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DrawPad

Official registry Media and design

Design 3D-printable keychains, cookie cutters, signs and parts: watertight STL plus preview. macOS.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @opticell/drawpad-mcp
Claude Code 
claude mcp add drawpad -- npx -y @opticell/drawpad-mcp@2.0.0 mcp
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "drawpad": {
            "command": "npx",
            "args": [
                "-y",
                "@opticell/drawpad-mcp@2.0.0",
                "mcp"
            ]
        }
    }
}
MCPB package https://github.com/TeamDzX/drawpad-mcp/releases/download/v2.0.0/DrawPad.mcpb

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. DrawPad MCP
  2. Install
  3. What Claude can do
  4. Open designs in DrawPad Pro.stl

DrawPad MCP

This repository is where DrawPad MCP is released and supported: DrawPad.mcpb for Claude Desktop is on the Releases page, and bugs and requests go in Issues. All of Opticell's free tools for Claude: opticell-mcp.

Let Claude design things you can 3D-print. Ask for "a keychain that says LUNA", "a 60 mm star cookie cutter" or "a plant label for basil". Claude builds it with the engine from DrawPad Pro.stl, shows you a preview, and saves a watertight STL for your slicer plus a DrawPad project you can keep editing on iPad.

macOS (Apple silicon and Intel).

Install

Claude Desktop: download DrawPad.mcpb from https://www.opticell-limited.com/drawpad and double-click it.

Claude Code

claude mcp add drawpad -- npx -y @opticell/drawpad-mcp mcp

Any other MCP client: run npx -y @opticell/drawpad-mcp mcp as a stdio server.

What Claude can do

  • Templates: keychain, cookie cutter (heart, star, circle, flower, cloud or any outline), name sign, coaster, gift tag, stencil.
  • Custom designs: circles, rectangles, polygons, stars, hearts and text, with holes, stacked layers and thin walls, all in millimetres.
  • Check an STL: size, volume, filament weight, and whether it's watertight.

Every design reports its size, volume and grams of PLA/PETG, and comes with a rendered preview. Files go to ~/Documents/DrawPad Designs.

Open designs in DrawPad Pro.stl

AirDrop the .lsproj file to your iPad or iPhone, or save it to iCloud Drive, and open it. DrawPad imports it as a new project, and templates stay editable.

Frequently asked questions

What is DrawPad?

Design 3D-printable keychains, cookie cutters, signs and parts: watertight STL plus preview. macOS.

How do I install DrawPad?

It runs on your machine. In Claude Code: claude mcp add drawpad -- npx -y @opticell/drawpad-mcp@2.0.0 mcp. For other clients, paste the JSON configuration from this page into their MCP settings.

Does DrawPad need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is DrawPad open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains DrawPad?

It is published by TeamDzX. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.