Open MCP Server

Model-agnostic computer-use MCP: screenshot, safety-gated actions, Windows UIA targeting.

Remote serverstreamable-httpPython

What is the Open MCP Server?

Model-agnostic computer-use MCP: screenshot, safety-gated actions, Windows UIA targeting.

The short version

The MCP client is the reasoner (no API key, model-agnostic): it calls capture to see the screen, then acts with do / click_name / invoke. This is the keyless Mode-A loop of open-compute, but as native tool-calls.

What it needs from you

  • Python 3.10+ and uv on the host. The default launch uses uvx to fetch open-compute (with the mcp extra) from GitHub on first run — the mcp extra tracks the GitHub repo, so this works regardless of PyPI release timing. - Windows for real capture/input (mss + UIA). Other platforms import the tools but cannot drive a desktop.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
captureScreenshot the screen → returned as an image (optionally a single window).
treeList UI elements via Windows UIA (name/role/center_norm).
click_nameResolve an element by name and click it.
invokeClick-free activation of an element via UIA patterns.
list_windowsList open windows with exact titles, rects and normalized centers (read-only).
get_screen_sizeVirtual-desktop geometry + per-monitor breakdown (read-only).
watch_dirWatch directories for file-system changes.
push_statusFeed-manager status (read-only).
rec_replayReplay a .clirec macro (needs the optional clirec package).
signal_showShow the screen-usage signal overlay: glowing border + cursor ring colored per mode (control=red, observe=blue, …); persists in the server process.
signal_hideHide the signal overlay.
signal_statusOverlay state + collect a pending abort-hotkey message (consumed on read).
signal_abortAsk the human for a short abort reason; the message is returned for the model.
chatHuman→model message about screen content, optionally with screenshot.

How to install the Open MCP Server

{
  "mcpServers": {
    "open-compute": {
      "command": "npx",
      "args": ["-y", "open-compute-mcp"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Python 3.10+ and uv on the host. The default launch uses uvx to fetch open-compute (with the mcp extra) from GitHub on first run — the mcp extra tracks the GitHub repo, so this works regardless of PyPI release timing. - Windows for real capture/input (mss + UIA). Other platforms import the tools but cannot drive a desktop.
VariableDescriptionRequired
OC_SAFETY_MODEConfiguration value read at startup.Optional

Example prompts to try

  • “Use Open to capture.”
  • “Use Open to tree.”
  • “Use Open to click name.”

Frequently asked questions

Model-agnostic computer-use MCP: screenshot, safety-gated actions, Windows UIA targeting. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.