> ## Documentation Index
> Fetch the complete documentation index at: https://docs.optimism.io/llms.txt
> Use this file to discover all available pages before exploring further.

# OP Mainnet

> Routes builders deploying on OP Mainnet to the network information, contract addresses, finality reference, and chain history they need.

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.

<CardGroup cols={2}>
  <Card title="Deploy your first app on OP Mainnet" href="/app-developers/quickstarts/get-started">
    Go from zero to a working app on OP Mainnet with the app developer
    quickstart.
  </Card>

  <Card title="Connect to the network" href="/op-mainnet/network-information/connecting-to-op">
    Get RPC endpoints, chain IDs, currency symbols, and block explorers for
    OP Mainnet and OP Sepolia.
  </Card>

  <Card title="Look up contract addresses" href="/op-mainnet/network-information/op-addresses">
    Find the L1 and L2 contract addresses for OP Mainnet and OP Sepolia.
  </Card>

  <Card title="Check transaction finality" href="/op-mainnet/network-information/transaction-finality">
    See how quickly your transactions reach soft and hard finality on OP
    Mainnet.
  </Card>

  <Card title="Trace pre-Bedrock history" href="/op-mainnet/pre-bedrock-history/regenesis-history">
    Understand OP Mainnet's regenesis events and where pre-Bedrock data lives
    today.
  </Card>

  <Card title="Need your own chain after all?" href="/">
    Route by role from the documentation home: chain operators, node
    operators, and protocol learners each have their own section.
  </Card>
</CardGroup>