How to Add Polygon to MetaMask

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Adding the Polygon network to your MetaMask wallet unlocks seamless interaction with one of the fastest-growing Ethereum scaling solutions. Whether you're looking to send, receive, or trade MATIC tokens—or engage with decentralized applications (dApps) on Polygon—you’ll need to configure your wallet properly. This guide walks you through each step clearly and securely, ensuring a smooth setup process.

By integrating Polygon (MATIC) into MetaMask, you gain access to lower transaction fees, faster confirmations, and a thriving ecosystem of DeFi, NFTs, and Web3 platforms—all while maintaining full control over your digital assets.

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Why Add Polygon to MetaMask?

Polygon is a layer-2 scaling solution for Ethereum, designed to enhance speed and reduce gas costs. As more dApps migrate or launch on Polygon due to its efficiency, users benefit from faster transactions at a fraction of the cost compared to Ethereum’s mainnet.

MetaMask supports multiple blockchain networks, allowing users to switch between them effortlessly. Adding Polygon expands your wallet's functionality beyond Ethereum, giving you direct access to:

Before diving into the steps, ensure you’re using the latest version of the MetaMask browser extension or mobile app.

Step 1: Log In to Your MetaMask Wallet

If you haven’t installed MetaMask yet, visit the official Chrome Web Store to download it securely. Once installed, create a new wallet by setting up a strong password and safely storing your 12-word recovery phrase—this is crucial for account recovery and should never be shared.

To log in:

  1. Open Google Chrome (or your preferred supported browser).
  2. Click the MetaMask extension icon in the top-right corner.
  3. Enter your password.
  4. Click “Unlock.”

You’ll now see your wallet dashboard, typically defaulted to the Ethereum Mainnet.

Step 2: Access Network Settings

With your wallet unlocked, you can begin adding new networks.

  1. In the top-center area of MetaMask, locate the current network display (e.g., "Ethereum Mainnet").
  2. Click the dropdown arrow next to it.
  3. From the expanded list, select “Add Network.”

This action redirects you to the network configuration page where custom chains can be added manually.

Step 3: Enter Polygon Network Details

To successfully connect to the Polygon Mainnet, input the following verified parameters:

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How to Fill Out the Form:

  1. Paste each value into its corresponding field.
  2. Double-check for accuracy—especially Chain ID and RPC URL.
  3. Click “Save” at the bottom.

MetaMask will validate the connection. If successful, you'll automatically switch to the Polygon Mainnet, and your wallet balance will reflect any MATIC tokens held.

Note: Always use official sources like Polygon’s documentation when retrieving network details to avoid scams.

Using the Mumbai Testnet (Optional)

Developers testing dApps before going live should consider adding the Mumbai Testnet, Polygon’s staging environment.

Use these settings:

Test MATIC tokens can be obtained from a faucet for development purposes.

Step 4: Send and Receive MATIC on Polygon

Once configured:

All transactions occur on the Polygon blockchain with near-instant finality and minimal fees—often less than $0.01.

Alternative Method: One-Click Setup via Polygonscan

For a faster setup:

  1. Visit polygonscan.com.
  2. Scroll to the footer and click “Add Polygon Network.”
  3. A MetaMask pop-up will appear—click “Approve,” then “Switch Network.”

This automated method uses trusted configurations and is ideal for beginners.

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Frequently Asked Questions (FAQ)

Q: Is it safe to add Polygon to MetaMask?
A: Yes, as long as you use official network details from trusted sources like Polygon’s documentation or Polygonscan. Never enter sensitive data on suspicious sites.

Q: Do I need a separate wallet for Polygon?
A: No. Your MetaMask address works across all EVM-compatible chains, including Polygon. You simply change networks within the same wallet.

Q: Why can’t I see my MATIC balance after adding the network?
A: Ensure you’re on the correct network (Polygon Mainnet), and that your tokens were sent to this chain. Tokens sent via Ethereum won’t appear unless bridged.

Q: Can I swap tokens directly in MetaMask after adding Polygon?
A: Yes! MetaMask includes a built-in swap feature that detects available liquidity across integrated DEXs on Polygon.

Q: What if I get an “Invalid Chain ID” error?
A: Recheck all fields for typos. Common issues include incorrect RPC URLs or mistyped Chain IDs (e.g., entering 138 instead of 137).

Q: Can I use hardware wallets with Polygon in MetaMask?
A: Yes. Ledger and Trezor devices work seamlessly when connected through MetaMask and set to Polygon Mainnet.

Final Thoughts

Adding Polygon to MetaMask is a simple yet powerful upgrade for any crypto user. With faster speeds, lower fees, and growing adoption across DeFi and NFT ecosystems, Polygon enhances your ability to participate in Web3 without compromising security or control.

Whether you're trading tokens, collecting digital art, or building decentralized apps, configuring your wallet correctly is the first step toward a frictionless blockchain experience.

Always verify network details before saving new chains, keep your recovery phrase secure, and stay informed about updates from official channels. With MetaMask and Polygon working together, you're well-equipped for the future of decentralized finance.