nanobot

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# nanobot

🐈 **nanobot** is an ultra-lightweight, open-source, self-hosted personal AI agent framework written in Python. It runs in a WebUI, terminal, or chat apps and combines tools, long-term memory, MCP integrations, model routing, multi-agent delegation, scheduled automation, and an OpenAI-compatible API in a small, readable core.

## Start Here

| You want to... | Go to |
|---|---|
| Install nanobot with no terminal/config background | [Start Without Technical Background](./docs/start-without-technical-background.md) |
| Install quickly and get one CLI reply | [Install](#-install) and [Quick Start](#-quick-start) |
| Open the bundled browser UI | [WebUI](#-webui) |
| Connect Telegram, Discord, WeChat, Slack, Email, Mattermost, or another chat app | [Chat Apps](./docs/chat-apps.md) |
| Configure providers, fallback models, Langfuse, MCP, web tools, or security | [Docs](./docs/README.md) and [Configuration](./docs/configuration.md) |
| Understand or extend the internals | [Architecture](./docs/architecture.md) and [Development](./docs/development.md) |
| Deploy to the cloud or keep nanobot running as a service | [Deployment](./docs/deployment.md) |

## What can nanobot do?

nanobot is a self-hosted personal AI agent runtime. It can:

- run in a browser WebUI or terminal
- connect to Telegram, Discord, Slack, WeChat, Email, Mattermost, and other chat apps
- use tools such as files, shell, web search, web fetch, MCP, cron, image generation, and subagents
- keep session history and long-term memory through Dream
- run long-horizon goals and scheduled automations
- expose a Python SDK and OpenAI-compatible API for integrations
- deploy as a long-running local or server-side agent gateway

## 💡 Why nanobot

- **Persistent workflows**: goals, memory, tools, and chat context survive long-running work.
- **Chat-native reach**: WebUI, API, Telegram, Feishu, Slack, Discord, Teams, email, and Mattermost.
- **Model freedom**: OpenAI-compatible APIs, local LLMs, image generation, search, and fallbacks.
- **Small core**: readable internals with MCP, memory, deployment, and automation built in.
- **Own your stack**: inspect, customize, self-host, and extend without a giant platform.

## 📦 Install

> [!IMPORTANT]
> If you want the newest features and experiments, install from source.
>
> If you want the most stable day-to-day experience, install from PyPI or with `uv`.

Pick **one** install method:

| Track | Install with | Update with | What runs |
|---|---|---|---|
| Stable | installer, `uv`, or pip | the same package tool | one released Python/WebUI/TUI version |
| Current source | editable Git checkout | `git pull --ff-only` + editable dependency sync | Python, WebUI, and TUI from that checkout |

Prerequisites: Python 3.11 or newer. Git and [Bun](https://bun.sh/) are only needed for a source install. Published packages include the WebUI and fetch a checksummed, version-matched TUI archive—with its licenses, notices, corresponding application source, source offer, and relinking instructions—on first use.

If terminals, API keys, or config files are new to you, use the guided zero-background walkthrough in [Start Without Technical Background](./docs/start-without-technical-background.md) instead of this compact README path.

**One-command setup**

macOS / Linux:

```bash
curl -fsSL https://raw.githubusercontent.com/HKUDS/nanobot/main/scripts/install.sh | sh
```

Windows PowerShell:

```powershell
irm https://raw.githubusercontent.com/HKUDS/nanobot/main/scripts/install.ps1 | iex
```

The default command installs or upgrades `nanobot-ai` from PyPI. On a fresh local desktop, it then starts `nanobot webui` so you can configure the first provider and model in **Settings → Models**. SSH, headless, existing-config, and older-release paths keep the terminal setup wizard. The installer avoids system-wide pip installs by using an active virtual environment, `uv`, `pipx`, or a managed venv under `~/.nanobot/venv`. It also prints the exact command it used to run nanobot; reuse that full command below if `nanobot` is not on `PATH`.

To preview the plan without changing your environment, pass `--dry-run`.

```bash
curl -fsSL https://raw.githubusercontent.com/HKUDS/nanobot/main/scripts/install.sh | sh -s -- --dry-run
```

```powershell
& ([scriptblock]::Create((irm https://raw.githubusercontent.com/HKUDS/nanobot/main/scripts/install.ps1))) --dry-run
```

If you prefer to inspect the script first, open [`scripts/install.sh`](./scripts/install.sh) or [`scripts/install.ps1`](./scripts/install.ps1).

**Install with `uv`**

```bash
uv tool install nanobot-ai
```

**Install from PyPI with pip**

```bash
python -m pip install nanobot-ai
```

If pip reports `externally-managed-environment` on macOS or Linux, use the one-command installer, `uv tool install nanobot-ai`, `pipx install nanobot-ai`, or install inside a virtual environment.

**Install from source**

Clone the repository and install it in editable mode. Bun is required because the source
checkout runs the matching TUI directly instead of downloading an older release binary.

```bash
git clone https://github.com/HKUDS/nanobot.git
cd nanobot
python -m venv .venv
```

Activate it with `source .venv/bin/activate` on macOS/Linux or
`.venv\Scripts\Activate.ps1` in Windows PowerShell, then run:

```bash
python -m pip install -e .
```

After that, the normal commands are identical to a stable install. `nanobot` runs the TUI
from this checkout, and `nanobot webui` rebuilds stale frontend assets automatically. A later
`git pull --ff-only` updates the Python, TUI, and WebUI source together; rerun
`python -m pip install -e .` when Python dependencies change. Contributors should also read
[`CONTRIBUTING.md`](./CONTRIBUTING.md).

Verify the install:

```bash
nanobot --version
```

If `nanobot` is not on `PATH`, invoke it through the method that installed it: reuse the recommended installer's command, use `uv tool run --from nanobot-ai nanobot ...` or `pipx run --spec nanobot-ai nanobot ...`, or use the Python executable from the environment where pip installed the package.

## 🚀 Quick Start

**Open nanobot in your browser**

```bash
nanobot webui
```

This is the recommended first run. The launcher creates the config and workspace when needed, safely enables the local WebSocket channel after confirmation, starts or joins the shared local gateway, and opens [`http://127.0.0.1:8765`](http://127.0.0.1:8765). A fresh install can open before a model is configured, so setup continues in the browser instead of beginning in a JSON file. The first-run WebUI binds to localhost by default and is not exposed to your LAN.

**Your first three steps**

1. Open **Settings → Models** and choose a provider, credential, and model.
2. Start a new topic and send `Hello!` to verify the connection.
3. Before project work, choose the intended workspace and access mode from the composer.

Any normal reply means the provider, model, workspace, and browser gateway are working together.

**Keep nanobot running after you close the terminal**

```bash
nanobot gateway --background
```

This is the only command that promotes the shared gateway to persistent background mode. It leaves channels and automations running after every local TUI and WebUI launcher exits. Complete first-time model setup with `nanobot webui` before switching to background mode; open the same localhost WebUI again afterward.

```bash
nanobot gateway status
nanobot gateway logs
nanobot gateway restart
nanobot gateway stop
```

**Prefer a gateway-first workflow?**

```bash
nanobot gatew