How to Add Polygon (Matic) Network to MetaMask
Quick, practical instructions for adding the Polygon (Matic) network to your MetaMask extension or mobile app. I use this setup daily to interact with Polygon DeFi and can tell you when to be careful.
Why add Polygon to MetaMask?
Polygon is an EVM-compatible chain that runs many DeFi apps with far lower gas fees than Ethereum mainnet. If you use DEXs, bridges, or staking services on Polygon, adding the network to your MetaMask account makes those dApps connect directly (no extra wallets required). Short story: faster and cheaper testing and trading. Switch networks and you're done.
Why does this matter? Because interacting with Polygon from the wrong network leads to failed transactions and, sometimes, lost funds.
What you need before starting
- A MetaMask account (extension or mobile). See /install-extension and /install-mobile if you haven't set it up.
- Your seed phrase backed up in secure offline storage. This is non-custodial self-custody — the seed phrase controls everything.
- A small amount of MATIC for gas on Polygon (or a plan to bridge funds).
- Optional: a hardware wallet like a Ledger for signing (link: /connect-ledger).
And always test with a tiny amount first. But don't skip the backup step.
Polygon RPC settings (copy these)
You can add Polygon manually by entering these values into MetaMask's Add Network form. These are the common, public values used by most nodes:
If you'd rather use MetaMask's built-in chain list, there's usually an option to search and add Polygon automatically. Manual entry uses the same fields as the custom RPC guide.
Add Polygon on MetaMask (Desktop) — step by step
- Open the MetaMask extension and unlock your account.
- Click the network dropdown at the top (it usually says "Ethereum Mainnet").
- Choose "Add Network" or "Add a network manually".
- Paste the values from the table above into the form.
- Click Save. MetaMask will switch to Polygon.
- If you plan to interact with dApps, visit the dApp and connect the wallet (confirm the account and network).
I prefer the manual RPC method. It avoids odd third-party RPC endpoints. In my experience, entering the RPC URL yourself reduces surprises.
Add Polygon on MetaMask (Mobile) — step by step
- Open the MetaMask mobile app and unlock it.
- Tap the menu (top-left or top-right depending on version) and go to Settings → Networks.
- Tap Add Network.
- Enter the same RPC values shown above and Save.
- Switch to Polygon from the network selector.
Mobile UX is slightly different. The fields are identical, but the navigation is app-based rather than a browser popup. If you're connecting to mobile dApps, WalletConnect is often used as an alternative (see /walletconnect-and-mobile-browser).
Adding tokens and the MATIC contract address question
Common confusion: "Do I need a Polygon Matic contract address in MetaMask?"
Short answer: No for native MATIC. MATIC is the native chain token on Polygon and doesn't require a contract address to receive. For ERC-20 tokens on Polygon (WMATIC, USDC, etc.) you do need the token contract address — copy it from a verified source (for example, Polygonscan) and paste it in MetaMask's Import Token form. See /how-to-import-token and /token-management for step-by-step instructions.
Pro tip: if your balance is zero after switching to Polygon, check the token list and add the token contract address manually. It happens all the time.
Using MetaMask with Ledger and safety notes
You can use a hardware wallet to sign Polygon transactions through MetaMask. Connect the Ledger via USB (desktop) or through supported mobile workflows, then open the account in MetaMask (see /how-to-connect-ledger). If you use Ledger, MetaMask acts as the interface while signing stays on the device.
Security notes (short, actionable):
- Verify RPC URLs before adding them. A malicious RPC can misreport balances or show fake prompts.
- Don't enter your seed phrase into websites or apps. Ever.
- Revoke token approvals you no longer use (guide: /revoke-approvals). I revoked an unlimited DEX approval once — saved a lot of headaches.
And if you're unsure about a dApp, test with a tiny amount first.
Troubleshooting common problems
| Symptom |
Likely cause |
Fix |
| No balance after switching |
Token not added to MetaMask |
Add token contract address via Import Token; check /not-showing-balance |
| Transactions pending forever |
Wrong network selected or low gas |
Confirm you're on Polygon; increase gas if needed; see /stuck-pending-transactions |
| A dApp won't connect |
Provider mismatch (WalletConnect vs injected) |
Use the correct connect option on the dApp or open site in MetaMask's browser; see /connect-to-dapps |
If transactions fail repeatedly, export logs and compare the network and gas settings (see /transaction-troubleshooting).
Who this is for — and who should look elsewhere
Who this setup fits:
- Active DeFi users on Polygon who want a flexible, non-custodial software wallet for frequent swaps and staking.
- People who prefer a single account across EVM-compatible chains (same address works across EVM chains).
Who should look elsewhere:
- Users who keep large amounts on a hot wallet without a hardware signer — consider hardware wallets or multisig setups (see /hardware-wallets and /multisig-and-gnosis).
- People who want built-in fiat onramps or custody services — that needs a different product.
In my experience, combining MetaMask with a hardware wallet gives a reasonable balance between convenience and safety.
FAQ
Q: Is it safe to add Polygon to MetaMask?
A: Yes, adding a network is low-risk. The main risks are using malicious RPC endpoints or connecting to phishing dApps. Verify RPCs and only connect to vetted dApps.
Q: How do I find the Polygon/MATIC contract address to add a token?
A: Use Polygonscan or the dApp's verified documentation. Remember: native MATIC doesn't need a contract address; only tokens do (WMATIC, USDC, etc.).
Q: Why is my MetaMask address the same on Ethereum and Polygon?
A: Both are EVM-compatible networks that use the same keypair format. Your account address is derived from your private key, so it's identical across EVM chains if you use the same account.
Q: Can I use Ledger with Polygon in MetaMask?
A: Yes. Connect your Ledger and open the Polygon account via MetaMask's hardware wallet flow. See /connect-ledger and /how-to-connect-ledger for details.
Q: What if I lose my phone?
A: Restore with your seed phrase on another device (see /backup-and-recovery-options). If you used a hardware wallet for signing, that changes the recovery steps.
Conclusion and next steps
Adding Polygon to MetaMask is fast and gives you access to cheaper DeFi activity (swaps, staking, bridges). Start by adding the RPC values above, switch to Polygon, and send a tiny test transaction. Test first. Be careful with token approvals and RPC endpoints.
Useful follow-ups: Add Polygon network (alternate guide), bridging tips, and token management.
Ready to add Polygon? Follow the desktop or mobile steps above and confirm with a small transfer. What I've found: small tests catch most mistakes early.
