> For the complete documentation index, see [llms.txt](https://docs.fathom.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fathom.fi/dex/interfaces.md).

# Interfaces

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