How to add Arbitrum to MetaMask

The Arbitrum network can be added to your MetaMask account because it is an Ethereum Virtual Machine (EVM) compatible network. The process of adding this blockchain to your wallet only takes a minute to complete.

Follow this simple guide to add Arbitrum to a MetaMask wallet:

  1. Open your MetaMask, click ‘Networks’ and tap ‘Add a Network’.
  2. Add the verified Arbitrum RPC details into the MetaMask form and tap ‘Add Network’.
  3. Interact with your favourite DApps to start using the Arbitrum blockchain.
How to add Arbitrum to MetaMask.

Arbitrum RPC Endpoints

The details below are the verified Arbitrum RPC endpoints. Add these to your MetaMask wallet as shown in the image above:

  • Network Name: Arbitrum One
  • New RPC URL:
  • Chain ID: 42161
  • Symbol: AETH
  • Block Explorer URL:

About Arbitrum

Arbitrum is an innovative Layer-2 solution designed to scale Ethereum by utilising Optimistic Rollup technology, making transactions faster and more cost-effective. Built by Offchain Labs, Arbitrum significantly boosts Ethereum's transaction throughput, enabling it to handle thousands of transactions per second while maintaining the strong security standards of Ethereum's base layer. 

Its architecture permits interoperability with the entire Ethereum ecosystem, allowing existing DApps to easily transition with minimal changes to their code. A distinguishing feature of Arbitrum is its unique approach to dispute resolution, utilising a protocol known as the "AnyTrust Guarantee". This ensures that as long as any single validator is honest, all participants can trust the network's correctness. 


To conclude, adding Arbitrum to a MetaMask wallet is a straightforward and quick process that only takes a minute. Simply add the verified Arbitrum networks RPC details into MetaMask to interact with the network.