Why Use Polygon with MetaMask?
- Low gas fees compared to Ethereum Mainnet
- Fast confirmations for DeFi and NFT activities
- Compatible with MetaMask because it’s EVM-based
Before You Begin
- Install and set up MetaMask (browser or mobile)
- Keep a small amount of MATIC to pay gas on Polygon
- Use a personal device and avoid public computers
Always verify network details from official sources. Public RPC endpoints may change over time.
Step-by-Step: Add Polygon to MetaMask
1) Open MetaMask & Add Network
Open MetaMask → click the network selector at the top → choose Add network → Add a network manually.
2) Enter Polygon Mainnet Details
Fill the fields exactly as shown below:
- Network Name: Polygon Mainnet
- New RPC URL:
https://polygon-rpc.com/(or another official/public RPC) - Chain ID:
137 - Currency Symbol:
MATIC - Block Explorer URL:
https://polygonscan.com/
3) Save & Switch
Click Save. MetaMask will switch to Polygon Mainnet. If not, select it from the top network list.
4) Add Funds & Test
Send a small amount of MATIC to your 0x... address to test the setup. Your balance should appear under the MATIC asset.
Troubleshooting & Safety Tips
- If the RPC is slow, try a different official/public RPC.
- Double-check the Chain ID = 137; a wrong ID can cause errors.
- Never share your Secret Recovery Phrase or private keys.
- Bookmark official sites to avoid phishing.
FAQ — Frequently Asked Questions
Is Polygon safe to use with MetaMask?
Yes. Polygon is widely used and EVM-compatible. Always verify RPC details from official sources.
Do I need MATIC to make transactions?
Yes. Gas fees on Polygon are paid in MATIC.
Can I remove the Polygon network later?
Yes. In MetaMask, go to Settings → Networks and remove it if needed.
How do I bridge assets to Polygon?
Use a reputable bridge or exchange with Polygon withdrawals. Always test with a small amount first.