How to add a custom network RPC

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MetaMask can access many more networks than just Ethereum mainnet: you can add any EVM-compatible network. The initialism RPC stands for remote procedure call, a set of protocols that allow a client (such as MetaMask) to interact with a blockchain. Without introducing a significant technical tangent, adding network details using the process below allows MetaMask to use an RPC that enables  you to interact with that network.

Adding via Chainlist

For an easy way of adding networks to MetaMask, go to chainlist.wtf, where you can connect MetaMask and add networks with only a few clicks. See our guide for more information. 

Also, please note that adding a network on one device does not mean it will appear on another device when accessing the same account. If you add it on Extension, it will not automatically be added to your MetaMask Mobile app, and vice versa.

Custom networks will also need to re-added if you uninstall the browser extension or mobile app (after which you'd need to restore your wallet using your Secret Recovery Phrase).

 

Adding popular networks

On both Mobile and Extension, you can easily add several prominent networks with just a tap. These include:

You can find this menu using the following steps:

Extension Mobile

From the homepage of your wallet, click on the network selector at the top of the screen, and then on 'Add network':

add_network.png

From here, you should see a list of popular networks ready to add (unless you've added the network already). Tap 'Add' to start the process, and follow the prompts.

popular_networkis.png

 

Adding a network manually

The following are instructions for establishing these connections manually:

Extension Mobile
  1. Click on the network selector button. This will display a list of networks to which you're already connected:

    networks_button.png

  2. Click 'Add network':

    add_network.png

  3. A new browser tab will open, displaying various fields to fill out:

    Screenshot_2022-02-10_at_10.08.31.png

    Complete the fields and click save to add the network. 

    The details for the above fields can be found in our network profiles or, alternatively, docs (i.e. developer documentation) or how-to guides for each network. For example:

    After performing the above steps, you will be able to see the custom network the next time you access the network selector.

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