How to Add Arbitrum to Metamask: A Beginner's Guide

Arbitrum is an Ethereum layer-two (L2) scaling solution that employs optimistic rollups to enhance transaction speed, scalability, and cost-efficiency. By leveraging Ethereum's security while reducing fees, Arbitrum has become a preferred network for decentralized applications (dApps) and traders. Its native token, ARB, powers governance within the ecosystem.

Step-by-Step Guide to Adding Arbitrum to Metamask

Prerequisites

• A configured Metamask wallet (👉 Learn how to set up Metamask).
• ETH for gas fees (if transferring assets to Arbitrum).

Steps

1. Open Metamask: Ensure your wallet is connected to the Ethereum Mainnet (default network).

2. Navigate to "Add Network":

   • Click the network dropdown (top-right corner).
   • Select "Add Network".

3. Enter Arbitrum Network Details:

   • Network Name: Arbitrum One
   • RPC URL: https://arb1.arbitrum.io/rpc
   • Chain ID: 42161
   • Currency Symbol: ETH
   • Block Explorer URL: https://arbiscan.io/
4. Save and Switch: Confirm details and switch to the Arbitrum network.

👉 Pro Tip: Arbitrum is also listed under "Popular Networks" for quick addition.

How to Add ARB Tokens to Metamask

1. Select "Import Tokens" in your Arbitrum-enabled Metamask.

2. Enter ARB Token Details:

   • Contract Address: 0x912CE59144191C1204E64559FE8253a0e49E6548
   • Symbol: ARB
   • Decimals: 18
3. Confirm Import to view ARB balances.

FAQs About Arbitrum

1. Is Arbitrum free to add?

Yes! Adding Arbitrum to Metamask incurs no cost, but trading requires holding $ARB or ETH for gas.

2. What blockchain is Arbitrum on?

Arbitrum operates as an Ethereum L2 solution, inheriting its security while optimizing performance.

3. Who developed Arbitrum?

Offchain Labs created Arbitrum to address Ethereum’s scalability challenges.

4. What are ARB token’s use cases?

• DAO governance voting.
• Cross-chain interoperability.
• Incentivizing ecosystem participation.

Why Use Arbitrum?

• Lower fees vs. Ethereum mainnet.
• Faster transactions with rollup technology.
• Growing dApp ecosystem (DeFi, NFTs, gaming).

Start exploring Arbitrum today! For other networks, check our guide on 👉 Avalanche integration.

### Keywords:  
Arbitrum, Metamask, ARB token, Ethereum L2, optimistic rollups, add Arbitrum to Metamask, Offchain Labs, crypto wallets  

---