How to Add Optimism to MetaMask Wallet

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Author: Mr. KingsHOK
An accountant who turned cryptopreneur to pursue my interest in crypto and decentralized finance. Let me show you how to invest safely in the space with my experience over the years.

Optimism is a layer 2 scaling protocol for Ethereum network.

It’s designed to be fast, simple and secure, while helping people send transactions, similar to Ethereum with more advantages.

These advantages that we’re talking about are:

  1. Instant transaction finality
  2. Lower transaction fees.

However, you can add Optimism to MetaMask wallet by adding the RPC endpoints of the network to your account.

Of all the software wallets you can use for cryptocurrencies, MetaMask is a popular solution.

Practically, any DeFi application and almost all blockchains (except Bitcoin blockchain) integrates with it.

This guide will walk you through the easiest way you can add Optimism RPC details to your MetaMask wallet account.

Let’s get started.

How to add Optimism to MetaMask

In this tutorial, it’s totally assumed that you have already downloaded and installed the MetaMask on your device (either as; browser extension or mobile app).

Otherwise, you should go-to the official website and follow the procedures on how to install and use the software wallet.

Before we start the process of adding funds to MetaMask with the L2 network, let me first give you the RPC information.

Optimism blockchain RPC details

The information below are verified RPC endpoints for the Optimism network, so you’ll be sure to add them to your MetaMask wallet.

Optimism mainnet details:

Network Name: Optimistic Ethereum
Chain Id: 10
Currency Symbol: ETH
Block Explorer URL:

Adding Optimism network to MetaMask

To add the Optimism Layer 2 network to your crypto wallet, please follow these steps below…

  1. Open your Metamask wallet
  2. Select the ‘Add Networks’ button
  3. Copy Optimism RPC details from this page
  4. Paste in the space provided on the wallet
  5. Click/Tap on the ‘Save’ button to store the information.

Once the RPC details is successfully saved, you will be connected to the Optimism Network.

Final words

Adding Optimism to MetaMask wallet is a manual task, but you can still make use of the Chainlist platform.

That way, you can automate the entire process to make it very simple.

After connecting your MetaMask to Optimism EVM network, you can send or receive the tokens in your account.

However, if you wish to switch back to Ethereum Mainnet, you should simply click the network dropdown and select Ethereum.

I hope this guide helps you learn how to add optimistic Ethereum (ETH) to MetaMask easily.