Open your Metamask wallet and select ‘Custom RPC’ under the list of networks Five pieces of information will be requested. Here are the details: Network Name: Avalanche Network New RPC URL: https://api.avax.network/ext/bc/C/rpc Chain ID: 0xa86a Symbol: AVAX Explorer: https://cchain.explorer.avax.network/ Go back to the homepage after clicking 'Save.'  Your Metamask wallet now includes the Avax network