Stream Deck MCP

AI-first MCP server for Elgato Stream Deck profile management. The default server writes directly to the Stream Deck desktop app's native profile files, and the original USB-direct server is still available as a legacy fallback.

Installation

Default: Desktop Profile Writer

The default packaged entrypoint is the profile writer. It edits ProfilesV3 when present, then falls back to ProfilesV2.

uvx streamdeck-mcp

Local Repo Configuration

{
  "mcpServers": {
    "streamdeck": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/streamdeck-mcp",
        "run",
        "profile_server.py"
      ]
    }
  }
}

Legacy USB Server

If you still want direct hardware control that bypasses the Elgato app entirely, keep using the legacy server:

{
  "mcpServers": {
    "streamdeck-usb": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/streamdeck-mcp",
        "run",
        "server.py"
      ]
    }
  }
}

Or use the packaged legacy entrypoint:

uvx --from streamdeck-mcp streamdeck-mcp-usb

Default Tools

Tool	What it does
streamdeck_read_profiles	Lists desktop profiles and page directories from the active ProfilesV3 or ProfilesV2 store
streamdeck_read_page	Reads a page manifest and returns simplified button details plus the raw manifest
streamdeck_write_page	Creates a new page or rewrites an existing page manifest
streamdeck_create_icon	Generates a 72x72 PNG icon with text and colors
streamdeck_create_action	Creates an executable shell script in ~/StreamDeckScripts/ and returns an Open action block
streamdeck_restart_app	Restarts the macOS Stream Deck desktop app after profile changes

How the Profile Writer Works

• ProfilesV3 is preferred when it exists because page UUIDs map cleanly to directories.
• ProfilesV2 is still supported, but existing pages should be targeted by directory_id or page_index because Elgato stores opaque page directory names there.
• streamdeck_write_page can accept raw native action objects, or use convenience fields like path, action_type, plugin_uuid, and action_uuid.
• Generated icons are stored in ~/.streamdeck-mcp/generated-icons/.
• Generated shell scripts are stored in ~/StreamDeckScripts/.

Usage Notes

• After writing profiles, the Elgato desktop app may need a restart to pick up the new manifests.
• streamdeck_create_action is the safest way to build shell-command buttons because it writes a standalone script and returns the native Open action block for it.
• The profile writer does not require exclusive USB access.

Legacy USB Tools

The original USB-direct server is preserved for backwards compatibility. It still provides:

• streamdeck_connect
• streamdeck_info
• streamdeck_set_button
• streamdeck_set_buttons
• streamdeck_clear_button
• streamdeck_get_button
• streamdeck_clear_all
• streamdeck_set_brightness
• streamdeck_create_page
• streamdeck_switch_page
• streamdeck_list_pages
• streamdeck_delete_page
• streamdeck_disconnect

Use that mode only when you want the MCP server to own the hardware directly and the Elgato desktop app is not running.

Development

uv venv
uv pip install -e ".[dev]"
uv run pytest tests/ -v
uv run ruff check .

To audit this repo against the shared Very Good Plugins MCP standards:

../mcp-ecosystem/scripts/audit-server.sh .

Support

For issues, questions, or suggestions:

• Open an issue on GitHub
• Contact Very Good Plugins

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