> ## Documentation Index > Fetch the complete documentation index at: https://docs.blockworks.com/llms.txt > Use this file to discover all available pages before exploring further. # Perpetual Markets > Price, volume and open interest for a perpetual futures contract on a centralized exchange: open, high, low, close, volume and end-of-day and average open interest. Each series is one contract, keyed by exchange and contract symbol. Dated futures are not included. One row per perpetual futures contract on a centralized exchange, keyed by exchange and contract symbol: exchange, symbol, base asset, quote and settle currency, contract type and margin type. The id is the series key of the perpetual-markets timeseries model; filter by base asset to find every venue listing an asset's perpetual. | | | | ---------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Access | Market\_data\_unified | | Tabular model | `perpetual-markets`: primary key `id`, identifiers `slug`, aliases `futures-markets`, `futures-market-entities` | | Timeseries model | `perpetual-markets`: intervals `1d`, series key `id` (Perpetual Market ID), series must be named (up to 20 per call), aliases `futures-markets`, `futures-market` | ## Endpoints One page of rows with per-column filters, sorting and pagination. One row by `id` or by `slug`. Up to 20 series in one request, named by Perpetual Market ID in `series`. One series over a time window, keyed by its Perpetual Market ID. ## Metrics 8 metrics. Use the `Field` value in `selections`; every point starts with the timestamp and continues in this order. | Field | Name | Type | Unit | Description | | -------------------- | --------------------------- | ------- | ---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | | `openPrice` | Open Price | float64 | usd | USD price at the candle open. | | `highPrice` | High Price | float64 | usd | High USD price during the candle. | | `lowPrice` | Low Price | float64 | usd | Low USD price during the candle. | | `closePrice` | Close Price | float64 | usd | USD price at the candle close. | | `closePricePerUnit` | Close Price Per Unit | float64 | usd | USD price at the candle close per unit of the base asset, with the contract multiplier divided out. Use this to compare contracts whose multipliers differ. | | `volumeUSD` | Volume (USD) | float64 | usd | Volume traded during the candle in USD. | | `openInterestUSD` | Open Interest (USD) | float64 | usd | Open interest in USD at the candle close. Null where the exchange reports no open interest, which is distinct from a genuine zero. | | `openInterestUSDAvg` | Open Interest Average (USD) | float64 | usd | Mean open interest in USD across the observations taken during the candle. | ## Columns Use the `Field` value in `selections`, `sortBy`, and as the base of a filter parameter (`Field` plus one of its `Filters` suffixes). | Field | Type | Filters | Sort | Description | | --------------------- | ------ | --------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `id` | string | `Eq`, `IsOneOf` | | The series key of the perpetual-markets timeseries model, the exchange and contract symbol joined with an underscore (binance\_BTCUSDT). (primary key) | | `name` | string | `Eq`, `IsOneOf`, `Contains` | default | The display name of the market, the exchange name followed by the contract symbol. | | `slug` | string | `Eq`, `IsOneOf` | yes | The exchange's slug, shared by every market on that exchange (gate-io, crypto-com). (identifier 1) | | `exchange` | string | `Eq`, `IsOneOf` | yes | The exchange's short name as used in the id (binance, bybit, okx). | | `symbol` | string | `Eq`, `IsOneOf`, `Contains` | yes | The exchange-native contract symbol. | | `symbolNormalized` | string | `Eq`, `IsOneOf`, `Contains` | | The normalized contract symbol, where the exchange provides one. | | `baseAssetID` | string | `Eq`, `IsOneOf` | | The unique identifier of the asset the contract tracks. Null, along with the other base asset columns, where the contract's ticker matches no asset. | | `baseAssetName` | string | `Eq`, `IsOneOf`, `Contains` | yes | The name of the asset the contract tracks. | | `baseAssetSlug` | string | `Eq`, `IsOneOf` | yes | The URL slug of the asset the contract tracks. | | `baseAssetSymbol` | string | `Eq`, `IsOneOf`, `Contains` | yes | The ticker symbol of the asset the contract tracks. | | `baseAssetSerialID` | int64 | `Eq`, `IsOneOf` | | The numeric serial identifier of the base asset, used by market data services. Join on it to reach the spot markets for the same asset. | | `quoteAssetSerialID` | int64 | `Eq`, `IsOneOf` | | The numeric serial identifier of the quote currency, used by market data services. | | `settleAssetSerialID` | int64 | `Eq`, `IsOneOf` | | The numeric serial identifier of the settlement currency, used by market data services. It is what distinguishes an exchange's linear and inverse perpetuals on the same pair. | | `exchangeSerialID` | int64 | `Eq`, `IsOneOf` | | The numeric serial identifier of the exchange, used by market data services. | | `quoteCurrency` | string | `Eq`, `IsOneOf` | yes | The currency the contract is quoted in. | | `settleCurrency` | string | `Eq`, `IsOneOf` | | The currency the contract settles in. | | `contractType` | string | `Eq`, `IsOneOf` | | The contract type as reported by the exchange (perpetual or tradfi\_perpetual). | | `marginType` | string | `Eq`, `IsOneOf` | | The margin type of the contract, linear or inverse. | | `exchangeID` | string | `Eq`, `IsOneOf` | | The unique identifier of the exchange. | | `exchangeName` | string | `Eq`, `IsOneOf`, `Contains` | | The display name of the exchange. | ## Example ```bash curl theme={null} curl "https://api.blockworks.com/query/timeseries/perpetual-markets/1d/backpack_0G_USDC_PERP?timeframe=7d&selections=openPrice,highPrice" \ -H "X-Blockworks-API-Key: $BLOCKWORKS_API_KEY" ``` See [Get Perpetual Market timeseries](/api-reference/data-api/derivatives/timeseries-perpetual-markets-by-id) for the response and the errors.