How to Add Sepolia to MetaMask

To interact with the Sepolia test network, you must enable or add Sepolia in your wallet. This allows you to send and receive Sepolia ETH and perform on-chain activities on the Ethereum testnet.

This guide explains how to add Sepolia using MetaMask.

What You Need Before Starting

Before adding Sepolia, make sure that:

• MetaMask is installed in your browser or mobile app

• You have access to your wallet

• You understand that Sepolia is a test network and uses test tokens only

Method 1: Enable Sepolia Test Network in MetaMask

MetaMask includes Sepolia by default, but test networks may be hidden.

To enable Sepolia:

1. Open MetaMask

2. Click the network selector at the top of the wallet

3. Go to Settings

4. Open Advanced

5. Enable Show test networks

6. Return to the network list

7. Select Sepolia test network

Once selected, your wallet will switch to the Sepolia network.

Method 2: Add Sepolia Manually

If Sepolia does not appear in the network list, you can add it manually.

Use the following network parameters:

• Network Name: Sepolia

• RPC URL: https://rpc.sepolia.org

• Chain ID: 11155111

• Currency Symbol: ETH

• Block Explorer URL: https://sepolia.etherscan.io

After saving the settings, Sepolia will be available in your network list.

How to Confirm Sepolia Is Added Correctly

After switching to Sepolia:

• The network name at the top of MetaMask will display Sepolia

• Your balance will show Sepolia ETH (if available)

• All transactions will be executed on the testnet

Important Notes

• Sepolia ETH is a test token and has no real-world value

• Transactions on Sepolia do not affect Ethereum mainnet funds

• Always verify the selected network before confirming a transaction

• Testnet transactions may behave differently from mainnet transactions