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You are building on OP Mainnet. If you are early in your journey, you do not need to run your own chain: deploy your app directly on OP Mainnet and use this section as your reference for the network itself.

Deploy your first app on OP Mainnet

Go from zero to a working app on OP Mainnet with the app developer quickstart.

Connect to the network

Get RPC endpoints, chain IDs, currency symbols, and block explorers for OP Mainnet and OP Sepolia.

Look up contract addresses

Find the L1 and L2 contract addresses for OP Mainnet and OP Sepolia.

Check transaction finality

See how quickly your transactions reach soft and hard finality on OP Mainnet.

Trace pre-Bedrock history

Understand OP Mainnet’s regenesis events and where pre-Bedrock data lives today.

Need your own chain after all?

Route by role from the documentation home: chain operators, node operators, and protocol learners each have their own section.