How to Add Arbitrum to Your MetaMask Wallet

Introduction to Arbitrum

Arbitrum stands as the leading Layer 2 scalability solution for Ethereum, boasting substantial total value locked (TVL) and a dominant presence in the Ethereum Layer-2 market. Its core mission is to accelerate Ethereum transactions and drastically lower costs. Arbitrum achieves this by processing transactions off-chain and subsequently recording them on the Ethereum mainnet, enabling speeds of up to 40,000 transactions per second (TPS)—far surpassing Ethereum’s 20–40 TPS.

The Arbitrum protocol leverages optimistic rollups, a groundbreaking approach that facilitates faster and more cost-efficient transactions than those executed directly on the Ethereum mainnet. This architecture represents a major leap forward for blockchain scalability. The Arbitrum ecosystem continues to expand, featuring a growing array of decentralized applications (dApps) and robust on-chain activity.

Hundreds of dApps now run on the Arbitrum network, including DeFi platforms, NFT marketplaces, and gaming applications, highlighting the ecosystem’s diversity. With a large user base and significant on-chain engagement, Arbitrum is a preferred choice for developers and users seeking high-performance, cost-effective blockchain solutions.

MetaMask is among the most widely used web3 wallets for accessing Ethereum and EVM-compatible blockchains—including Arbitrum. With millions of users globally, MetaMask offers a seamless way to interact with the Arbitrum ecosystem and unlock access to next-generation blockchain technology.

How to Add Arbitrum Network to MetaMask

If you use MetaMask and want to connect to the Arbitrum network, follow these straightforward steps to add Arbitrum to your wallet.

Step 1: Install MetaMask

If you haven’t yet installed MetaMask, download it from the official website and set up your crypto wallet. MetaMask is available as a browser extension for desktop or as a mobile app for Android and iOS, providing flexible access for any device.

Step 2: Open MetaMask and Access Settings

Open MetaMask and locate the account icon in the upper right corner. Select this icon to open the options menu. From the dropdown, choose “Settings” to enter the configuration panel.

Step 3: Add a New Network

Inside Settings, find “Networks.” In this section, click the “Add Network” button to begin adding a new blockchain network to your wallet.

Step 4: Enter Arbitrum Network Details

Input the following details for the Arbitrum network:

• Network Name: Arbitrum One
• New RPC URL: https://arb1.arbitrum.io/rpc
• Chain ID: 42161
• Currency Symbol: ETH
• Block Explorer URL: https://arbiscan.io

Once you have entered all details accurately, click “Save” to confirm and register the network in your MetaMask wallet.

Step 5: Switch to the Arbitrum Network

Exit the Settings menu to return to MetaMask’s main interface. Locate the network dropdown at the top, click it, and select “Arbitrum One” from the available networks. Your wallet is now connected to Arbitrum.

Using Arbitrum in MetaMask

With Arbitrum added to MetaMask, you’re ready to fully utilize its features. Arbitrum integration unlocks a broad ecosystem of opportunities.

Sending and Receiving Tokens

To send tokens, click “Send” on MetaMask’s main interface. Enter the recipient’s wallet address and specify the amount. Make sure your ETH balance covers transaction fees—which are much lower on Arbitrum than on Ethereum mainnet. After reviewing, click “Next,” then “Confirm” to finalize the transaction.

To receive tokens, share your wallet address with the sender. Find your address by clicking your account name at the top of MetaMask. Copy and securely share this address to receive tokens.

Conclusion

Adding the Arbitrum network to MetaMask is a quick and simple process that greatly enhances your experience with DeFi and decentralized applications. Arbitrum delivers faster and more affordable transactions than Ethereum, making it a compelling solution for users and developers. By following these steps, you can easily integrate Arbitrum with MetaMask and start exploring its ecosystem—benefiting from a high-performance, reliable Layer 2 solution.

FAQ

Can I use Arbitrum with MetaMask?

Yes. You can use Arbitrum in MetaMask by adding it as a custom network. Open MetaMask, go to settings, select “Add Network,” enter the Arbitrum details, and save to begin using it.

Which network is Arbitrum?

Arbitrum is a Layer 2 scaling solution for Ethereum that processes transactions off the mainnet. This reduces congestion and fees using Optimistic Rollups.

What is Arbitrum’s chain ID?

Arbitrum’s chain ID is 42161. This unique identifier is necessary to connect Arbitrum to MetaMask and differentiate it from other networks.

How do I add Arbitrum to MetaMask?

Open MetaMask, click “Networks,” select “Add a Network.” Enter Arbitrum’s details (Chain ID: 42161, RPC: https://arb1.arbitrum.io/[rpc](https://web3.gate.com/crypto-wiki/article/how-to-configure-rpc-url-for-polygon-network)), and confirm. The network will be added to your wallet.

How do Arbitrum’s gas fees compare to Ethereum?

Arbitrum’s gas fees are much lower than Ethereum’s—typically under $5 per transaction, compared to Ethereum’s average of more than $20. This makes Arbitrum a far more cost-effective option.

How do I bridge tokens from Ethereum to Arbitrum using MetaMask?

Add Arbitrum to MetaMask, connect your wallet, visit the official bridge, and transfer your ETH and ERC-20 tokens with reduced fees.