The Polygon chain ID is 137 (0x89 in hex). Polygon PoS is an EVM sidechain secured by its own validator set. Gas is paid in POL, the token that replaced MATIC in September 2024. Below are the exact settings MetaMask asks for, public RPC endpoints we tested on October 27, 2026, and a one-click button to add the network.
Polygon Network Details for MetaMask
| Field | Value |
|---|---|
| Network name | Polygon Mainnet |
| RPC URL | https://polygon-bor-rpc.publicnode.com |
| Chain ID | 137 |
| Currency symbol | POL |
| Block explorer | https://polygonscan.com |
Copy these values exactly. If the RPC URL returns a different chain ID than the one you enter, MetaMask stops with a chain ID mismatch warning: that usually means a typo or an RPC for another network.
Polygon RPC URLs (Tested October 27, 2026)
| RPC endpoint | Returned chain ID | Response time |
|---|---|---|
https://polygon-bor-rpc.publicnode.com | 137 | 241 ms |
https://polygon.drpc.org | 137 | 250 ms |
https://rpc-mainnet.matic.quiknode.pro | 137 | 269 ms |
https://polygon.gateway.tenderly.co | 137 | 308 ms |
We sent eth_chainId and eth_blockNumber to each endpoint from Europe on October 27, 2026; the table lists only endpoints that answered with chain ID 137. The latest block was 96,271,277. Public endpoints are free and rate limited: for an app or a bot, use a paid provider or your own node.
How to Add Polygon to MetaMask
- Click Add Polygon to MetaMask above, or open MetaMask and go to Networks → Add a custom network.
- Enter the network name Polygon Mainnet, RPC URL
https://polygon-bor-rpc.publicnode.comand chain ID 137. - Set the currency symbol to POL and the block explorer to https://polygonscan.com.
- Save and switch to the new network. Your 0x address is the same as on other EVM networks.
Tip: If an old MetaMask setup still shows MATIC as the currency symbol, edit the network and change it to POL; the chain ID 137 stays the same.
Polygon Amoy Testnet
| Field | Value |
|---|---|
| Network name | Polygon Amoy |
| RPC URL | https://polygon-amoy-bor-rpc.publicnode.com |
| Chain ID | 80002 (0x13882) |
| Currency symbol | POL |
| Block explorer | https://amoy.polygonscan.com |
Testnet tokens come from faucets and are worth nothing. Do not send real POL to a wallet connected to Polygon Amoy.
How to Get POL on Polygon
The widget at the top of this page is set to swap into POL on Polygon: pick the token you have on another network, enter your address and sign once. Routes, fees and timing are covered in our Polygon bridge guide.
Related
- What is a chain ID? - how chain IDs protect transactions
- How to add a network to MetaMask - the manual steps in detail
- Gas tokens by chain - what each network charges fees in
- All networks: chain ID list