# ethers-addressbook A collection of commonly used smart contract addresses. For more information, please refer to the [book](https://gakonst.com/ethers-rs). > **Warning** > > This library is in the process of being deprecated. See [#2667](https://github.com/gakonst/ethers-rs/issues/2667) for more information. ## Examples ```rust use ethers_addressbook::{contract, Chain}; let weth = contract("weth").unwrap(); let mainnet_address = weth.address(Chain::Mainnet).unwrap(); assert_eq!(mainnet_address, "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2".parse().unwrap()); ```