Adding new blockchain networks to your MetaMask wallet unlocks access to a broader range of decentralized applications (dApps), tokens, and DeFi opportunities. Among the most popular networks are BNB Chain and Polygon (MATIC) — both known for low transaction fees and fast processing speeds compared to Ethereum.
In this comprehensive guide, we’ll walk you through how to easily add BNB Chain and Polygon Network to MetaMask in just a few clicks. Whether you're new to crypto or expanding your multi-chain portfolio, this step-by-step tutorial ensures a smooth setup process.
Why Add BNB Chain and Polygon to MetaMask?
Before diving into the steps, it’s important to understand why these two networks are worth adding:
- BNB Chain offers fast transactions with minimal gas fees, making it ideal for trading, staking, and participating in token launches.
- Polygon (MATIC) is a Layer 2 scaling solution for Ethereum, providing faster and cheaper transactions while maintaining high security.
- Both networks support thousands of dApps across DeFi, NFTs, gaming, and more.
By integrating them into MetaMask, you gain seamless access to these ecosystems without needing separate wallets.
👉 Start exploring multi-chain dApps today with a secure wallet setup.
How to Add BNB Chain to MetaMask
If you haven’t already set up MetaMask, start by downloading the extension or mobile app from the official MetaMask website. It’s available for Chrome, Firefox, Brave, Edge, iOS, and Android.
Important: Always use official sources. Never enter your seed phrase on any website.
Step 1: Open Your MetaMask Wallet
Launch MetaMask in your browser or mobile app. If you're setting it up for the first time:
- Follow the prompts to create a new wallet.
- Write down your recovery phrase on paper — never save it digitally.
- Confirm the phrase to complete setup.
Once logged in, you’ll see that the default network is Ethereum Mainnet in the top-left corner.
Step 2: Add BNB Chain Automatically (Recommended)
MetaMask now includes pre-approved networks. To add BNB Chain:
- Click the network dropdown (e.g., "Ethereum Mainnet").
- Select "Add network".
- Look for "BNB Smart Chain" or "BNB Chain" in the list.
- Click Add, then confirm.
That’s it — BNB Chain is now active!
Step 3: Manual Setup (Alternative Method)
If BNB Chain isn’t listed automatically, you can add it manually:
| Field | Value |
|---|
Note: Tables are not allowed per formatting rules.
Instead:
- Network Name: BNB Chain
- New RPC URL: https://bsc-dataseed.binance.org
- Chain ID: 56
- Currency Symbol: BNB
- Block Explorer URL: https://bscscan.com
To input these:
- In MetaMask, go to Settings > Networks > Add Network.
- Fill in the fields above.
- Click Save.
You should now see “BNB Chain” as your active network.
How to Add Polygon (MATIC) Network to MetaMask
Just like BNB Chain, Polygon can be added quickly — either automatically or manually.
Step 1: Use the Quick-Add Feature
- Click the network selector in MetaMask.
- Choose "Add network".
- Find "Polygon Mainnet" in the list.
- Click Add, then approve the connection request.
MetaMask will automatically configure all necessary settings.
👉 Discover cross-chain opportunities across leading blockchain networks.
Step 2: Manual Configuration (Optional)
If the automatic option doesn’t appear, enter the following details:
- Network Name: Polygon Mainnet
- New RPC URL: https://polygon-rpc.com
- Chain ID: 137
- Currency Symbol: MATIC
- Block Explorer URL: https://explorer.matic.network
Go to Settings > Networks > Add Network, fill in the form, and click Save.
After saving, switch to Polygon Mainnet from the network menu.
Switching Between Networks in MetaMask
Once both networks are added:
- Simply click the network name at the top of your MetaMask interface.
- Select Ethereum Mainnet, BNB Chain, or Polygon Mainnet based on where you want to interact.
- Transactions and balances will reflect accordingly per network.
⚠️ Always double-check which network you’re on before sending funds or interacting with dApps.
Common Issues & Troubleshooting
Here are some frequently asked questions to help resolve common concerns:
Q: Is it safe to add custom networks to MetaMask?
A: Yes — as long as you use verified RPC URLs from official sources like BscScan or Polygon’s documentation. Avoid entering sensitive data on third-party sites.
Q: Why can’t I see my MATIC or BNB balance after switching networks?
A: Tokens are network-specific. Make sure you’ve added the correct network and that your tokens weren’t sent to the wrong chain (e.g., sending BNB to an Ethereum address).
Q: Can I use the same wallet address across BNB Chain and Polygon?
A: Yes! Your MetaMask public address works across all EVM-compatible chains, including Ethereum, BNB Chain, and Polygon.
Q: Do I need native tokens on each network?
A: Yes. You’ll need BNB for gas fees on BNB Chain and MATIC for gas on Polygon. You can bridge assets from Ethereum or buy directly via exchanges.
Q: What if a network shows “Not Connected”?
A: This usually means the RPC URL is down. Try switching to an alternative RPC endpoint or check status pages like Downdetector for outages.
Q: Can I remove a network if I no longer need it?
A: Absolutely. Go to Settings > Networks, find the custom network, and click “Delete.”
Final Tips for Managing Multi-Chain Wallets
- Label your accounts if managing multiple wallets (e.g., “DeFi Wallet,” “NFT Wallet”).
- Use hardware wallets like Ledger or Trezor for extra security when handling large amounts.
- Regularly update MetaMask to benefit from performance improvements and security patches.
👉 Secure your digital assets while navigating multiple blockchains with confidence.
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By following this guide, you’ve successfully configured MetaMask for two of the most powerful EVM-compatible blockchains in the crypto ecosystem. With BNB Chain and Polygon now integrated, you’re ready to explore decentralized finance, NFT marketplaces, play-to-earn games, and much more — all from one secure wallet interface.