> ## 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.

# kona-node

> Canonical hub for kona-node, the Rust implementation of the OP Stack rollup node, with links to its guides, reference, releases, source, and spec.

kona-node is the Rust implementation of the OP Stack consensus-layer (rollup
node) client, built as part of the [Kona](/rust/kona/intro/overview) project.

## Overview

kona-node performs the same protocol role as [op-node](/op-stack/protocol/components):
it reads batch data and deposits from the data availability layer, derives the
canonical L2 chain, and drives an execution-layer client (such as
[op-reth](/node-operators/guides/configuration/execution-clients)) through the
Engine API. It also participates in the unsafe-block gossip network and can
run in sequencer mode.

It exists to bring client diversity to the OP Stack: with independent rollup
node implementations, a bug in one client cannot take down every node on a
chain. Kona is in active development and kona-node should be considered
experimental.

**Who runs it:** node operators, as the consensus-layer half of a node stack,
paired with an execution client. Chain operators can also run it in sequencer
mode.

## Get started

* [Install kona-node](/node-operators/kona-node/install/overview): pre-built
  binaries, Docker images, or building from source. Check the
  [system requirements](/node-operators/kona-node/requirements) first.

## How-tos

* [Run a node](/node-operators/kona-node/run/overview): using the
  [binary](/node-operators/kona-node/run/binary) or the
  [Docker recipe](/node-operators/kona-node/run/docker), including
  [how sync works](/node-operators/kona-node/run/mechanics) and
  [RPC trust considerations](/node-operators/kona-node/run/rpc-trust).
* [Run a sequencer node](/node-operators/kona-node/run/sequencer): flags,
  key management, and example configurations for sequencer mode.
* [Monitoring](/node-operators/kona-node/monitoring): logging, Prometheus
  metrics, and Grafana dashboards.

## Configuration & flags reference

* [kona-node CLI reference](/node-operators/kona-node/configuration): every
  CLI flag and environment variable for the `node` subcommand, plus default
  ports and default runtime behavior.
* [`kona-node` subcommands](/node-operators/kona-node/subcommands): the
  other subcommands the binary ships.
* [JSON-RPC reference](/node-operators/kona-node/rpc/overview): the P2P,
  rollup, and admin RPC namespaces.

## Releases

* [kona-node release history](/releases/kona-node)

## Source & spec links

* [Source: `rust/kona/bin/node`](https://github.com/ethereum-optimism/optimism/tree/develop/rust/kona/bin/node)
  in the Optimism monorepo.
* [Kona developer documentation](/rust/kona/intro/overview): the Kona
  project book, covering the node's
  [design internals](/rust/kona/node/design/intro) and the SDK its
  components are built from.
* [Rollup node specification](https://specs.optimism.io/protocol/rollup-node.html):
  the normative definition of the rollup node's role.