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Decrypting mainnet and testnet using Metamask: step by step

As a Metamask user, you are probably used to managing your cryptocurrency wallet in both the mainnet and testnet environments. However, understanding the differences between them can be key to developing and testing projects that require seamless integration with both networks.

In this article, we’ll look at the process of using Metamask to determine whether your project is running on the mainnet or testnet.

Why check if the project belongs to Mainnet or Testnet?

Before we dive in, let’s take a quick look at why this is important:

  • Mainnet vs Testnet: Mainnet is the mainnet used for legitimate cryptocurrency transactions. This is a « real » thing, not a simulation. On the other hand, test networks are used for testing and development before deployment in production networks.

  • Security Risks: Mainnet environments are more secure than testnets due to higher transaction volume and limited access control.

  • Compatibility Issues: Using a mainnet compatible wallet in a testnet environment may cause compatibility issues or even errors.

Step by step guide: Check if your project is running on Mainnet or Testnet

To determine whether your project is running on the main or testnet using Metamask, follow these steps:

1. Open Metamask and go to Settings.

Open the Metamask wallet on your device, go to
Settings and go to
Network.

2. Check the status of the « Goerli » network

In the « Network settings » section, find the name of the network. If it is specified as
Goerli Testnet, it means that it is using a test net.

3. Check the network type (optional)

To confirm whether your project is running on the main network or the test network, check the network type under
Network >
Network Information >
Network Type.

  • If it is specified as
    Goerli Mainnet, it really works in the main network.

  • Otherwise, you can use the test network. However, keep in mind that even if the project is not technically running on a testnet, the network type may still show as « Testnet » due to the limitations of Metamask’s testing capabilities.

4. Consider the possibility of using a third-party tool

For more accurate and reliable results, consider using third-party tools such as:

  • Metmask’s built-in testnet tool

    Metamask: How to know that I am in mainnet or not?

    : This tool allows you to check the network status of your project without directly connecting to the testnet.

  • Etherscan Mainnet/Testnet Checker: This tool makes it easy to check if your project is running on the mainnet or testnet.

Although these tools can provide more detailed information, remember that even when using third-party tools, it is important to understand how to identify and move between the main and test network environments using Metamask.

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