Add concentrated liquidity to Uniswap V3 pools by minting a position NFT. Specify custom price ranges via tick bounds for capital efficiency. Multiple fee tiers (0.01%, 0.05%, 0.3%, 1%). Returns position NFT token ID. Ideal for: concentrated liquidity strategies, range orders, active LP management, fee optimization.

Remove liquidity from Uniswap V3 position NFTs with optional fee collection. Supports partial removal (1-100%), fee claiming, WETH unwrapping, and NFT burning. Specify position by token ID. Ideal for: exiting V3 positions, collecting earned fees, rebalancing ranges, closing positions.