Metamask

Here are the main steps from the official guide provided by Metamask:

From the homepage of your wallet, click on the network selector in the top left, and then on 'Add network'

MetaMask will open in a new tab in fullscreen mode. From here, find and the 'Add network manually' button at the bottom of the network list.

Add these informations to access to blockchain

Zama devnet

Fields	Value
Network Name	Zama Network
New RPC URL	https://devnet.zama.ai
Chain ID	8009
Currency symbol	ZAMA
Block explorer URL (Optional)	https://main.explorer.zama.ai

Local devnet

Fields	Value
Network Name	Zama Local
New RPC URL	http://localhost:8545/
Chain ID	9000
Currency symbol	ZAMA
Block explorer URL (Optional)

Choose the Zama Devnet