What an agent can doCopy Anchor Link

Your own AI agent (Claude Code, Claude Desktop or claude.ai, Codex, Cursor, VS Code, or any other MCP client) can drive the device modeler for you. It is most useful for a device with lots of ports: it reads your photos, drawings and datasheets and places every opening for you.

It can:

• list your drafts, start a new device or part, or start a new revision (or a credited copy) of a published one;
• set the body and its shape (box, rounded, round, tapered, stacked, or an extruded outline), feet, weight, finishes, and where each number comes from;
• make parts (shelves, trays, brackets, panels, plates) with how they mount on rack rails and the decks devices stand on;
• trace a face on a photo or drawing by numbers, and place ports, zones, LEDs and buttons;
• draw each face so it can check its work against your photos;
• keep a datasheet with the device, from a public URL or a PDF on your computer;
• save the draft, and publish it or submit it for review.

Everything it does shows live in the modeler if you have the draft open. See Live sync.

The serverCopy Anchor Link

• URL: https://rack-maker.cbnsndwch.dev/mcp
• Transport: Streamable HTTP
• Sign-in: OAuth, in your browser

The modeler also shows this under Faces and ports → Use with your AI agent.

Signing inCopy Anchor Link

The first time your agent connects, it opens Rack Maker in your browser:

1. If you aren't signed in to Rack Maker in that browser, choose Open Rack Maker to sign in, sign in, then come back to the tab and choose Continue.
2. The page asks whether to allow your agent to model devices as you (@your-handle). Choose Allow.

Your agent then works as you, with no password of its own. Its sign-in renews itself while you use it, and expires after 30 days without use; then the agent asks you to sign in again.

To sign an agent out, remove the Rack Maker server from your client (or use the client's own sign-out for MCP servers).

PermissionsCopy Anchor Link

The agent has exactly your permissions, no more:

• It sees and changes only your own drafts. Someone else's draft looks like it doesn't exist.
• Publishing works as it does for you in the browser. With contributor access, the device is published with its model file, built on the server. Without it, publishing submits the device for review. See Publishing and Contributing.
• You must have agreed to share your contributions under CC BY-SA 4.0 on the site before your agent can submit or publish. The browser asks the first time you publish anything.

A good agent asks you before it publishes; the server tells it to.

LimitsCopy Anchor Link

On top of your account's usual limits:

Past a limit, the tool answers "too many calls: wait a few minutes" (or similar), and works again shortly after.

Connecting your clientCopy Anchor Link

Claude CodeCopy Anchor Link

Run this, then /mcp to sign in:

claude mcp add --transport http rack-maker https://rack-maker.cbnsndwch.dev/mcp

Claude Desktop, claude.aiCopy Anchor Link

Settings → Connectors → Add custom connector, with https://rack-maker.cbnsndwch.dev/mcp. It opens Rack Maker to sign in.

CodexCopy Anchor Link

Run:

codex mcp add rack-maker --url https://rack-maker.cbnsndwch.dev/mcp
codex mcp login rack-maker

CursorCopy Anchor Link

In ~/.cursor/mcp.json:

{ "mcpServers": { "rack-maker": { "url": "https://rack-maker.cbnsndwch.dev/mcp" } } }

VS CodeCopy Anchor Link

In .vscode/mcp.json:

{ "servers": { "rack-maker": { "type": "http", "url": "https://rack-maker.cbnsndwch.dev/mcp" } } }

Try itCopy Anchor Link

Once connected, ask, for example:

Model my router from the photos in ~/Pictures/router: the front, the rear and the datasheet PDF. Mark what you measured.

The draft appears in your drafts and opens in the modeler at /catalog/model/<your-handle>/<slug>/<rev>. Ask for changes, or make them yourself in the browser.

For a full example, see Walkthrough: a DGX Spark. To see how the agent turns photos into millimetres, see How an agent measures, and for every tool, Agent tools.