Kiln MCP Server

What the code does

We read the source, 22 h ago · rules 3dff92dd89df

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

            proc = subprocess.run(

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

            result = subprocess.run(cmd, shell=True, capture_output=True, text=True, timeout=20)

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

этот файл ставится пользователю, но в репозитории его нет

        output_path = os.path.join(backup_dir, f"kiln-{ts}.db")

        res = subprocess.run(cmd, capture_output=True, text=True, timeout=900)

  return spawnSync(probe, [bin], { stdio: "ignore" }).status === 0;

ENV KILN_PRINTER_API_KEY=""

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add kiln -- uvx kiln3d

{
  "mcpServers": {
    "kiln": {
      "args": [
        "kiln3d"
      ],
      "command": "uvx"
    }
  }
}

[mcp_servers.kiln]
command = "uvx"
args = ["kiln3d"]

{
  "mcpServers": {
    "kiln": {
      "args": [
        "kiln3d"
      ],
      "command": "uvx"
    }
  }
}

{
  "mcpServers": {
    "kiln": {
      "args": [
        "kiln3d"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: KILN_PRINTER_HOST (URL of your 3D printer (OctoPrint, Moonraker, Creality, or Prusa Link)), KILN_PRINTER_API_KEY (API key for your printer's REST API), KILN_PRINTER_TYPE (Printer type: octoprint, moonraker, creality, bambu, prusalink, elegoo, or serial). The author declared them in the registry entry; get the values from the project itself.