How to fill in network name when adding a network in MetaMask?

Accurately entering the network name in MetaMask is crucial for connecting to the correct blockchain. Using the official documentation to find the correct name (e.g., "Binance Smart Chain") prevents sending transactions to the wrong network and potential fund loss.

Mar 11, 2025 at 04:26 am

Key Points:

• Understanding the concept of network names in MetaMask and their importance.
• Identifying the correct network name for your chosen cryptocurrency.
• Step-by-step guide on adding a custom network to MetaMask.
• Troubleshooting common issues when adding networks.
• Explaining the difference between network names and RPC URLs.
• Addressing potential confusion regarding mainnet vs. testnet networks.

How to Fill in Network Name When Adding a Network in MetaMask?

MetaMask, a popular Ethereum-based cryptocurrency wallet, allows users to interact with various blockchain networks beyond the Ethereum mainnet. Adding a new network, like Binance Smart Chain (BSC) or Polygon, requires inputting specific details, including the network name. This name serves as a user-friendly identifier within MetaMask. Choosing the correct network name is crucial for ensuring transactions are sent to the intended blockchain. Incorrect information can lead to lost funds.

Understanding the Network Name's Role

The network name acts as a label within your MetaMask wallet. It’s the human-readable identifier for a specific blockchain. Think of it as the name you give a contact in your phone; it's what you see, not the underlying technical details. While the RPC URL handles the technical communication, the network name provides context and organization for the user. It allows you to quickly differentiate between networks like Ethereum Mainnet, Polygon, and Arbitrum.

Finding the Correct Network Name

The correct network name isn't always obvious. It’s usually found in the documentation of the specific blockchain you're trying to add. For example, if you're adding the Binance Smart Chain, you would search for the BSC network name on the Binance Smart Chain website or its official documentation. The name might be simply "Binance Smart Chain," or a slightly different variation. Always consult official sources to avoid errors. Using unofficial or outdated information could lead to connectivity problems or even security risks.

Adding a Custom Network in MetaMask: A Step-by-Step Guide

To add a custom network to your MetaMask wallet, follow these steps:

• Open MetaMask: Access your MetaMask extension in your web browser.
• Click on the Network Selector: Locate the network selector, usually displayed near your wallet address.
• Select "Add Network": Click on the option to add a custom network.

• Fill in the Network Details: This is where you need to accurately input the information. The fields typically include:

  • Network Name: This is the human-readable name (e.g., "Binance Smart Chain").
  • New RPC URL: This is the technical address for communication with the network (obtained from the blockchain's official documentation).
  • Chain ID: A unique numerical identifier for the network (also from the official documentation).
  • Currency Symbol: The symbol of the native cryptocurrency (e.g., BNB for Binance Smart Chain).
  • Block Explorer URL (Optional): A link to a block explorer for that network.
• Save the Network: Once all the details are correctly filled, click "Save". The new network should now be available in your network selector.

Troubleshooting Common Issues

• Incorrect Network Name: Double-check the network name against the official documentation of the blockchain.
• Incorrect RPC URL: Verify the RPC URL is correct and hasn't expired. Many networks offer multiple RPC URLs; try a different one if necessary.
• Wrong Chain ID: The Chain ID is critical. An incorrect Chain ID will prevent your wallet from connecting.
• Network Unresponsive: If the network remains unresponsive, check the status of the network itself. There may be temporary outages or issues on the blockchain's side.

Network Name vs. RPC URL: Clarification

Many users confuse the network name with the RPC URL. They serve distinct purposes. The network name is for user-friendliness and organization within MetaMask. The RPC URL is the technical communication link between your MetaMask wallet and the blockchain network. You need both for successful network addition. The RPC URL handles the technical backend communication, while the network name provides a user-friendly label.

Mainnet vs. Testnet: Understanding the Difference

Many blockchains have a mainnet (the live, production network) and a testnet (a testing network). The network name will differ accordingly. For instance, you'll have "Ethereum Mainnet" and "Ethereum Goerli Testnet" (or other testnet names). Always ensure you're adding the correct network based on your intended use. Using testnet tokens on the mainnet, or vice-versa, will result in errors or loss of funds. The network name clearly indicates whether you are interacting with the main network or a testing environment.

Common Questions and Answers:

Q: What happens if I use the wrong network name?

A: Using the wrong network name won't directly cause a catastrophic failure, but it can lead to confusion. Your transactions might appear to be successful, but they will be sent to the wrong blockchain, potentially resulting in irreversible loss of funds.

Q: Where can I find the correct network information?

A: Always refer to the official documentation or website of the specific blockchain you want to add to MetaMask. Unofficial sources may contain outdated or incorrect information.

Q: My network isn't showing up after adding it. What should I do?

A: First, double-check all the details you entered against the blockchain's official documentation. Ensure the RPC URL is functional, and the Chain ID is correct. If the problem persists, try refreshing your MetaMask browser extension or restarting your browser.

Q: Can I change the network name after adding it?

A: No, you cannot directly change the network name after adding it to MetaMask. If you need to change it, you must remove the existing network and add it again with the corrected name and other details.

Q: What if the RPC URL I'm using isn't working?

A: Many blockchains offer multiple RPC URLs. If one isn't working, try another from the official documentation. Network issues on the blockchain's side can also cause problems; check the blockchain's status page for any outages or maintenance.