Tauri MCP + OpenCode

Quick workflow

1. •Ensure the Tauri app runs with the MCP plugin and socket server enabled.
2. •Start the MCP server (stdio transport for OpenCode).
3. •Register the MCP server with OpenCode (command + args + env).
4. •Use the tools to inspect and control the app.

1) Enable the Tauri plugin and socket server

Add the plugin to your Tauri app and start the socket server. The example below mirrors the upstream docs and is typically gated to dev builds:

#[cfg(debug_assertions)]
{
    tauri::Builder::default()
        .plugin(tauri_mcp::init_with_config(
            tauri_mcp::PluginConfig::new("YOUR_APP_NAME".to_string())
                .start_socket_server(true)
                // IPC (default) or TCP
                .socket_path("/tmp/tauri-mcp.sock")
                // .tcp("127.0.0.1", 9999)
        ))
        // ... rest of your builder config
}

Notes:

• •On Windows, the default IPC path resolves to a named pipe like \\.\pipe\tmp\tauri-mcp.sock.
• •If you use TCP, match the host/port in the MCP server env (see below).

2) Build or install the MCP server

Choose one path:

• •

  Build from source:

  • •pip install -r requirements.txt
  • •python build.py mcp
  • •MCP server entrypoint: mcp-server-ts/build/index.js
• •

  Use npm without building:

  • •npx -y @delorenj/tauri-mcp-server@latest

3) Register with OpenCode (stdio transport)

OpenCode uses stdio transport for MCP servers. Configure it with either opencode mcp add or your OpenCode config file. Provide env vars if you are not using default IPC.

Example (IPC, default path):

opencode mcp add tauri-mcp -- npx -y @delorenj/tauri-mcp-server@latest

Example (TCP):

opencode mcp add tauri-mcp \
  --env TAURI_MCP_CONNECTION_TYPE=tcp \
  --env TAURI_MCP_TCP_HOST=127.0.0.1 \
  --env TAURI_MCP_TCP_PORT=9999 \
  -- npx -y @delorenj/tauri-mcp-server@latest

Example (IPC with custom path):

opencode mcp add tauri-mcp \
  --env TAURI_MCP_CONNECTION_TYPE=ipc \
  --env TAURI_MCP_IPC_PATH=/tmp/tauri-mcp.sock \
  -- npx -y @delorenj/tauri-mcp-server@latest

4) Available tools

Use these tools in OpenCode once the MCP server is connected:

• •take_screenshot (window_label)
• •get_dom (window_label)
• •execute_js (code, window_label, timeout_ms)
• •manage_window (operation, window_label, x, y, width, height)
• •manage_local_storage (action, key, value, window_label)
• •simulate_text_input (text, delay_ms, initial_delay_ms)
• •simulate_mouse_movement (x, y, relative, click, button)
• •get_element_position (selector_type, selector_value, window_label, should_click)
• •send_text_to_element (selector_type, selector_value, text, window_label, delay_ms)

Notes and guardrails

• •Use get_dom and execute_js to inspect and query state before driving UI actions.
• •Prefer get_element_position + simulate_mouse_movement for precise clicks.
• •send_text_to_element may not update React state; fall back to execute_js or simulate_text_input if needed.
• •If screenshots fail, confirm the app name and window label match the Tauri window you want.