Connect wallet to the Polygon network
This tutorial only teaches you how to switch to the Polygon network directly with the MetaMask plugin. To set up the MetaMask for the Polygon, users should add a custom RPC.
1）At first, click on the Network Selection button at the top of the MetaMask app.
2)click on Custom RPC. Users will find the Custom RPC option at the bottom. The next step will be to add the expected data as shown below:
Network name: Matic Mainnet
Chain ID: 137
Currency symbol: MATIC
Once users have added the URL in the New Network field, click on Save. They will later shift to Matic’s Mainnet now in the network dropdown list.