Assistant connector
Design a house by asking Claude, ChatGPT or Grok
Connect your assistant to your AI Plan Creator account and describe the home you want. The assistant draws it in AI Plan Creator, shows you the plan and changes it as you talk. Everything it makes is in your account, ready to open in 2D and 3D.
What you can do
Start a design
Say what you want: how many bedrooms, how many storeys, the style, the size of the plot. The assistant sets out a whole house with rooms, doors, windows and a roof.
Change it as you talk
Add a room, make one bigger, move a door, furnish the lounge, lay out the garden, try another style. Each change is saved to the design in your account.
See it and share it
The assistant describes the result and gives you a link to open the design in AI Plan Creator. Where it shows apps in the chat, as Claude and ChatGPT do, you can turn the building around in 3D, see its elevations and sections, walk through it and look at the plan of each storey. Ask for a share link to send to someone else.
Things to ask
- “Design a 3 bedroom coastal house with a garage and show me the plan”
- “List my designs and tell me which one has the biggest living room”
- “In my beach house, make the main bedroom 1 metre wider and add an ensuite”
- “Furnish the living room in a Scandinavian style”
- “Add a deck and a vegetable garden behind the house”
- “Give me a link to this design that I can send to my builder”
Connect your assistant
You need an AI Plan Creator account and the connector address below. The steps take about a minute. You never give an assistant your AI Plan Creator sign-in: it sends you here to approve the connection.
https://aiplancreator.com/mcpVideo tutorials
Claude
Every Claude plan. The Free plan allows one custom connector.
- 1In Claude on the web or in the desktop app, open Customize, then Connectors, and choose Add custom connector.
- 2Type AI Plan Creator as the name, paste the connector address and choose Add. If Claude asks how to sign in, leave its suggested choices as they are.
- 3Claude opens AI Plan Creator in your browser. Sign in to AI Plan Creator if asked. You will see which assistant is asking and what it wants to do: see your designs, and create and change them. Approve it and you are sent back.
- 4In a chat, press +, open Connectors and switch AI Plan Creator on. The first time Claude uses it, it asks whether to allow it once or always.
Good to know
- On Team and Enterprise plans an owner adds the connector first, under Organization settings, then Connectors. After that each person connects their own AI Plan Creator account.
- Add it on the web or in the desktop app first. It then appears in the phone app as well.
ChatGPT
Plus, Pro, Business, Enterprise and Edu plans, on the web. Free and Go plans cannot add a connector by its address.
- 1In ChatGPT on the web, open Settings, then Security and login, and switch on Developer mode.
- 2Go to chatgpt.com/plugins and press the plus button. Name it AI Plan Creator, paste the connector address where it asks for the MCP server URL, and create it.
- 3ChatGPT sends you to AI Plan Creator. Sign in to AI Plan Creator if asked. You will see which assistant is asking and what it wants to do: see your designs, and create and change them. Approve it and you are sent back.
- 4Start a new chat and pick AI Plan Creator from the + menu, or type @AI Plan Creator, then ask.
Good to know
- ChatGPT calls a connector a plugin, and calls its address an MCP server URL.
- In a Business, Enterprise or Edu workspace an admin has to allow developer mode before you can switch it on.
- OpenAI’s own pages disagree on whether Plus and Pro accounts can change designs this way or only look at them. If ChatGPT will not make a change, that is the likely reason.
- AI Plan Creator is not in ChatGPT’s plugin directory yet. A listing there is what would let Free and Go plans use it.
Grok
Grok on the web. xAI says connectors are open to everyone, but others report that adding your own needs a paid plan, so you may need one.
- 1Go to grok.com/connectors, choose New Connector, then Custom.
- 2Name it AI Plan Creator, paste the connector address as the server URL and add it.
- 3Grok opens a small window for AI Plan Creator. Sign in to AI Plan Creator if asked. You will see which assistant is asking and what it wants to do: see your designs, and create and change them. Approve it and you are sent back. If no window opens, allow pop-ups for grok.com and try again.
- 4AI Plan Creator appears in your list of connectors with a switch for each thing it can do. Open a chat and ask.
Good to know
- In a Business or Enterprise team an admin adds the connector first, in the xAI console under Grok Business, then Connectors.
- Grok may give you a link to a plan drawing instead of showing the picture in the chat. Open the link to see it.
- Grok inside the X app cannot use connectors.
If an assistant asks you for a client ID
Most assistants introduce themselves to AI Plan Creator without your help. If one asks you to type the sign-in details yourself (Grok can), use these:
- Client ID
aiplancreator-connector- Client secret
- Leave it empty.
- Authorization endpoint
https://aiplancreator.com/oauth/authorize- Token endpoint
https://aiplancreator.com/oauth/token- Scopes
designs:read designs:writeLeave out designs:write for a connection that may only look.- Token auth method
nonePKCE only.
What the assistant can and cannot see or do
The connector is a short list of design tools. An assistant can use those tools on your account and nothing else.
It can
- See the designs in your account, and designs other people have invited you to edit: their names, rooms, sizes, furniture, garden and plan drawings.
