Install MetaMask & Create an Account. If you already have MetaMask installed you can skip this step.
Click and add a new network on MetaMask
Add the Klaytn Network by manually entering the following details. We recommend you copy-paste the details instead of typing.
Klaytn ( KLAY ) Network Details :
Network Name: Klaytn Mainnet
Chain ID: 8217
Currency Symbol: KLAY
Block Explorer URL: https://scope.klaytn.com
After copy-pasting the above details, you need to click Save.
It will automatically be added and changed on your MetaMask Network.