Optimism Block Explorer
Search OP Mainnet addresses, transactions, blocks, and tokens.
Alltoscan is an Optimism explorer for addresses, transactions, blocks, and tokens on OP Mainnet, chain ID 10, where ETH is used for gas. Search a wallet to see its balance, tokens, and history.
Optimism is an Ethereum Layer 2, and Alltoscan’s nine-chain index makes it easy to track assets moving between OP Mainnet, Ethereum, Base, and others.
Chain ID: 10Native token: ETHSymbol: OP
What you can do with the Optimism explorer
- Look up any Optimism wallet address to see its ETH balance, token holdings, and transaction history.
- Inspect a transaction by hash to view its status, value, sender, recipient, and fees.
- Browse blocks on Optimism and the transactions they contain.
- Open a token page to review its details and holders.
- Track the same address across all nine chains Alltoscan supports, not just Optimism.
Optimism explorer FAQ
What chain ID does Optimism use?
OP Mainnet (Optimism) uses chain ID 10 and ETH as its native gas token.
Is Optimism an Ethereum Layer 2?
Yes. Optimism is an optimistic rollup that posts transaction data to Ethereum for security while reducing fees.
Can I view a wallet's tokens on Optimism?
Yes. Each Optimism address page shows ETH and token balances together with transactions.
Does it cost anything?
No. Optimism exploration on Alltoscan is completely free.