Chain ID reference
OP Mainnet chain ID
OP Mainnet mainnet uses chain ID 10 and gas token ETH. Verify the ID and RPC endpoint against the cited source before adding a wallet network or signing transactions.
Verification record
This page is checked against cited public sources. It is not a live uptime, latency, or production reliability monitor.
- Last checked
- Verification status
- Verified metadata
- Verification run
manual-static-seed-2026-04-30- Verification tool
manual-source-review- Source set
- Optimism docs
- Next review
- monthly; after May 30, 2026
OP Mainnet network settings
OP Mainnet is an Ethereum L2 in the Optimism ecosystem. Optimism documentation lists chain ID 10, ETH as currency symbol, explorer, and public RPC.
- Chain type
- OP Stack L2 mainnet
- Primary public RPC
https://mainnet.optimism.io- Explorer
- https://explorer.optimism.io
- Verification
- Verified metadata, checked April 30, 2026
- Review cadence
- monthly; next review after May 30, 2026
Wallet and tooling caution
A matching chain ID helps software select the right network, but it does not prove an RPC endpoint is official, private, reliable, or safe. Main.net is an independent reference site and is not affiliated with the listed networks unless explicitly stated.
Optimism labels public RPC URLs as rate-limited. Use them for development or light checks, not production-grade app reliability.
Sources
These links are the cited source material for the chain ID, RPC URL, explorer, or setup context shown on this page.