OrcaSlicer MCP

An MCP server that allows AI agents to interact with a running OrcaSlicer instance. It enables loading 3D models, arranging them on the print plate, tuning slicing settings, executing slices, and analyzing results such as print time and filament usage. It provides read-only access to printer status and detailed settings references, ensuring changes are visible in the GUI before printing.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by MaxEllis

Vendor documentation

What you can do with it

Tune slicing settings and analyze their impact on print time and material usage
Load 3D models and arrange them on the print plate via AI assistance
Execute slices and retrieve detailed breakdowns of time, filament, and flow per feature
Check profile physics to ensure settings do not exceed printer capabilities

Source and maintenance

Community listingRegistry 0.1.17

mcp-registry: io.github.MaxEllis/orcaslicer-mcp@0.1.17 Source repository Project website

Maintenance checked: Nov 1, 2026, 5:34 AM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

orcaslicer-mcp 0.1.17

pypiuvx

orcaslicer-mcp package definition

{
  "version": "0.1.17",
  "transport": "stdio",
  "identifier": "orcaslicer-mcp",
  "runtimeHint": "uvx",
  "registryType": "pypi",
  "registryBaseUrl": "https://pypi.org",
  "environmentVariables": [
    {
      "name": "ORCA_API_TOKEN",
      "isRequired": true,
      "description": "Remote API token from the OrcaSlicer MCP build (Preferences -> Remote API)"
    },
    {
      "name": "ORCA_API_URL",
      "default": "http://127.0.0.1:13130",
      "description": "OrcaSlicer Remote API address; defaults to http://127.0.0.1:13130"
    },
    {
      "name": "ORCA_MCP_ALLOW_KEYS",
      "description": "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."
    },
    {
      "name": "ORCA_PRINTER_URL",
      "description": "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:password@192.0.2.10); percent-encode special characters in them (@ as %40). A password in it is stored as an ordinary setting, so prefer ORCA_PRINTER_API_KEY where the printer accepts a key."
    },
    {
      "name": "ORCA_PRINTER_API_KEY",
      "description": "Optional API key for printers that need one (OctoPrint, or Moonraker with authorization)."
    },
    {
      "name": "ORCA_PRINTER_ID",
      "description": "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."
    }
  ]
}

Tools

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No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "orcaslicer-mcp": {
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.17"
      ],
      "env": {
        "ORCA_API_TOKEN": "<YOUR_ORCA_API_TOKEN>",
        "ORCA_API_URL": "<YOUR_ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<YOUR_ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<YOUR_ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<YOUR_ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<YOUR_ORCA_PRINTER_ID>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "orcaslicer-mcp": {
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.17"
      ],
      "env": {
        "ORCA_API_TOKEN": "<YOUR_ORCA_API_TOKEN>",
        "ORCA_API_URL": "<YOUR_ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<YOUR_ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<YOUR_ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<YOUR_ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<YOUR_ORCA_PRINTER_ID>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "orcaslicer-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.17"
      ],
      "env": {
        "ORCA_API_TOKEN": "<YOUR_ORCA_API_TOKEN>",
        "ORCA_API_URL": "<YOUR_ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<YOUR_ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<YOUR_ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<YOUR_ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<YOUR_ORCA_PRINTER_ID>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "orcaslicer-mcp": {
      "command": "uvx",
      "args": [
        "orcaslicer-mcp==0.1.17"
      ],
      "env": {
        "ORCA_API_TOKEN": "<YOUR_ORCA_API_TOKEN>",
        "ORCA_API_URL": "<YOUR_ORCA_API_URL>",
        "ORCA_MCP_ALLOW_KEYS": "<YOUR_ORCA_MCP_ALLOW_KEYS>",
        "ORCA_PRINTER_URL": "<YOUR_ORCA_PRINTER_URL>",
        "ORCA_PRINTER_API_KEY": "<YOUR_ORCA_PRINTER_API_KEY>",
        "ORCA_PRINTER_ID": "<YOUR_ORCA_PRINTER_ID>"
      }
    }
  }
}

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