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Wallet Network Setup
How to Add Arbitrum to MetaMask
A practical guide to using Arbitrum in MetaMask and avoiding common L2 network mistakes.
Network map
What this means
Arbitrum is EVM-compatible and can be used in MetaMask, but users must keep ETH on Arbitrum for gas and verify chain-specific token contracts.
Core ideas
What to understand first
- Arbitrum commonly uses ETH for gas.
- Arbitrum assets are separate from Ethereum mainnet assets.
- Bridging may involve waiting periods.
- Arbitrum has its own explorer and app ecosystem.
User checklist
What to check before moving assets
- Select Arbitrum in MetaMask before interacting with Arbitrum apps.
- Keep ETH on Arbitrum for fees.
- Use a trusted Arbitrum explorer.
- Verify contract addresses on Arbitrum specifically.
Risk note
Common mistakes to avoid
- L2 confusion can make balances appear missing.
- Fake bridge links target users.
- Wrong-chain token imports can mislead wallet displays.