# Connect ChatGPT to VCAD

> Let ChatGPT read the session you have open in VCAD and suggest changes for you to accept, or do the work automatically.

5 min · Updated 2026-11-11 · https://vcad.dk/en/help/connect-chatgpt-to-vcad

Once you are done, VCAD is under **Installed** on the Plugins page in ChatGPT with your VCAD account connected, and the AI box in VCAD says **Connected**. You set it up once on chatgpt.com in your browser.

## What you need before you start

- A VCAD Pro license.

- ChatGPT Business, Enterprise or Edu.

## Turn on the AI bridge in VCAD

1. Click the account menu in the top right corner of VCAD.

    ![The VCAD account menu open and ringed, with the name and email at the top and Settings, About, Remote support and Sign out below them](https://vcad.dk/help/connect-chatgpt-to-vcad/vcad-account-menu-en.png)

2. Choose **Settings**.

3. Click the **Modules** tab.

4. Click the switch next to **AI-Bridge**.

    ![Settings on the Modules tab with the AI-Bridge switch on and ringed, the address https://mcp.vcad.dk/mcp next to it and AI Mode on Ask below it](https://vcad.dk/help/connect-chatgpt-to-vcad/vcad-bridge-on-en.png)

5. Click the copy button inside the field with the address `https://mcp.vcad.dk/mcp`. The button briefly turns into a tick, and the address is copied.

6. Under **AI Mode**, choose whether ChatGPT asks first: with **Ask** every change waits for you to accept it, and with **Auto** it is in the drawing at once.

## Add VCAD to ChatGPT

> **Admins and owners only:** in ChatGPT Business only your admins and owners can add VCAD, and in Enterprise and Edu also the members they allow. Once they have added VCAD for you, you find it under **Settings**, **Plugins**.

1. Go to [chatgpt.com/plugins](https://chatgpt.com/plugins).

    ![The Plugins page on chatgpt.com with its heading and the line under it ringed, Add in the top right corner and popular plugins below](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-plugins-page.png)

2. Click **Add** in the top right corner.

    ![The Add menu open with Create plugin, Upload plugin archive and Add custom MCP server, with Add and Add custom MCP server ringed](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-add-menu.png)

3. Choose **Add custom MCP server**.

    ![The empty Add custom MCP server form with its heading ringed, the empty Name, Description and Connection fields and OAuth under Authentication](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-form-empty.png)

4. Fill in the form:

    - **Name:** `VCAD`

    - **Connection:** paste the address you copied, `https://mcp.vcad.dk/mcp`, with **Server URL** chosen

    - **Authentication:** leave it on **OAuth**

    ![The Add custom MCP server form with VCAD under Name and https://mcp.vcad.dk/mcp under Connection, both fields ringed, Server URL chosen and OAuth under Authentication](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-form-fields.png)

5. Scroll to the bottom of the form.

    ![The bottom of the form with the I understand and want to continue checkbox and the Create as a plugin button, both ringed](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-form-create.png)

6. Tick **I understand and want to continue**.

## Give ChatGPT access to VCAD

1. Click **Create as a plugin**. The VCAD portal opens on the **Authorize access** page with your company's name.

    ![The VCAD portal page Authorize access, where ChatGPT asks for access to your VCAD account, with the Deny and Allow buttons](https://vcad.dk/help/connect-chatgpt-to-vcad/portal-consent.png)

    > If the VCAD portal asks you to sign in, use your VCAD login: the email and password you use in VCAD.

2. Click **Allow**. You are back in ChatGPT.

3. Click **VCAD** under **Installed** in the list on the left of the Plugins page. The VCAD page opens with **Settings** at the top.

    ![The VCAD page in ChatGPT with the Settings button ringed next to Try in chat](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-vcad-page.png)

4. Click **Settings**. Your VCAD account is listed under **Connected accounts**.

    ![The settings for VCAD in ChatGPT with a VCAD account marked Primary under Connected accounts, ringed](https://vcad.dk/help/connect-chatgpt-to-vcad/chatgpt-connected.png)

## Use ChatGPT with VCAD

1. Keep the session open in VCAD. The AI box in the bottom right corner says **Connected**.

    ![The bottom right corner of VCAD with the AI box, which says Connected, ringed](https://vcad.dk/help/connect-chatgpt-to-vcad/vcad-connected-en.png)

2. In a new chat, ask ChatGPT for something in plain words, for example *"Find every point with the code WELL, put a well on each of them and draw the pipe between them with its slope"* or *"Set all points on layer Terrain to elevation 2.5"*. With **AI Mode** on **Auto**, the change is in the drawing at once. With **Ask**, it appears in VCAD as an **AI change proposal**.

    ![An AI change proposal in VCAD, ringed, to set 13 points on layer Terrain to Z 2.5, with the buttons Zoom to change, Reject and Accept and the points it changes highlighted in the drawing](https://vcad.dk/help/connect-chatgpt-to-vcad/vcad-proposal-en.png)

    > If ChatGPT does not use VCAD, click **Plugins** under the message box and choose **VCAD**.

3. If **AI Mode** is on **Ask**, click **Zoom to change**.

4. Click **Accept**. The change is in the drawing.

    > If you do not want the change, click **Reject** instead.

> With the two buttons next to **Connected** in the AI box you can show ChatGPT something in the drawing: one picks objects, the other a point.

## If something doesn't work

| What you see | What to do |
| --- | --- |
| ChatGPT cannot get hold of your session | Open a session in VCAD. Check that **AI-Bridge** is on and that the AI box says **Connected**. |
| VCAD's Settings has no Modules tab or no AI bridge | AI comes with a VCAD Pro license. Ask your VCAD administrator to give you one. If you are the administrator, choose **Administration** when you sign in, and tick the box next to the user under **Users** in the column for Pro. |
| **AI module not enabled** | You do not have a VCAD Pro license. Do as in the row above. |
| **Reconnecting…** | VCAD has lost its connection and keeps trying again. Check your internet, and reload the page if it stays. |

## Related guides

- [Connect Claude to VCAD](https://vcad.dk/en/help/connect-claude-to-vcad.md): Let Claude read the session you have open in VCAD and suggest changes for you to accept, or do the work automatically.
- [Connect the ChatGPT desktop app to VCAD](https://vcad.dk/en/help/connect-the-chatgpt-desktop-app-to-vcad.md): Let the ChatGPT app on your computer read the session you have open in VCAD and suggest changes for you to accept, or do the work automatically.

Stuck? Write to us at info@vcad.dk