> ## 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.

# Overview

> Base protocol specifications — tokens, bridging, transactions, consensus, execution, and proofs.

Technical specifications for how Base works at the chain level, organized by topic from user-facing primitives to protocol internals.

<CardGroup cols={2}>
  <Card title="Base Protocol" icon="diagram-project" href="/specifications/base-protocol/overview">
    Design goals, rollup architecture, and core user flows.
  </Card>

  <Card title="B20" icon="coin" href="/specifications/b20/specification-overview">
    Native token standard with compliance, memos, and supply controls.
  </Card>

  <Card title="Account Abstraction" icon="key" href="/specifications/native-account-abstraction">
    Smart accounts that send ordinary transactions with no bundlers or relays.
  </Card>

  <Card title="Transactions" icon="arrow-down-1-9" href="/specifications/transactions/transaction-ordering">
    Ordering, finality, fees, throughput, and troubleshooting.
  </Card>

  <Card title="Flashblocks" icon="bolt" href="/specifications/flashblocks">
    Sub-second block building, WebSocket data, and RPC usage.
  </Card>

  <Card title="Builder Codes" icon="badge-check" href="/specifications/builder-codes/overview">
    Verified identity standard for apps, wallets, and agents on Base.
  </Card>
</CardGroup>