# Base

> Wiki for Base — Coinbase's Ethereum L2 (OP Stack): chain architecture, RPC/network info, deploying contracts, Base Account, bridging, Basenames, B20 tokens, and node operation.
> Covers: Base L2: what-is-Base and Ethereum differences, networks/RPC/fees, chain architecture (sequencer/batcher/derivation), the Azul proof system, Flashblocks, bridging, deploying contracts, Base Account/sub-accounts, payments & spend permissions, Basenames, B20 tokens, predeploys/precompiles, running a node, and the JSON-RPC surface.
> Not covered: Live chain state, gas prices, token listings, and protocol changes after the date below — use an RPC endpoint or web search.
> Current as of: 2026-06-19

- [LLM Wiki](/raw/base/README.md)
- [Knowledge Base Index](/raw/base/wiki/index.md)
- [B20 Native Token Standard](/raw/base/wiki/concepts/b20-tokens.md)
- [Base Account & Sub Accounts](/raw/base/wiki/concepts/base-account.md)
- [Basenames](/raw/base/wiki/concepts/basenames.md)
- [Bridging: Standard Bridge, Deposits & Withdrawals](/raw/base/wiki/concepts/bridging.md)
- [Chain Architecture: Sequencing, Batching, Derivation](/raw/base/wiki/concepts/chain-architecture.md)
- [Deploying Smart Contracts on Base](/raw/base/wiki/concepts/deploying-contracts.md)
- [Flashblocks](/raw/base/wiki/concepts/flashblocks.md)
- [Networks, RPC & Fees](/raw/base/wiki/concepts/network-and-rpc.md)
- [Payments & Spend Permissions](/raw/base/wiki/concepts/payments-and-spend-permissions.md)
- [Proof System & Withdrawal Security](/raw/base/wiki/concepts/proof-system.md)
- [Running a Base Node](/raw/base/wiki/concepts/running-a-node.md)
- [What is Base](/raw/base/wiki/concepts/what-is-base.md)
- [Predeploys & Precompiles](/raw/base/wiki/entities/predeploys-and-precompiles.md)
- [Activity Log](/raw/base/wiki/log.md)
- [Docs Catalog & Hardforks](/raw/base/wiki/summaries/docs-catalog.md)
- [JSON-RPC & Node API Catalog](/raw/base/wiki/summaries/json-rpc-api-catalog.md)
- [App Safety & Troubleshooting Casebook](/raw/base/wiki/syntheses/app-safety-and-troubleshooting.md)