How To Add Arbitrum To Metamask: Step By Step Guide To Follow

by Gixona

This article is a guide on how to add Arbitrum in your Metamask wallet. The Arbitrum is an Ethereum layer 2 scaling solution that allows quicker transactions at lower costs for its users.

Integrating Arbitrum into MetaMask widens your DeFi horizons by giving you access to various protocols and applications.

Some easy-to-follow instructions will enable you to add this tool to your current metamask account, thus opening up better Defi opportunities as well as embracing what decentralized finance has for us in store in the future.

What Is Arbitrum?

Arbitrum is a second-tier scaling solution that aims to increase Ethereum blockchain scalability and effectiveness. The main goal of Arbitrum, which was created by Offchain Labs, is to solve congestion problems on Ethereum by making transactions faster and cheaper.

This is achieved through off-chain computation and optimistic rollups that allow a much higher number of transactions per second while lowering gas fees.

Besides this, it also remains compatible with current smart contracts and infrastructure used in Ethereum; therefore, it can be considered as an excellent choice for scaling DApps based on Ethereum as well as wider usage of DeFi protocols.

Why Use The Arbitrum Network?

The Arbitrum network has several reasons why people should use it:

Scalability: By processing transactions of the Ethereum blockchain, which reduces congestion and increases throughput, Arbitrum greatly enhances scalability.

Cost-Effectiveness: Interacting with decentralized applications (DApps) and executing transactions becomes cheaper on the Ethereum mainnet with lower transaction fees offered by Arbitrum.

Fast Transaction Speeds: Faster transaction finality is enabled by optimistic rollups and off-chain computation in Arbitrum, thus improving user experience and facilitating real-time interactions within decentralized ecosystems.

Compatibility: Existing Ethereum smart contracts and developer tools are still compatible with Arbitrum; hence, projects can be migrated seamlessly as well as being adopted by the Ethereum community.

Enhanced DeFi Capabilities: New opportunities for decentralized finance (DeFi) protocols are unlocked by the improved scalability and cost-effectiveness of Arbitrum, thus fostering innovative financial products & services on the network.

What Is Required To Add Arbitrum To MetaMask?

To put Arbitrum onto MetaMask, you should have these things:

MetaMask Wallet: Ensure that either the MetaMask browser extension is installed or the MetaMask mobile app is downloaded on your device.

Access to MetaMask Network Settings: Open your wallet and go to network settings. This will allow you to add a custom network that can be integrated with Arbitrum.

Arbitrum Network Details: You need some particular information about Arbitrum, such as RPC URL, Chain ID, Token Symbol (optional), and Block Explorer URL (optional).

Internet Connection: Make sure that there is a good internet connection that will enable access to the required data for the seamless integration process’s completion.

How To Add Arbitrum To Metamask: A Step-by-Step Guide

Here’s how you can add Arbitrum to Metamask:

Start Metamask: Open the Metamask browser extension or mobile app and log in.

Network Settings: Click on the network dropdown menu (usually showing “Ethereum Mainnet”) to access network settings.

Custom RPC: Scroll down and select “Custom RPC” to manually add a new network.

Arbitrum Details: Enter these Arbitrum mainnet details:

  • Network Name: Arbitrum
  • New RPC URL:
  • Chain ID: 42161
  • Symbol (optional): ARB
  • Block Explorer (optional):

Save it: Click “Save” or “Add Network” after filling out the details so that your Metamask knows about Arbitrum.

Switch Networks: After adding, you can choose “Arbitrum” from the network dropdown menu to switch to the Arbitrum network.

You’re connected! Now your MetaMask wallet is linked with the Arbitrum chain, which allows interaction with DApps and transactions.

Exploring The Benefits of Arbitrum Integration

Once Arbitrum is integrated into Metamask, it brings several advantages for users. These are:

Increased Transaction Speeds: Users can enjoy faster transaction confirmations and better responsiveness when using DApps.

Reduced Transaction Fees: Costs incurred in executing transactions and taking part in DeFi activities are brought down.

DeFi Capabilities Widened: One can try different DeFi protocols like decentralized exchanges (DEXs), lending platforms, and yield farming opportunities.

Better User Experience: You can switch between Ethereum and Arbitrum networks seamlessly through the familiar Metamask interface, thus improving its usability and convenience.


Integrating Arbitrum into Metamask represents a significant step towards unlocking the full potential of decentralized finance. By following the step-by-step guide outlined in this article.

Users can seamlessly add Arbitrum to their Metamask wallets and gain access to a scalable, cost-effective, and feature-rich blockchain network.

Embrace the future of DeFi with Arbitrum and Metamask, and join the growing community of users driving innovation in the decentralized finance space.

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