Uniswap V3 Factory

Uniswap V3 uses CREATE2 to generate deterministic pool addresses based on token0, token1, and fee tier. You can calculate the pool address off-chain by hashing these parameters with the factory's salt, enabling you to know the address before calling the factory's create pool function.

Fee tiers are supported commission percentages (0.01%, 0.05%, 0.30%, 1%) configured in the factory. Each tier maps to a specific tick spacing value that determines the granularity of liquidity positions. The factory contract manages this mapping and enforces which fee tiers are active.

Call the factory's createPool function with token0, token1, and fee to deploy the pool deterministically. After deployment, initialize the pool by setting the initial price through a separate call to the pool's initialize function, which can be batched in the same transaction using a router or multicall.

No. The factory only allows creation of pools with fee tiers that are explicitly enabled in its configuration. Attempting to create a pool with an unsupported fee tier will revert. Check the factory's feeAmountTickSpacing mapping to confirm which fees are active before deployment.

Deterministic addressing enables off-chain address calculation, pre-computation of pool interactions, and reliable contract discovery without querying on-chain. This reduces deployment overhead, simplifies integration, and allows applications to predict pool locations before they exist.