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

# What is OCA?

> Turn any Android phone into a 24/7 AI server — one command, zero hassle.

<img className="block dark:hidden" src="https://mintcdn.com/openclawonandroid/Mlvyo8WoezzirbXf/docs/images/banner.png?fit=max&auto=format&n=Mlvyo8WoezzirbXf&q=85&s=5c27974a6005b60b3bd4567269df5db8" alt="OCA Banner" width="640" height="360" data-path="docs/images/banner.png" />

<img className="hidden dark:block" src="https://mintcdn.com/openclawonandroid/Mlvyo8WoezzirbXf/docs/images/banner.png?fit=max&auto=format&n=Mlvyo8WoezzirbXf&q=85&s=5c27974a6005b60b3bd4567269df5db8" alt="OCA Banner" width="640" height="360" data-path="docs/images/banner.png" />

## Overview

**OCA (OpenClaw on Android)** is an open-source installer that deploys the full [OpenClaw](https://openclaw.ai) AI ecosystem directly onto your Android device via Termux — no proot, no VM, no sluggish Linux distro overhead.

It runs natively using a **glibc-based Node.js runtime** (the same approach as the official OpenClaw v2.x architecture), completely bypassing Android's restrictive Bionic libc.

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="/docs/quickstart">
    Go from zero to a running OpenClaw gateway in under 5 minutes.
  </Card>

  <Card title="Installation Guide" icon="wrench" href="/docs/installation">
    Full step-by-step walkthrough for the `oca` installer.
  </Card>

  <Card title="AI CLI Tools" icon="brain" href="/docs/ai-cli-tools">
    Claude Code, Gemini CLI, Qwen Code, Codex — all on your phone.
  </Card>

  <Card title="Local LLM" icon="microchip" href="/docs/local-llm">
    Run LLM models locally via node-llama-cpp and Ollama.
  </Card>

  <Card title="Troubleshooting" icon="bug" href="/docs/troubleshooting">
    Common errors and fixes for Termux + Android environments.
  </Card>

  <Card title="Configuration" icon="cog" href="/docs/configuration">
    Manage your OCA settings and preferences.
  </Card>
</CardGroup>

***

## Why OCA?

Your old Android phone is a powerful ARM64 server waiting to happen. OCA unlocks it:

| Feature                 | Description                                                           |                                 |
| ----------------------- | --------------------------------------------------------------------- | ------------------------------- |
| **No Proot overhead**   | Runs natively via Termux + glibc-runner, not inside a Linux container |                                 |
| **Full Node.js v24**    | Official `linux-arm64` binary with glibc ld.so wrapper                |                                 |
| **4 AI CLIs**           | Qwen Code, Claude Code, Gemini CLI, Codex — pick any at install time  |                                 |
| **SSH remote access**   | Built-in SSH server on port 8022                                      |                                 |
| **Auto-start**          | Termux:Boot integration for persistent 24/7 operation                 |                                 |
| **Root support**        | Optional `oca-root` wrapper for rooted devices                        |                                 |
| **One command install** | \`curl ...                                                            | bash\` and answer a few prompts |

***

## How it works

```
Android Device (Termux)
        │
        ▼
  glibc-runner (ld.so wrapper)
        │
        ▼
  Node.js v24 linux-arm64
        │
        ▼
  OpenClaw Gateway
  ┌─────┴──────┐
  │  AI CLIs   │  ◄── Claude, Qwen, Gemini, Codex
  │  SSH       │  ◄── Remote terminal access
  │  clawdhub  │  ◄── Skill/plugin manager
  └────────────┘
```

***

## Requirements

<Info>
  OCA is designed for **aarch64 (ARM64)** Android devices running Android 10 or newer.
</Info>

* **Device**: Any Android phone with aarch64 CPU (virtually all phones since 2016)
* **OS**: Android 10+ (Android 12+ requires [Phantom Process Killer fix](/docs/phantom-process-killer))
* **App**: [Termux](https://f-droid.org/packages/com.termux/) from **F-Droid** (NOT Google Play — the Play version is outdated)
* **Storage**: \~500MB free space
* **Network**: Active internet connection during install