How to Add Arbitrum Testnet to MetaMask

Can I Add Arbitrum Sepolia to MetaMask?

Yes, you can integrate the Arbitrum Sepolia testnet with your MetaMask wallet. Arbitrum Sepolia serves as a test network replicating the functionality of Arbitrum One's mainnet. Adding it to MetaMask follows the same process as other EVM-compatible networks. You will need to enter the verified RPC URL and the necessary network ID information to set it up.

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How to Add Arbitrum Sepolia Testnet to MetaMask

Connecting the Arbitrum Sepolia testnet into your MetaMask wallet is straightforward using the ChainList platform, known for its accurate network settings for Ethereum Virtual Machine (EVM) compatible networks. Here's how you can add Arbitrum Sepolia to MetaMask without manual data entry:

1. Visit ChainList: Open the ChainList website.
2. Connect MetaMask: Link your MetaMask wallet to ChainList for a secure connection.
3. Search for Arbitrum Sepolia: Use the search function on ChainList to locate 'Arbitrum Sepolia'.
4. Add to MetaMask: Click 'Add to MetaMask' to automatically populate the necessary RPC details for the Arbitrum Sepolia network in your MetaMask extension.

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Arbitrum Sepolia RPC Details

To integrate Arbitrum Sepolia into your digital wallet, use the following Remote Procedure Call (RPC) settings. Refer to the official Arbitrum documentation for the latest updates. Here are the essential RPC details for the Arbitrum Sepolia network:

• Network Name: Arbitrum Sepolia
• Network URL: https://arbitrum-sepolia.blockpi.network/v1/rpc/public
• Chain ID: 421614
• Currency Symbol: ETH
• Block Explorer URL: https://sepolia-explorer.arbitrum.io

These parameters are crucial for proper integration, enabling efficient management and interaction with the Arbitrum Sepolia network through your wallet.

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What is Arbitrum Testnet?

Arbitrum Sepolia is a testnet that replicates the capabilities of Arbitrum One's main network, allowing developers to securely test and evaluate smart contracts before mainnet deployment. Linked to the Sepolia testnet, it uses test Ether with no real-world value.

Previously, Arbitrum Goerli served a similar purpose but was deprecated and deactivated in March 2024. These testnets provide a robust environment for experimentation, ensuring smart contract functionality and performance without risking real assets.

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Bottom Line

In conclusion, integrating the Arbitrum Sepolia testnet with your MetaMask wallet is a straightforward process that facilitates secure and effective testing of smart contracts before mainnet deployment. By using the ChainList platform and following the provided RPC settings, developers can seamlessly connect to the Sepolia testnet, ensuring their applications function correctly without risking real assets.