Add the Polygon network to the Metamask wallet
Connect Your MetaMask With Polygon Network
1) Go to the settings page
2) Click on Networks > Add Network
3) Key in the relevant details:
Matic Mainnet
Network Name: Matic Mainnet
New RPC URL: https://rpc-mainnet.maticvigil.com/
ChainID: 137
Symbol: MATIC
Block Explorer URL: https://explorer.matic.network/