Onshape MCP Server

by gpambrozioio.github.gpambrozio/onshapev0.1.2

MCP server for Onshape CAD: 87 tools for documents, part studios, sketching, features, assemblies and export, with browser sign-in.

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Active18d ago

Install Onshape MCP server

claude mcp add onshape -e ONSHAPE_ACCESS_KEY='<onshape-access-key>' -e ONSHAPE_SECRET_KEY='<onshape-secret-key>' -- npx -y @gpambrozio/onshape-mcp

{
  "mcpServers": {
    "onshape": {
      "command": "npx",
      "args": [
        "-y",
        "@gpambrozio/onshape-mcp"
      ],
      "env": {
        "ONSHAPE_ACCESS_KEY": "<onshape-access-key>",
        "ONSHAPE_SECRET_KEY": "<onshape-secret-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "onshape": {
      "command": "npx",
      "args": [
        "-y",
        "@gpambrozio/onshape-mcp"
      ],
      "env": {
        "ONSHAPE_ACCESS_KEY": "<onshape-access-key>",
        "ONSHAPE_SECRET_KEY": "<onshape-secret-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "onshape": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@gpambrozio/onshape-mcp"
      ],
      "env": {
        "ONSHAPE_ACCESS_KEY": "<onshape-access-key>",
        "ONSHAPE_SECRET_KEY": "<onshape-secret-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "onshape": {
      "command": "npx",
      "args": [
        "-y",
        "@gpambrozio/onshape-mcp"
      ],
      "env": {
        "ONSHAPE_ACCESS_KEY": "<onshape-access-key>",
        "ONSHAPE_SECRET_KEY": "<onshape-secret-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
ONSHAPE_ACCESS_KEY	—	yes	Onshape API access key. Optional: the server signs in through the browser when this is not set.
ONSHAPE_SECRET_KEY	—	yes	Onshape API secret key, paired with ONSHAPE_ACCESS_KEY.
ONSHAPE_MCP_OUTPUT_DIR	—	—	Directory for exported STL/STEP files and renders. Defaults to the working directory.

Freshness

Active — last maintenance signal 18d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-21 · 18d ago · GitHub
Latest release
2026-09-21 · 18d ago · GitHub · v0.1.2
Package published
no data · npm/PyPI
Registry entry updated
2026-09-21 · 18d ago · official registry · v0.1.2

FAQ

›How do I install the Onshape MCP server in Claude Code?

Run: claude mcp add onshape -e ONSHAPE_ACCESS_KEY='<onshape-access-key>' -e ONSHAPE_SECRET_KEY='<onshape-secret-key>' -- npx -y @gpambrozio/onshape-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Onshape require an API key?

Yes. It expects ONSHAPE_ACCESS_KEY, ONSHAPE_SECRET_KEY, of which 2 are secrets.

›Can I use Onshape as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Onshape in the official MCP registry?

Yes, as io.github.gpambrozio/onshape.