Mantle Chain ID (5000) & RPC URL: Add Mantle to MetaMask

Q: "What is the Mantle chain ID?"

"The Mantle chain ID is 5000, or 0x1388 in hexadecimal. Wallets use it to make sure a transaction is signed for Mantle and not another network."

Q: "What is the Mantle RPC URL?"

"A working public RPC URL is https://rpc.mantle.xyz. We tested it on October 27, 2026: it returned chain ID 5000. Other working endpoints are listed in the table on this page."

Q: "How do I add Mantle to MetaMask?"

"Click \"Add Mantle to MetaMask\" on this page and approve the request in MetaMask. To add it manually, go to Networks, then Add a custom network, and enter the network name, RPC URL https://rpc.mantle.xyz, chain ID 5000, currency symbol MNT and the explorer URL."

Q: "What token do I need for gas on Mantle?"

"Gas on Mantle is paid in MNT. Keep a small amount in your wallet, otherwise you cannot send or swap the tokens you hold there."

Q: "What is the Mantle testnet chain ID?"

"The Mantle Sepolia testnet uses chain ID 5003 (0x138b) and the RPC URL https://rpc.sepolia.mantle.xyz. Testnet tokens have no value."

Network settings for Mantle: chain ID 5000, a working RPC URL and the explorer. Add it to MetaMask in one click, or copy the fields below.

Chain ID5000
Hex0x1388
Gas tokenMNT
RPC checkedOctober 27

By Step Exchange Research · Updated October 27, 2026

The Mantle chain ID is 5000 (0x1388 in hex). Mantle is an Ethereum Layer 2 network. Gas is paid in MNT, not 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.

Mantle Network Details for MetaMask

Field	Value
Network name	Mantle
RPC URL	`https://rpc.mantle.xyz`
Chain ID	5000
Currency symbol	MNT
Block explorer	https://mantlescan.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.

Mantle RPC URLs (Tested October 27, 2026)

RPC endpoint	Returned chain ID	Response time
`https://rpc.mantle.xyz`	5000	315 ms
`https://mantle-rpc.publicnode.com`	5000	595 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 5000. The latest block was 102,490,987. Public endpoints are free and rate limited: for an app or a bot, use a paid provider or your own node.

How to Add Mantle to MetaMask

Click Add Mantle to MetaMask above, or open MetaMask and go to Networks → Add a custom network.
Enter the network name Mantle, RPC URL https://rpc.mantle.xyz and chain ID 5000.
Set the currency symbol to MNT and the block explorer to https://mantlescan.xyz.
Save and switch to the new network. Your 0x address is the same as on other EVM networks.

Tip: Because gas on Mantle is MNT, bridge a little MNT along with your tokens or you will not be able to move them after they arrive.

Mantle Sepolia Testnet

Field	Value
Network name	Mantle Sepolia
RPC URL	`https://rpc.sepolia.mantle.xyz`
Chain ID	5003 (0x138b)
Currency symbol	MNT
Block explorer	https://sepolia.mantlescan.xyz

Testnet tokens come from faucets and are worth nothing. Do not send real MNT to a wallet connected to Mantle Sepolia.

How to Get MNT on Mantle

The widget at the top of this page is set to swap into MNT on Mantle: pick the token you have on another network, enter your address and sign once. Routes, fees and timing are covered in our Mantle bridge guide.

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

FAQ

What is the Mantle chain ID?

The Mantle chain ID is 5000, or 0x1388 in hexadecimal. Wallets use it to make sure a transaction is signed for Mantle and not another network.

What is the Mantle RPC URL?

A working public RPC URL is https://rpc.mantle.xyz. We tested it on October 27, 2026: it returned chain ID 5000. Other working endpoints are listed in the table on this page.

How do I add Mantle to MetaMask?

Click "Add Mantle to MetaMask" on this page and approve the request in MetaMask. To add it manually, go to Networks, then Add a custom network, and enter the network name, RPC URL https://rpc.mantle.xyz, chain ID 5000, currency symbol MNT and the explorer URL.

What token do I need for gas on Mantle?

Gas on Mantle is paid in MNT. Keep a small amount in your wallet, otherwise you cannot send or swap the tokens you hold there.

What is the Mantle testnet chain ID?

The Mantle Sepolia testnet uses chain ID 5003 (0x138b) and the RPC URL https://rpc.sepolia.mantle.xyz. Testnet tokens have no value.