Configuring MetaMask
Milkomeda A1's validators will be shutting down at the end of May 2024. We urge anyone with funds on A1 to transfer them within the next six months to ensure their safety. Read more here
Now that we have an Algorand wallet and some ALGOs, we need an address on the Milkomeda Algorand A1 Rollup Mainnet where we can receive our mALGO. We recommend using MetaMask for this step.
First, install MetaMask for Chrome, then click the Chrome Extensions icon 
and select MetaMask. Within the MetaMask window, click "Get Started" and then "Create a Wallet". Set a wallet password and click through the rest of the setup screens. When you're finished, you will have a new, empty wallet, as shown below. Select the network dropdown in the top right corner of the MetaMask screen.
From the dropdown list, select “Add Network” and enter the following:
Mainnet
Network Name: Milkomeda Algorand (A1)
HTTPS RPC URL: https://rpc-mainnet-algorand-rollup.a1.milkomeda.com
WebSocket RPC URL: wss://rpc-mainnet-algorand-rollup.a1.milkomeda.com/ws
Chain ID: 2002
Currency Symbol: mALGO
Block Explorer URL: https://explorer-mainnet-algorand-rollup.a1.milkomeda.com
Click “Save”, and you will now see Milkomeda Algorand in the network dropdown list. Copy your Milkomeda Algorand Mainnet wallet address from MetaMask to the clipboard by clicking on the account name, as shown.
Next we will go to the Milkomeda A1 Bridge dApp and send our ALGO to the Bridge to be wrapped.