Chain profile
Arbitrum One mainnet settings
Arbitrum One is an Ethereum L2. Arbitrum documentation lists the public RPC URL, chain ID 42161, and Arbiscan/Blockscout explorers.
Chain ID 42161
Gas token ETH
Verification Verified metadata
Checked April 30, 2026
Network endpoints
- Primary public RPC
https://arb1.arbitrum.io/rpc- Explorer
- https://arbiscan.io
- Source documentation
- Arbitrum docs
- Chain type
- Optimistic L2 mainnet
- Review cadence
- monthly; next review after May 30, 2026
Source links
Safety note
Compare bridge routes, withdrawal timing, and finality assumptions before moving large balances across rollups.
Main.net is an independent reference site. It does not operate this chain, custody assets, execute transactions, or provide investment advice.
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