Orcaslicer Mcp

io.github.MaxEllis/orcaslicer-mcp · v0.1.25

Work a running OrcaSlicer with AI: slice, tune, and understand what each setting costs

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Terminal

claude mcp add orcaslicer-mcp -e ORCA_API_TOKEN=<ORCA_API_TOKEN> -e ORCA_API_URL=<ORCA_API_URL> -e ORCA_MCP_ALLOW_KEYS=<ORCA_MCP_ALLOW_KEYS> -e ORCA_PRINTER_URL=<ORCA_PRINTER_URL> -e ORCA_PRINTER_API_KEY=<ORCA_PRINTER_API_KEY> -e ORCA_PRINTER_ID=<ORCA_PRINTER_ID> -- uvx orcaslicer-mcp==0.1.25

claude_desktop_config.json

{
  "mcpServers": {
    "orcaslicer-mcp": {
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.25"
      ],
      "env": {
        "ORCA_API_TOKEN": "<ORCA_API_TOKEN>",
        "ORCA_API_URL": "<ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<ORCA_PRINTER_ID>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "orcaslicer-mcp": {
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.25"
      ],
      "env": {
        "ORCA_API_TOKEN": "<ORCA_API_TOKEN>",
        "ORCA_API_URL": "<ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<ORCA_PRINTER_ID>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "orcaslicer-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.25"
      ],
      "env": {
        "ORCA_API_TOKEN": "<ORCA_API_TOKEN>",
        "ORCA_API_URL": "<ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<ORCA_PRINTER_ID>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`ORCA_API_TOKEN` Required, secret	Remote API token from the OrcaSlicer MCP build (Preferences -> Remote API)
`ORCA_API_URL` Optional	OrcaSlicer Remote API address; defaults to http://127.0.0.1:13130
`ORCA_MCP_ALLOW_KEYS` Optional	Optional comma-separated config keys the MCP may change even though they run code or drive the printer directly (post_process, *_gcode, print host settings). Wildcards allowed. Blank by default.
`ORCA_PRINTER_URL` Optional	Optional printer address; by default the address in OrcaSlicer's active printer profile is used. A user name and password can be part of it (http://user:[email protected]); percent-encode special characters in them (@ as %40). A password in it is stored as an ordinary setting, so prefer ORCA_PRIN…
`ORCA_PRINTER_API_KEY` Optional, secret	Optional API key for printers that need one (OctoPrint, or Moonraker with authorization).
`ORCA_PRINTER_ID` Optional	Optional printer name for the outcome store; defaults to the host name of ORCA_PRINTER_URL when that is set, otherwise the printer profile's name, otherwise unknown.

Details

Package	`[email protected]` (PYPI, stdio)
First published	13 Nov 2026
Last updated	13 Nov 2026
Registry name	`io.github.MaxEllis/orcaslicer-mcp`

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Local install

Installed and run on your own machine, so there is no public endpoint to check.

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