# Pool

**Type:** GraphQL objects

**Description:**
Represents an automated market maker (AMM) liquidity pool for a pair of tokens.

A `Pool` tracks on-chain reserves, liquidity (LP) supply, pricing-derived metrics (TVL, volume, fees),
and short-term performance indicators (24h / 7d deltas). Prices used to compute TVL/volume/fees
are sourced from DIA and refreshed periodically. Use this type to power pool lists, detail pages,
analytics dashboards, and historical charts.

Note: Numeric reserve and supply values are returned as strings to preserve precision.

## Fields
- id (ID): Globally unique identifier for this pool node.
- address (String): The on-chain address / module reference for this pool.
- token0 (Token, Not Null): The first token in the pair (base/slot-0).
  - id (ID)
  - name (String)
  - chainId (String)
  - address (String)
- token1 (Token, Not Null): The second token in the pair (quote/slot-1).
  - id (ID)
  - name (String)
  - chainId (String)
  - address (String)
- reserve0 (String): Current on-chain reserve of `token0` held by the pool (as a string for full precision).
- reserve1 (String): Current on-chain reserve of `token1` held by the pool (as a string for full precision).
- totalSupply (String): Total supply of the pool’s LP (liquidity provider) tokens (as a string for full precision).
- key (String): A stable key for the pool (e.g., a deterministic pair identifier).
- tvlUsd (Float): Total value locked (USD) in this pool, derived from reserves and external pricing.
- tvlChange24h (Float): 24-hour percentage change in TVL.
- volume24hUsd (Float): Notional 24-hour traded volume (USD).
- volumeChange24h (Float): 24-hour percentage change in volume.
- volume7dUsd (Float): Notional 7-day traded volume (USD).
- fees24hUsd (Float): Notional 24-hour fees accrued by the pool (USD).
- feesChange24h (Float): 24-hour percentage change in fees.
- transactionCount24h (Int): Count of pool transactions over the last 24 hours.
- transactionCountChange24h (Float): 24-hour percentage change in transaction count.
- apr24h (Float): 24-hour APR estimate derived from recent fees relative to TVL (as a percentage).
- createdAt (DateTime): Timestamp when this pool record was created.
- updatedAt (DateTime): Timestamp when this pool record was last updated.
- charts (PoolCharts, Not Null): Get chart/series data for this pool over a specified timeframe (e.g., TVL, volume).
  - volume (ChartDataPoint): Volume data points
  - tvl (ChartDataPoint): TVL data points
  - fees (ChartDataPoint): Fees data points
- transactions (PoolTransactionsConnection): Get transactions related to this pool, with optional type filtering and cursor-based pagination.
  - edges (PoolTransactionEdge): List of transaction edges
  - pageInfo (PageInfo): Pagination information
  - totalCount (Int): Total number of transactions