# Interfaces

- [Factory](/dex/interfaces/factory.md): https://github.com/Into-the-Fathom/fathom-swap-smart-contracts/blob/master/contracts/core/UniswapV2Factory.sol
- [Pair](/dex/interfaces/pair.md): https://github.com/Into-the-Fathom/fathom-swap-smart-contracts/blob/master/contracts/core/UniswapV2Pair.sol
- [Router](/dex/interfaces/router.md): https://github.com/Into-the-Fathom/fathom-swap-smart-contracts/blob/master/contracts/periphery/UniswapV2Router02.sol