docs.splashsports.com/predictions/types/player-details.md) - [SubCategory](https://docs.splashsports.com/predictions/types/sub-category.md) - [GameTab](https://docs.splashsports.com/predictions/types/game-tab.md) - [PlayerPropSection](https://docs.splashsports.com/predictions/types/player-prop-section.md) - [GamelineSection](https://docs.splashsports.com/predictions/types/gameline-section.md) ## OpenAPI Specs - [openapi](/predictions/openapi.json) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.