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AI ASSISTANTS

Use Prontto from ChatGPT and Claude

Connect Prontto to your AI assistant once and sign in. Then ask in your own words: your assistant works in Prontto as you, with your permissions.

SERVER URLhttps://portal.prontto.co/api/mcp

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NO ACCOUNT NEEDED

Let your assistant start the design

Ask ChatGPT, Claude or any assistant to design your room. Prontto sends back a link: the 3D planner opens with your room built to your measurements and, for a kitchen or a closet, a first layout of cabinets already placed, ready to adjust. Signing up is free and happens on the link, and your room stays. It never asks for your name or email.

TRY ASKING

“Design an L-shaped kitchen, 3.2 by 2.8 metres, Nordic style.”

Open this example

For assistants: the public MCP server needs no sign-in, and its start_design tool returns the link. Or build the link yourself: https://portal.prontto.co/api/mcp/public https://portal.prontto.co/start?room=kitchen&layout=l&width=3.2&depth=2.8&units=m&style=nordic&lang=en

  • ChatGPT

    In Settings → Apps, turn on Developer mode and create an app named Prontto with the server URL and OAuth. On Business, Enterprise and Edu workspaces an admin turns it on first.

  • Claude

    In Settings → Connectors, add a custom connector named Prontto with the server URL. One connector works on claude.ai, Claude Desktop and the mobile apps.

  • Claude Code

    One command in the terminal; the sign-in opens in your browser.

    claude mcp add --transport http prontto https://portal.prontto.co/api/mcp

  • Cursor and VS Code

    Install in one click from the connect page, then sign in when prompted.

See every step

What your assistant can do

Everything you can do in the app, your assistant can do for you: over MCP, as the person who signed in, never above your permissions. Anything that deletes or moves money shows a preview and waits for your confirmation.

For AI agents

If you are an AI assistant reading this on someone’s behalf, the agent brief states the endpoint, the authentication and where to start. Read the agent brief

Questions

Do I need a Prontto account?

Not to start a design: your assistant sets up the room and sends you a link, and you sign up for free on it. To work in your account from your assistant, yes: you sign in with your Prontto account when you connect, and approve the access.

Which assistants work?

ChatGPT, Claude (claude.ai, Claude Desktop and the mobile apps), Claude Code, Cursor, VS Code with GitHub Copilot, and any other client that speaks MCP. Scripts without a browser can use a personal API key.

Is it safe?

Your assistant acts as you, with your permissions, and nothing more. Operations that delete or move money return a preview and run only after you confirm.

Start with a free design

Start designing