Curve's liquidity pools are a type of decentralized liquidity pool that utilizes a unique architecture and design to provide liquidity and enable trading on the Ethereum blockchain. Here are some key features of Curve's liquidity pools ¹ ² ³ ⁴:

- *Base Pools and Meta Pools*: Curve introduces a system of base pools and meta pools. Base pools are primary liquidity pools, and meta pools are built on top of base pools, allowing for more complex trading strategies.

- *Stableswap Pools*: Curve's stableswap pools utilize a unique invariant to maintain a constant ratio of tokens in the pool, ensuring low slippage and low fees.

- *Plain Pools*: Curve's plain pools are simple liquidity pools that hold ordinary ERC-20 tokens pegged to the same price.

- *Lending Pools*: Some Curve pools are lending pools, which earn interest from lending in addition to trading fees.

- *Non-Custodial*: Curve is non-custodial, meaning that users have full control over their tokens at all times.

- *Permissionless*: Anyone can create a new Curve pool permissionlessly through the Curve Factory.

- *Composability*: Curve's design allows for composability, enabling users to use tokens across different protocols and platforms.

- *CRV Token*: The CRV token is a governance and utility token that incentivizes liquidity providers and allows for decentralized governance.