Step 1: Add Avalanche Network to your MetaMask wallet
The top line of your Metamask shows the network you are connected to.
Click on this line to display the current networks already setup for your wallet:
When the Network display appears, click the ‘Add Network’ option at the bottom:
A network setup screen appears for you to add the network information.
Copy and paste the following information into the boxes as shown below:
Network Name: Avalanche Network
New RPC URL: https://api.avax.network/ext/bc/C/rpc
Then click the ‘Save’ button to save the settings and your Avax network is ready to go.