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

# Chain Overview

> Start here for Base Chain docs, including concepts, network reference, node operation, APIs, and protocol specifications.

Base Chain docs are organized around the core concepts, references, and operating guides teams need to build on and integrate with Base.

## Start here

<CardGroup cols={2}>
  <Card title="Core Concepts" icon="route" href="/base-chain/network-information/transaction-ordering">
    Understand transaction ordering, finality, throughput, fees, bridging, and Base-specific execution behavior.
  </Card>

  <Card title="Network Reference" icon="list" href="/base-chain/quickstart/connecting-to-base">
    Look up chain IDs, RPC endpoints, connection guidance, providers, contract addresses, faucets, configuration changes, and transaction troubleshooting.
  </Card>

  <Card title="Node Operators" icon="server" href="/base-chain/node-operators/run-a-base-node">
    Operate Base infrastructure, including Flashblocks-aware RPC nodes.
  </Card>

  <Card title="API Reference" icon="code" href="/base-chain/api-reference/rpc-overview">
    Use Base JSON-RPC, Flashblocks API methods, subscriptions, and debug APIs.
  </Card>

  <Card title="Protocol Specifications" icon="book-open" href="/base-chain/specs/overview">
    Read the Base Chain protocol specification, upgrades, and protocol reference.
  </Card>
</CardGroup>