Adding Polygon to MetaMask is a straightforward process that unlocks access to one of the fastest-growing Ethereum-compatible blockchains. As a popular crypto wallet and browser extension, MetaMask connects by default to the Ethereum mainnet. However, with just a few steps, you can expand its functionality to support Polygon (formerly known as Matic Network), enabling faster and cheaper transactions, NFT trading, and DeFi interactions.
This guide walks you through setting up Polygon on MetaMask, importing custom tokens, and safely navigating the process—whether you're a beginner or expanding your multi-chain portfolio. The skills you learn here are transferable to other EVM-compatible networks like Binance Smart Chain or Avalanche.
Why Connect Polygon to MetaMask?
Polygon is a layer-2 scaling solution designed to enhance Ethereum’s speed and reduce gas fees. It supports decentralized applications (DApps), non-fungible tokens (NFTs), and decentralized finance (DeFi) platforms while maintaining Ethereum-level security.
By adding Polygon to MetaMask, you gain:
- Lower transaction costs
- Faster block confirmations
- Access to Polygon-based DApps and marketplaces
- Seamless cross-chain asset transfers
With growing adoption across Web3 platforms, integrating Polygon into your wallet ecosystem boosts flexibility and efficiency.
👉 Learn how to start using blockchain networks with low fees and high speed.
Step-by-Step: Setting Up MetaMask
Before connecting to Polygon, ensure MetaMask is properly installed and configured.
- Download MetaMask
Visit the official MetaMask website to download the browser extension for Chrome, Firefox, or mobile apps for iOS and Android. Always verify the URL to avoid phishing sites. Create or Import a Wallet
On first launch, choose either:- Create a Wallet – For new users generating a fresh seed phrase.
- Import Wallet – If restoring from an existing 12- or 24-word recovery phrase.
- Set a Strong Password
This password protects access to your wallet within the browser but doesn’t replace your seed phrase. - Secure Your Seed Phrase
MetaMask will display your recovery phrase—write it down in order and store it offline. Never share it or save it digitally. - Confirm Your Seed Phrase
You’ll be prompted to re-enter the words in the correct sequence to verify backup.
Once completed, click All Done to open your wallet dashboard.
🔐 Security Tip: Your seed phrase is the master key to your funds. Losing it means losing access. Sharing it risks theft.
How to Add Polygon Network to MetaMask
MetaMask doesn’t include Polygon by default, but you can manually add it using network configuration details.
Required Network Information
To connect to the Polygon mainnet, you’ll need the following:
- Network Name: Polygon Mainnet
- New RPC URL:
https://polygon-rpc.com/ - Chain ID:
137 - Currency Symbol: MATIC
- Block Explorer URL:
https://polygonscan.com/
Setup Steps
- Open MetaMask and click the network dropdown at the top.
- Select Add Network.
- Click Add a Network Manually.
- Enter the details listed above.
- Click Save.
After saving, MetaMask will switch to the Polygon network automatically.
You now have full access to send, receive, and interact with assets on Polygon.
👉 Discover how easy it is to manage multiple blockchain networks in one wallet.
How to Add Polygon (MATIC) and Other Tokens
While MATIC appears automatically once Polygon is added, other tokens (like USDC, AAVE, or project-specific tokens) won’t show unless imported manually.
Find the Correct Token Contract
- Go to Polygonscan and search for the token name.
- Copy the Contract Address from the verified page.
- Double-check the address against official project sources (website or social media) to avoid scams.
Import into MetaMask
- In MetaMask, scroll down and click Import Tokens.
- Paste the contract address.
- The token symbol and decimals should auto-fill.
- Click Add Custom Token, then Import Tokens.
Your token balance will appear if you hold any.
⚠️ Warning: Fake tokens and scam contracts are common. Only import tokens from trusted sources.
Exploring the Polygon Ecosystem
With Polygon active in MetaMask, you’re ready to explore a wide range of Web3 experiences:
- DeFi Platforms: Use Aave, SushiSwap, or QuickSwap for lending, borrowing, and swapping.
- NFT Marketplaces: Browse and trade NFTs on OpenSea (Polygon collection), Mint Square, or NFTrade.
- Gaming & Metaverse: Engage with blockchain games like Aavegotchi or Decentraland that leverage Polygon for low-cost transactions.
- Cross-Chain Bridges: Transfer assets between Ethereum and Polygon via the official Polygon Bridge.
Transactions on Polygon cost a fraction of Ethereum gas fees—often less than $0.01—and settle in seconds.
Frequently Asked Questions (FAQ)
Can I use the same MetaMask wallet for both Ethereum and Polygon?
Yes. Your MetaMask wallet works across all EVM-compatible chains. Simply switch networks in the dropdown menu to move between Ethereum, Polygon, or others.
Is there a difference between MATIC on Ethereum and MATIC on Polygon?
Yes. MATIC on Ethereum is an ERC-20 token used during initial fundraising. The native MATIC on Polygon is used for gas fees and staking. When bridging funds, they are converted accordingly.
Do I need MATIC tokens to pay gas fees on Polygon?
Absolutely. Just like ETH on Ethereum, MATIC is required to pay transaction fees on the Polygon network.
Can I lose my funds adding a custom network?
No—adding a network doesn’t affect your private keys or funds. However, always verify network details before saving to avoid interacting with malicious chains.
How do I switch back to Ethereum after using Polygon?
Click the network selector in MetaMask and choose Ethereum Mainnet from the list.
Are all DApps compatible with Polygon?
Not all DApps support Polygon, but many major ones do—especially DeFi and NFT platforms looking to reduce user costs.
Final Thoughts
Adding Polygon to MetaMask opens doors to a scalable, efficient blockchain environment ideal for everyday crypto use. From low-cost transactions to vibrant DeFi and NFT ecosystems, Polygon enhances what’s possible within your existing wallet setup.
The process of adding custom networks is simple yet powerful—it empowers you to explore multiple blockchains beyond Ethereum, all from one interface. As Web3 evolves, multi-chain fluency becomes essential for maximizing utility and minimizing costs.
Whether you're trading tokens, collecting digital art, or experimenting with DApps, having Polygon integrated into MetaMask streamlines your journey into decentralized technology.
👉 Start exploring fast, affordable blockchain networks today.