Metamask: Unable to add the Anvil network (the corresponding node is running on Gitpod) to my MetaMask

Error Adding Anvil Network to MetaMask: A Troubleshooting Guide

As a user of Foundry, you’ve likely heard of the Anvil network as a secure and reliable platform for managing digital assets. Recently, you tried to add it to your MetaMask wallet using the Anvils RPC URL. However, you encountered an error message that prevented you from adding the network. In this article, we’ll delve into what might be causing this issue and provide guidance on how to resolve it.

The Error Message:

When attempting to add the Anvil network to your MetaMask wallet, the error message “Could not fetch chain ID” appears. This indicates that the system is unable to obtain a unique identifier for the Anvils RPC node running in Gitpod, which is a containerized environment provided by Foundry.

Possible Causes:

• RPC Node Unavailability

  : The Anvil network’s RPC (Remote Procedure Call) node might be unavailable or experiencing issues, preventing it from communicating with MetaMask.

• Gitpod Container Issues: Gitpod containers can sometimes experience connectivity problems or configuration errors, leading to the failure of an RPC node to function correctly.

• Network Connectivity: Ensure that your internet connection is stable and functioning properly, as a weak network connection might prevent the RPC node from communicating with MetaMask.

Troubleshooting Steps:

To resolve this issue, try the following steps:

Step 1: Verify the RPC Node

• Check if the Anvils RPC node running in Gitpod is available by visiting [ directly. If it’s working correctly, there shouldn’t be any error messages or issues.

• If you’re still experiencing problems with a specific RPC node (e.g., a different network connection or configuration issue), try accessing it through multiple URLs to isolate the problem.

Step 2: Check Network Connectivity

• Ensure that your internet connection is stable and functioning properly. Try connecting to a different network or using a VPN if necessary.

• Verify that all network devices are up and running correctly, including router settings, modem configuration, and any other related equipment.

Step 3: Restart MetaMask

• Close the MetaMask app and restart it to ensure that your wallet is restarted properly. This can sometimes resolve connectivity issues or memory leaks.

• If restarting MetaMask doesn’t solve the problem, proceed with further troubleshooting steps.

Step 4: Reset RPC Node Configuration (Optional)

If you’re still experiencing issues after verifying the RPC node and checking network connectivity, try resetting its configuration:

• Open the Foundry dashboard in your web browser.

• Navigate to the “Wallets” tab.

• Locate your MetaMask wallet and click on it.

• Select the “Advanced Settings” option from the dropdown menu.

• In the “Advanced Settings” window, scroll down to the “Network” section.

• Click on the “Reset RPC Node” button.

Step 5: Re-add the Anvils Network

Once you’ve followed these troubleshooting steps and have verified that your internet connection is stable, restart MetaMask, and attempt to add the Anvil network again using its RPC URL.

If none of the above steps resolve the issue, please provide more details about your setup (e.g., Foundry version, MetaMask version, and any relevant error messages), and we’ll be happy to assist you further.