Adding custom networks to your MetaMask wallet unlocks access to a broader ecosystem of blockchains, enabling faster transactions, lower fees, and seamless interaction with decentralized applications (dApps) across multiple chains. Whether you're new to cryptocurrency or expanding your multi-chain strategy, this step-by-step guide walks you through how to safely and accurately add popular networks like Binance Smart Chain, Polygon, and more.
Why Add Custom Networks to MetaMask?
MetaMask is one of the most widely used crypto wallets in the digital asset space. Initially designed for the Ethereum blockchain, it natively supports ETH and ERC-20 tokens. However, as blockchain technology evolves, users now expect cross-chain flexibility.
By adding custom networks, you can:
- Interact with dApps on non-Ethereum chains
- Swap and transfer tokens like BNB, MATIC, and KCS directly from your wallet
- Reduce transaction costs by leveraging high-performance blockchains
- Diversify your crypto portfolio across multiple ecosystems
👉 Discover how multi-chain portfolios are shaping the future of decentralized finance.
Note: MetaMask does not support Bitcoin (BTC) network transactions. While you can trade BTC-USDT on exchanges like KuCoin, direct BTC transfers or swaps within MetaMask are not possible.
Core Features of MetaMask Wallet
MetaMask functions as a hot wallet, meaning it requires an internet connection for use. It’s available as a browser extension (Chrome, Firefox, Brave, Edge) and a mobile app.
Key features include:
- Secure storage of ETH and tokens from various blockchains
- Built-in token swap functionality
- Integration with thousands of dApps across DeFi, NFTs, and Web3 platforms
- User identity and private key management
- Support for custom RPC configurations to connect to EVM-compatible chains
To fully utilize these capabilities, adding external networks is essential.
Step-by-Step: How to Add a Network to MetaMask
Follow this universal process to integrate any EVM-compatible blockchain into your MetaMask wallet.
Step 1: Open MetaMask and Access Settings
After logging in, click on your profile icon in the top-right corner, then select Settings.
Step 2: Navigate to Networks
Under the Settings menu, go to Networks > Add Network. You’ll be prompted to enter specific network details manually.
Step 3: Enter Network Configuration Details
Fill in the required parameters for the blockchain you want to add. Accuracy is crucial—incorrect entries may lead to lost funds or failed transactions.
Let’s explore configurations for some of the most popular networks.
Supported Blockchain Networks & Configuration Settings
Binance Smart Chain (BSC)
A high-performance chain compatible with Ethereum Virtual Machine (EVM), BSC offers low-cost transactions and fast confirmations.
- Network Name: Binance Smart Chain
- Chain ID: 56
- New RPC URL:
https://bsc-dataseed.binance.org/ - Currency Symbol: BNB
- Block Explorer URL: https://bscscan.com
👉 Learn how low-fee networks are revolutionizing DeFi accessibility.
Polygon (MATIC)
Polygon is a Layer 2 scaling solution backed by major players like Coinbase and Binance. It addresses Ethereum’s scalability issues with near-instant transactions and minimal gas fees.
- Network Name: Polygon
- Chain ID: 137
- New RPC URL:
https://polygon-rpc.com/ - Currency Symbol: MATIC
- Block Explorer URL: https://polygonscan.com
Huobi Eco Chain (HECO)
Now rebranded as HT Mainnet, this high-efficiency public chain supports smart contracts and decentralized finance applications.
- Network Name: HT-Mainnet
- Chain ID: 128
- New RPC URL:
https://http-mainnet.hecochain.com - Currency Symbol: HT
- Block Explorer URL: https://scan.hecochain.com
Hoo Smart Chain (HSC)
A decentralized blockchain using PoSA consensus with a 3-second block time, Hoo Smart Chain enables fast cross-chain asset transfers.
- Network Name: HSC-MAIN
- Chain ID: 70
- New RPC URL:
https://http-mainnet.hoosmartchain.com - Currency Symbol: HOO
- Block Explorer URL: https://hscscan.com
TomoChain (TOMO)
Built on Geth, TomoChain delivers near-instant transaction finality and high throughput—ideal for dApps requiring real-time performance.
- Network Name: Tomo Chain
- Chain ID: 88
- New RPC URL:
https://rpc.tomochain.com - Currency Symbol: TOMO
- Block Explorer URL: https://scan.tomochain.com
Fusion Network
Founded by the CEO of BitSE (creators of QTUM and VeChain), Fusion focuses on cross-chain financial operations and secure value exchange.
- Network Name: Fusion Network
- Chain ID:
0x7f93(Hexadecimal format) - New RPC URL:
https://mainnet.anyswap.exchange - Currency Symbol: FSN
- Block Explorer URL: https://fsnex.com
KuCoin Network (KCC)
KuCoin Community Chain (KCC) is an EVM-compatible public chain designed to offer low fees and high efficiency within the KuCoin ecosystem.
- Network Name: KCC-Mainnet
- Chain ID: 321
- New RPC URL:
https://rpc-mainnet.kcc.network - Currency Symbol: KCS
- Block Explorer URL: https://explorer.kcc.io/en
Frequently Asked Questions (FAQ)
Q1: Is it safe to add custom networks to MetaMask?
Yes—adding networks using official RPC URLs is safe. Always verify sources before entering configuration details to avoid phishing or fake networks.
Q2: Can I remove a network after adding it?
Absolutely. Go to Settings > Networks, find the network, and click "Delete" to remove it from your wallet interface.
Q3: Why can’t I see my tokens after adding a network?
You may need to manually add the token contract address under the "Assets" tab. Ensure you’re on the correct network when checking balances.
Q4: Does adding a network expose my private keys?
No. Your private keys remain encrypted and stored locally. Adding a network only changes which blockchain your wallet connects to.
Q5: Are all blockchains compatible with MetaMask?
Only EVM-compatible chains can be added via custom RPC. Non-EVM networks like Solana or Bitcoin aren't supported in this way.
Q6: What should I do if a transaction fails on a new network?
Check gas settings, ensure sufficient native token balance for fees, and confirm the RPC URL is working. Switching to an alternative RPC endpoint may help.
Final Tips for Managing Multiple Networks
As you integrate more chains into your MetaMask wallet:
- Label networks clearly to avoid confusion
- Bookmark official RPC URLs for quick access
- Regularly update network settings if chain parameters change
- Use hardware wallet integration for enhanced security on large holdings
With proper setup, MetaMask becomes a powerful gateway to the multi-chain future of Web3.
Whether you're exploring DeFi on Polygon or trading on BSC-based platforms, knowing how to add networks empowers greater control over your digital assets.
👉 Start optimizing your multi-chain experience today with advanced tools and insights.
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