The Unichain chain ID is 130 (0x82 in hex). Unichain is an OP Stack Layer 2 developed by Uniswap Labs. Gas is paid in ETH. 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.
Unichain Network Details for MetaMask
| Field | Value |
|---|---|
| Network name | Unichain |
| RPC URL | https://mainnet.unichain.org |
| Chain ID | 130 |
| Currency symbol | ETH |
| Block explorer | https://uniscan.xyz |
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.
Unichain RPC URLs (Tested October 27, 2026)
| RPC endpoint | Returned chain ID | Response time |
|---|---|---|
https://mainnet.unichain.org | 130 | 271 ms |
https://unichain-rpc.publicnode.com | 130 | 173 ms |
https://unichain-rpc.blockreq.com/v1/rpc/public | 130 | 191 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 130. The latest block was 62,363,927. Public endpoints are free and rate limited: for an app or a bot, use a paid provider or your own node.
How to Add Unichain to MetaMask
- Click Add Unichain to MetaMask above, or open MetaMask and go to Networks → Add a custom network.
- Enter the network name Unichain, RPC URL
https://mainnet.unichain.organd chain ID 130. - Set the currency symbol to ETH and the block explorer to https://uniscan.xyz.
- Save and switch to the new network. Your 0x address is the same as on other EVM networks.
Tip: The Uniswap Wallet supports Unichain; in MetaMask you can add it with the button above.
Unichain Sepolia Testnet
| Field | Value |
|---|---|
| Network name | Unichain Sepolia |
| RPC URL | https://unichain-sepolia-rpc.publicnode.com |
| Chain ID | 1301 (0x515) |
| Currency symbol | ETH |
| Block explorer | https://unichain-sepolia.blockscout.com |
Testnet tokens come from faucets and are worth nothing. Do not send real ETH to a wallet connected to Unichain Sepolia.
How to Get ETH on Unichain
The widget at the top of this page is set to swap into ETH on Unichain: pick the token you have on another network, enter your address and sign once. Routes, fees and timing are covered in our Unichain 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