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How To

How to Add Networks to MetaMask Easily

Muffin Lomboda
Last updated: 26/07/2025 12:46 AM
Muffin Lomboda
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Disclosure: This website may contain affiliate links, which means I may earn a commission if you click on the link and make a purchase. I only recommend products or services that I personally use and believe will add value to my readers. Your support is appreciated!
How to Add Networks to MetaMask Easily
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In this article, I will explain How to Add Networks to MetaMask, which allows you to interface with other blockchains aside from Ethereum.

Be it BNB Chain, Polygon, or Avalanche, the addition of custom networks provides access to new dApps, reduced fees, and cross-chain functionality. To ensure the security and efficiency of your MetaMask wallet expansion, follow the instructions closely.

What is MetaMask ?

MetaMask is one of the most widely utilized cryptocurrency wallets and browser extensions which enables the safe storage, management, and interaction with digital assets and decentralized applications (dApps) on the blockchain.

What is MetaMask ?

It is one of the popular wallets for Ethereum, and now supports BNB Chain, Polygon, and Avalanche. MetaMask enables users to privately manage their keys and access Web3 services. It is popular for executing token transfers, managing NFTs, and connecting to decentralized financial (DeFi) platforms.

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How to Add Networks to MetaMask

How to Add Networks to MetaMask

Example: Adding Avalanche C-Chain Network to MetaMask

Open MetaMask

Click on the extension on your browser and enter your password to unlock.

Open MetaMask

Access Network Settings

Click the network dropdown on the top (normally it says “Ethereum Mainnet”) and choose “Add Network” or “Add Network Manually.”

Fill in Avalanche C-Chain Information:

Network Name: Avalanche C-Chain

New RPC URL: https://api.avax.network/ext/bc/C/rpc

Chain ID: 43114

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Currency Symbol: AVAX

Currency Symbol: AVAX

Block Explorer URL: https://snowtrace.io

Click Save

After adding the network, MetaMask will automatically switch to the Avalanche network.

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Why Add Custom Networks to MetaMask

Access to Multiple Blockchains: MetaMask comes pre-configured for Ethereum. However, custom networks such as BNB Chain, Polygon, or Avalanche can be added to enable interaction with dApps and tokens on those chains.

Lower Transaction Costs: Networks such as BNB Chain or Polygon offer gas fees significantly cheaper than Ethereum. This makes them a go to for users who frequently transact or make smaller trades.

Access to Particular dApps and Tokens: Certain Decentralized Applications (dApps) and tokens are restricted to particular blockchains. Custom networks are created to enable users to access such dApps directly from MetaMask.

Interchain Connectivity: With several networks added, users can participate in cross-chain DeFi as well as NFT bridging and multichain token swaps from a single wallet.

Customization for Development or Testing: Developers can integrate testnets or private networks into MetaMask for building and testing decentralized applications, allowing them to operate in a controlled environment.

Best Practices and Security Tips

Always Confirm From Official Sources

To protect yourself from phishing scams, it’s best to copy RPC URLs, chain IDs, and other settings directly from the blockchain’s official website or documentation.

Always Avoid Untrusted RPCs

RPCs are often shared by unverified users or rampant forums. Avoid them as they can be malicious and breach your transaction or privacy centers.

Integrate Hardware Wallets

Custom networks and dApps can be risky to your assets. Integrate your MetaMask to a hardware wallet to protect your assets, and leveraging shields like dApps will add an extra layer of security.

Always Update Your MetaMask

MetaMask, like all other applications, also requires periodic security patches. Make sure your MetaMask is up to date to not be vulnerable.

Revealing Your Seed Phrase is Not an Option

Anyone asking for your seed phrase or recovery phrase is a scammer. Always be alert.

Always Test Using Smaller Amounts

Test by sending smaller amounts to other wallets to confirm that the network is fully functional.

Always Check Your Sites Admin and Remove Unverified dApps

In MetaMask’s settings, remove dApps that you do not recognize or no longer use.

Risk & Consider

Malicious RPC Endpoints

Custom RPC URLs can enable a person to spy on, censor, or modify your transactions. It is advisable to stick to verified RPCs from trusted channels only.

Fake or Scam Networks

Scammers may advertise fake networks that trick users into sending tokens to hijacked addresses. Always verify Chain ID and explorer URLs.

Reduced Support and Compatibility

MetaMask may not work seamlessly with some custom networks or may not have a reliable infrastructure, which may lead to transaction or dApp failures.

Privacy Risks

RPCs not affiliated with your organization may track your IP and wallet transactions, which may endanger your privacy.

Limited Recovery Options

If a custom network is improperly set, then you may temporarily lose access to tokens until rectified—especially tokens that are solely on that chain.

Addition of Tokens is Manual

Tokens on custom networks are not auto-detected by MetaMask. You are required to input token contract addresses, which raises the risk of making mistakes.

MetaMask is Not Liable

MetaMask does not provide any forms of protection on custom networks. Custom configuration and safe usage lies only with the end-user, which cannot be contradicted.

Pros & Cons

ProsCons
Access to multiple blockchains (BNB, Polygon, etc.)Risk of using malicious or fake RPC endpoints
Lower transaction fees on alternative networksNo automatic token detection on custom networks
Enables use of dApps not available on EthereumManual setup errors can cause failed transactions
Cross-chain DeFi and NFT supportThird-party RPCs may compromise privacy
Allows developers to test on testnets/private netsSome networks may have poor infrastructure or uptime
Better flexibility and control over assetsMetaMask does not offer support for all custom networks
Easier integration with bridges and Web3 toolsUser is fully responsible for security and verification

Conclusion

Integrating personal networks in MetaMask greatly expands other chains apart from Ethereum, making it possible for users to discover different dApps, enjoy cheaper transaction fees, and participate in multi-chain DeFi ecosystems.

Users can securely expand their wallet functionalities by systematically adding exact details as well as observing best practices. Always confirm that network data is from official documents and remain aware of possible risks for a smooth and secure experience.

FAQ

Can I add any blockchain network to MetaMask?

Yes, MetaMask supports any EVM-compatible blockchain like BNB Chain, Polygon, Avalanche, and more by adding the correct RPC details.

Where do I find the network details to add?

Use official blockchain websites or trusted sources like Chainlist.org to get accurate RPC URLs, Chain IDs, and explorer links.

Is it safe to add custom networks to MetaMask?

Yes, but only if the network details are verified. Avoid using untrusted RPCs to prevent privacy or security risks.

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ByMuffin Lomboda
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Articles about cryptocurrency usage, account deletion and how-to guides are written by Muffin Lomboda. For nearly three years, Muffin has been actively involved in the crypto industry and this has given him enough skills to offer useful tips aimed at guiding people on their digital journeys.
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