WebUI

The WebUI is nanobot's browser workbench. Use it after a basic CLI reply already works, when you want a persistent chat workspace, visible agent activity, workspace controls, Apps, Skills, settings, and Automations in one place.

The published nanobot-ai wheel already includes the WebUI bundle. You only need the webui/ source directory when you are changing the frontend itself.

Open the WebUI

First confirm your provider and model can answer:

nanobot agent -m "Hello!"

Then merge the WebSocket channel into your existing ~/.nanobot/config.json. Set tokenIssueSecret to the password you will enter in the WebUI login form:

{
  "channels": {
    "websocket": {
      "enabled": true,
      "tokenIssueSecret": "your-webui-password",
      "websocketRequiresToken": true
    }
  }
}

If you are new to JSON snippets, see start-without-technical-background.md#how-to-merge-json-snippets.

Start the gateway:

nanobot gateway

Leave the gateway running and open http://127.0.0.1:8765. The WebUI is served by the WebSocket channel on port 8765 by default. The gateway health endpoint, 18790 by default, is not the browser UI. Enter tokenIssueSecret when the WebUI asks for a password.

What It Is For

Chat Workspace

The sidebar is the session switcher. A session keeps its own history, title, workspace metadata, and linked automations. Use a new session when you want a separate context; use fork when you want to continue from an existing point without changing the original thread.

The message timeline shows both user-visible replies and agent activity. Long tool or reasoning sections can be expanded when you need the details.

Workspace and Access

Use the workspace picker before starting project-specific work. This gives the agent the right project context for file paths, shell commands, and session metadata.

The access control in the composer controls the local capability level for the chat. It does not bypass your gateway, provider, shell sandbox, or operating system configuration; it only selects among the capabilities that are already available to this WebUI session.

Composer

The composer supports plain messages, image attachments, voice input when transcription is configured, slash commands, and @ mentions for installed Apps or MCP presets. The model badge shows the current model or preset and links back to model settings when setup is incomplete.

For image generation, configure an image provider first and then use the WebUI image mode from the composer. See image-generation.md for provider setup and output behavior.

Apps

Open Apps from the sidebar or settings navigation to manage integrations that nanobot can call from a chat. CLI Apps install local adapters that nanobot runs on your machine; they do not modify the native apps themselves. MCP presets add predefined MCP server configurations.

Some MCP presets connect to hosted keyless endpoints. For example, the Firecrawl preset uses Firecrawl's hosted MCP endpoint for search, scrape, crawl, and extraction tools without requiring an API key. This does not replace nanobot's built-in web search provider; mention the Firecrawl MCP preset with @ when a turn needs Firecrawl's richer web data tools.

After an App or MCP preset is available, mention it from the composer with @ to attach that capability to the next message.

Skills

The Skills view shows the skill instructions available to the agent, including built-in skills and workspace-provided skills. Check this view when you want to know whether nanobot already has a focused workflow for a task before you ask it to perform that task.

Automations

Automations are scheduled agent turns. They should be created from the chat, channel, or session where they are supposed to run so nanobot keeps the correct target context.

Use the Automations view to:

• Filter by all, active, paused, needs-attention, or system jobs.
• Search by task name, message, linked chat, schedule, or status.
• Sort by next run, last run, updated time, or name.
• Run now, pause or resume, edit, or delete user-created automations.
• Inspect protected system automations without changing them.

Search accepts plain text and field filters such as name:backup, chat:WeChat, schedule:09:30, cron:"0 23 * * *", and status:paused.

An automation without a linked chat cannot be enabled or run from the WebUI, because nanobot would not know where to deliver the scheduled turn. Recreate it from the target chat or channel so the automation has complete context.

Settings

Settings is the control surface for the browser session and gateway-backed runtime configuration. Use it to review or adjust model presets, provider visibility, image generation, voice transcription, web tools, Apps, Automations, Skills, runtime identity, and advanced safety controls.

Some settings take effect immediately. Runtime settings that affect the gateway or agent process may require a restart; the WebUI shows that requirement next to the relevant control.

LAN Access

To open the WebUI from another device on the same network, bind the WebSocket channel to all interfaces and set a token or token issue secret:

{
  "channels": {
    "websocket": {
      "enabled": true,
      "host": "0.0.0.0",
      "port": 8765,
      "tokenIssueSecret": "your-secret-here"
    }
  }
}

The gateway refuses to start with host set to "0.0.0.0" unless token or tokenIssueSecret is configured. After the gateway starts, open http://<your-ip>:8765 from the other device and enter the secret in the login form.

Troubleshooting

If the page does not open, check these in order:

1. nanobot agent -m "Hello!" works in the same Python environment.
2. The WebSocket channel is enabled in ~/.nanobot/config.json.
3. nanobot gateway is still running.
4. You are opening port 8765, not the gateway health port.
5. LAN access uses host: "0.0.0.0" and a token or token issue secret.

For detailed diagnostics, see troubleshooting.md#webui-problems. For frontend development, see ../webui/README.md.