Futures API

The futures namespace provides typed queries for historical futures prices, volume, open interest, funding, liquidations, and basis data.

APIs

API	Description
`.basis()`	Queries the annualized three-month futures basis.
`.price()`	Selects OHLC price columns.
`.volume()`	Selects coin or dollar volume columns.
`.trades()`	Selects buy, sell, or total trade counts.
`.openInterest()`	Selects coin or dollar open-interest columns.
`.fundingRate()`	Selects funding-rate and average-funding-rate columns.
`.premium()`	Selects the futures premium column.
`.liquidations()`	Selects long or short liquidation counts.
`.liquidationVolume()`	Selects coin or dollar liquidation-volume columns.
`.for()`	Selects the exchanges and the coins or products to query.
`.over()`	Selects the time window and resolution.

Required scope

Step	Property	Description
`.for()`	`exchanges`	Restricts the exchanges. Every exchange is selected when omitted.
`.for()`	`coins` / `products`	Targets Velo-aggregated coins, or exchange-native products.
`.over()`	`between` / `last`	An explicit `[begin, end)` range, or a trailing duration.
`.over()`	`resolution`	Sets the returned bucket size.

Every request needs a .for() step with exactly one target (coins or products) and an .over() step with one time range (between or last) and a resolution. Pass the result to velo.query(). The .basis() builder instead supports BTC and ETH with a time range and resolution.