- See your name, the name of your plan and how many designs you have, so it knows whether there is room for another.
- Create new designs in your account, up to the number your plan allows.
- Change your designs: rooms, doors and windows, furniture, storeys, the outside, the garden and the style. It can remove a room or a piece of furniture, and when you ask it to start a design over it replaces everything in that design.
- Make a view-only link to a design you own, when you ask for one. Anyone who has the link can look at the design until you turn the link off in AI Plan Creator, under Share.
- Show you plan drawings and, in assistants that show apps in the chat, the design in 3D with its views and a walkthrough. Both are loaded from web addresses that anyone who has the address can open for an hour (the 3D view reads the design itself from its address); they stop working sooner if the design is changed or you disconnect the assistant.
- Only what you approve. A connection that may only look cannot change anything.
It cannot
- Delete a design. Only you can do that, in AI Plan Creator.
- See your payment details, or anything about what you have bought.
- Buy designs from the store, or change your plan.
- Use the AI picture, sketch, photo and video features, or use up your monthly AI allowance.
- Reach anyone else’s account, or designs that are not shared with you.
- Rename or share a design that somebody else owns.
- Sign in to AI Plan Creator as you. It holds a key that works for the connector and nothing else.
You can disconnect at any time
Every connection is listed on the Assistants page with the date it was made and when it was last used. Press Disconnect and that assistant is cut off at once; your designs stay as they are. The connector receives only what the assistant sends it: which tool to use, and the details for it. What you type to the assistant itself is handled by its maker, under their terms.
For developers
The connector is a Model Context Protocol server over HTTP at the address above. It works with the assistants’ developer APIs and with coding assistants in a terminal. The developer APIs and your own scripts cannot open a browser for you to sign in, so they use a personal access token. Claude Code and Grok Build can sign you in through the browser, or use a token. To use one, make it on the Assistants page and put it where the examples say YOUR_AIPLANCREATOR_TOKEN. A token can be read-only, and you can revoke it whenever you like.
Claude Messages API
Needs the beta header shown. The connector goes in mcp_servers and must be named again in tools.
curl https://api.anthropic.com/v1/messages \
-H "content-type: application/json" \
-H "x-api-key: $ANTHROPIC_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "anthropic-beta: mcp-client-2025-11-20" \
-d '{
"model": "claude-opus-5-5",
"max_tokens": 16000,
"messages": [
{
"role": "user",
"content": "Design a 3 bedroom coastal house with a garage and show me the plan"
}
],
"mcp_servers": [
{
"type": "url",
"url": "https://aiplancreator.com/mcp",
"name": "plotpilot",
"authorization_token": "YOUR_AIPLANCREATOR_TOKEN"
}
],
"tools": [{ "type": "mcp_toolset", "mcp_server_name": "plotpilot" }]
}'OpenAI Responses API
The token goes in authorization and has to be sent with every request. Without require_approval the API stops and asks before each tool.
curl https://api.openai.com/v1/responses \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OPENAI_API_KEY" \
-d '{
"model": "gpt-6-astra",
"input": "Design a 3 bedroom coastal house with a garage and show me the plan",
"tools": [
{
"type": "mcp",
"server_label": "plotpilot",
"server_description": "Design houses, interiors and gardens in AI Plan Creator.",
"server_url": "https://aiplancreator.com/mcp",
"authorization": "YOUR_AIPLANCREATOR_TOKEN",
"require_approval": "never"
}
]
}'xAI API (Grok)
Works with the Responses API only, not Chat Completions. Grok calls tools without asking first, so use a read-only token if you only want it to look.
curl https://api.x.ai/v1/responses \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $XAI_API_KEY" \
-d '{
"model": "grok-4.7",
"input": [
{
"role": "user",
"content": "Design a 3 bedroom coastal house with a garage and show me the plan"
}
],
"tools": [
{
"type": "mcp",
"server_url": "https://aiplancreator.com/mcp",
"server_label": "plotpilot",
"server_description": "Design houses, interiors and gardens in AI Plan Creator.",
"headers": { "Authorization": "Bearer YOUR_AIPLANCREATOR_TOKEN" }
}
]
}'Claude Code
Run the first line, then type /mcp inside Claude Code to sign in. The second form uses a personal token instead.
claude mcp add --transport http plotpilot https://aiplancreator.com/mcp
claude mcp add --transport http plotpilot https://aiplancreator.com/mcp \
--header "Authorization: Bearer YOUR_AIPLANCREATOR_TOKEN"Grok Build
Run the first line, then open /mcps, pick AI Plan Creator and press i to sign in. The second form uses a personal token instead.
grok mcp add --transport http plotpilot https://aiplancreator.com/mcp
grok mcp add --transport http plotpilot https://aiplancreator.com/mcp \
--header "Authorization: Bearer YOUR_AIPLANCREATOR_TOKEN"Any other tool that speaks the Model Context Protocol can connect the same way: give it the address, and either let it sign you in through the browser or send the token as Authorization: Bearer.