How to Add Binance Smart Chain (BSC) Network to Metamask
3. On the top right of the screen, click the ‘Ethereum mainnet‘ option with the drop down arrow and select the ‘Custom RPC‘ option. If you’re using a mobile, click the menu icon that appears on the top left. Choose ‘Settings‘ and select the ‘Networks‘ option. Then click on ‘Add Network‘.
Go to metamask.io and add it to your chrome browser if you’re using a computer or download metamask app from google playstore or apple app store. Skip this step if you have metamask already installed.
Launch your metamask. It should look like the image below.
Select the 'Custom RPC' option.
Your metamask will display like this when you launch it.