How to Add Polygon to MetaMask

Quick answer: To add Polygon to MetaMask, access your wallet settings, enter Polygon’s network details, and save the configuration to start using the network.

Key takeaways

Adding Polygon to MetaMask enables access to its dApps and lower fees.
Always double-check network details to avoid sending funds to the wrong network.
Test transactions with a small amount before larger transfers.
Self-custody means you are responsible for your seed phrase and security.
Be aware of potential scams and only use official resources.

Before you start

Install the latest version of MetaMask.
Have your MetaMask wallet ready and unlocked.
Ensure you have a small amount of ETH or MATIC for transaction fees.
Backup your current seed phrase in a secure location.
Familiarize yourself with basic MetaMask navigation.

How to Add Polygon to MetaMask: step by step

1. Open MetaMask and access settings

Start by opening the MetaMask extension or app and unlocking your wallet. In the top-right corner, click on the account icon and select ‘Settings’ from the dropdown menu.

2. Navigate to networks

Within the Settings menu, scroll down and click on the ‘Networks’ tab. This section allows you to manage and add different blockchain networks.

3. Add a network manually

In the Networks menu, you will see a list of available networks. Click on the ‘Add Network’ button to manually input the Polygon network details.

4. Enter Polygon network details

You will need to input the following details for the Polygon network: Network Name: Polygon Mainnet, New RPC URL: https://polygon-rpc.com/, Chain ID: 137, Currency Symbol: MATIC, Block Explorer URL: https://polygonscan.com/. Ensure all details are entered correctly.

5. Save the network configuration

After entering the details, click the ‘Save’ button. MetaMask will verify the network information and add Polygon to your list of available networks.

6. Switch to the Polygon network

Once added, you can switch to the Polygon network by clicking on the network dropdown menu at the top of MetaMask and selecting ‘Polygon Mainnet’ from the list.

7. Fund your Polygon wallet

To use the Polygon network, you will need MATIC tokens for transaction fees. You can purchase MATIC on an exchange and withdraw it to your MetaMask wallet using the Polygon network.

8. Interact with Polygon dApps

With the Polygon network added and funded, you can now interact with Polygon-based dApps. Ensure you are on the correct network before conducting transactions.

9. Test with a small transaction

Before making larger transactions, test the setup by sending a small amount of MATIC to another wallet or smart contract. This helps ensure everything is working correctly.

Fees and how long it takes

Transaction fees on the Polygon network are generally lower than on Ethereum, but they can vary based on network congestion and the complexity of the transaction. Fees are typically a fraction of a cent.

The time it takes to add Polygon to MetaMask is minimal, but network configuration and transaction times depend on your internet speed and the current network load. Adding the network should take less than a minute.

Tips to avoid mistakes

Always verify network details from a trusted source like the official Polygon website.
Keep your MetaMask updated to the latest version to ensure compatibility and security.
Use a hardware wallet with MetaMask for enhanced security.
Bookmark the correct RPC URLs to avoid phishing sites.
Regularly review your network list and remove any unused networks.

Stay safe

Never share your seed phrase with anyone.
Ensure you are on the correct network before sending transactions.
Be cautious of phishing sites and only interact with trusted dApps.
Regularly backup your seed phrase and store it securely.
Avoid using public Wi-Fi when accessing your wallet.

If something goes wrong

Network not appearing in list — Ensure all network details are entered correctly and try restarting MetaMask.

Insufficient MATIC for fees — Purchase MATIC from a reputable exchange and transfer it to your MetaMask wallet.

Transaction not processing — Check your internet connection, ensure you have sufficient MATIC for fees, and verify the network configuration.

Unable to connect to dApp — Confirm you are on the Polygon network and try clearing your browser cache or using a different browser.

Doing this as part of trading, income, or a disposal? See how it may be taxed in Tax by country and the taxable-events section — information, not advice.

Frequently asked questions

Can I add Polygon to MetaMask on mobile?

Yes, the process is similar on the MetaMask mobile app. Access the settings, navigate to networks, and add the Polygon network manually.

What is the difference between Polygon and Ethereum on MetaMask?

Polygon operates as a layer 2 solution for Ethereum, offering faster transactions and lower fees. It has its own network configuration within MetaMask.

Can I use the same address on Polygon as on Ethereum?

Yes, the address is the same across different EVM-compatible networks. However, you need to switch to the Polygon network to interact with its dApps.

How do I remove the Polygon network from MetaMask?

Go to the Networks section in Settings, find Polygon in the list, and select 'Remove'.

What if I send tokens to the wrong network?

If you send tokens to the wrong network, you may need to use a bridge or contact support for assistance. Always double-check the network before confirming transactions.

Information, not advice. This page explains how the rules are generally understood and is not tax, legal, or financial advice. Rules change and depend on your circumstances — always check the cited source and consult a qualified professional in your jurisdiction before you act.