← Back to Networks archive
Wallet Network Setup
How to Add Optimism to MetaMask
Learn how to use Optimism in MetaMask and what to check before sending, swapping, or bridging assets.
Network map
What this means
Optimism is an EVM-compatible Ethereum Layer 2 network where users commonly need ETH on Optimism for gas.
Core ideas
What to understand first
- Optimism is separate from Ethereum mainnet.
- ETH is commonly used for Optimism gas.
- Optimism has chain-specific token contracts.
- Bridges and exchanges may support different deposit paths.
User checklist
What to check before moving assets
- Select Optimism in your wallet.
- Keep ETH on Optimism for fees.
- Verify token contracts on Optimism.
- Use official bridge and explorer links.
Risk note
Common mistakes to avoid
- Layer 2 network confusion can cause missing balances.
- Fake claim pages target L2 users.
- Wrong-network deposits can require support.