You will need to connect zkSync Era alpha mainnet to your MetaMask. To do this, go to your MetaMask and click on the network button, then “Add network”. Then, click “Add a network manually”. Add the following information and click “Save”: Network Name: zkSync Era Mainnet New RPC URL: https://mainnet.era.zksync.io Chain ID: 324 Currency Symbol: ETH Block Explorer URL: https://explorer.zksync.io/ WebSocket URL: wss://mainnet.era.zksync.io/ws