If you are using Metamask, you can add the zkSync Era mainnet manually by typing in the following network info:
Mainnet network info
Network Name: zkSync Era Mainnet
New RPC URL: https://zksync2-mainnet.zksync.io
Chain ID: 324
Currency Symbol: ETH
Block Explorer URL: https://explorer.zksync.io/
WebSocket URL: wss://zksync2-mainnet.zksync.io/ws
