Summary: Polygon, a leading Ethereum scaling solution, can be seamlessly integrated into MetaMask for fast, low-cost transactions. This guide covers two methods: using ChainList (Chain ID 137) or manual configuration.
Polygon enhances Ethereum’s capabilities with Proof-of-Stake (PoS) consensus and zkEVM compatibility, supporting DeFi, gaming, and enterprise applications.
👉 Learn how to optimize your MetaMask for Polygon
Why Add Polygon to MetaMask?
Adding Polygon to MetaMask unlocks:
- Low-cost transactions (fractions of Ethereum’s gas fees).
- EVM compatibility, allowing seamless interaction with Ethereum dApps.
- Access to Polygon’s ecosystem, including DeFi platforms like Aave and QuickSwap.
How to Add Polygon to MetaMask
Method 1: Using ChainList (Recommended)
ChainList, a trusted aggregator by Defillama, simplifies network integration:
- Visit ChainList: Navigate to ChainList.
- Connect MetaMask: Link your wallet securely.
- Search for Polygon: Enter “Polygon” in the search bar.
- Add Network: Select “Polygon Mainnet” and click Add to MetaMask.
- Confirm Setup: Approve the connection in MetaMask.
Note: ChainList supports 100+ Layer 1/Layer 2 networks but works exclusively with MetaMask.
Method 2: Manual Configuration
For advanced users, manually enter these Polygon RPC details:
| Parameter | Value |
|--------------------|----------------------------------------|
| Network Name | Polygon Mainnet |
| RPC URL | https://polygon.llamarpc.com |
| Chain ID | 137 |
| Currency Symbol| POL |
| Block Explorer | https://polygonscan.com |
👉 Verify the latest RPC settings here
Polygon Network Explained
Polygon combines:
- PoS Security: Heimdall validators ensure consensus.
- EVM Compatibility: Supports Ethereum smart contracts.
- zkEVM Integration: Enhances scalability with zero-knowledge proofs.
Transactions settle off-chain before finalizing on Ethereum, balancing speed and security.
FAQs
Can I use Polygon with MetaMask on mobile?
Yes! Follow the same steps in the MetaMask mobile app.
Is ChainList safe?
Absolutely. ChainList aggregates verified networks, minimizing manual errors.
Why does Polygon have low fees?
Its Layer 2 design processes transactions off-chain, reducing Ethereum congestion.
Final Thoughts
Adding Polygon to MetaMask is straightforward and unlocks a high-performance blockchain ecosystem. Whether using ChainList or manual setup, ensure RPC accuracy for optimal security.
As Polygon evolves with ZK technology, staying updated ensures you leverage its full potential for DeFi, gaming, and beyond.
Written by Emily Shin
Research Analyst | Web3 Enthusiast
Tags: #MetaMask #Polygon #EthereumScaling #DeFi #Blockchain