Connect Claude to VCAD

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

Once you are done, VCAD has a tick in Claude's list of connectors, and the AI box in VCAD says Connected. You set it up once: add VCAD on claude.ai and it is there in the Claude desktop app as well, and the other way round.

What you need before you start

A VCAD Pro license.
A Claude account.

Turn on the AI bridge in VCAD

Click the account menu in the top right corner of VCAD.
Choose Settings.
Click the Modules tab.
Click the switch next to AI-Bridge.
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.
Under AI Mode, choose whether Claude 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 Claude

Choose Customize in the list on the left in Claude on claude.ai or in the Claude desktop app.
Choose Connectors at the top of the page. The Connectors tab opens with + Add in the top right corner.
Tip: If VCAD is already under Yours with a Connect button, your company's Claude admin has added it for you. Click Connect. The VCAD portal opens, and you go on at item 2 under Give Claude access to VCAD.
Click + Add.
Tip: On Claude Team or Enterprise, only an owner can add a custom connector. The owner goes to Organization settings, Connectors, Add, Custom, Web and enters the same address. Everyone else then clicks Connect next to VCAD.
Choose Add custom connector.
Fill in the two fields of the form:
- Name: VCAD
- MCP server URL: paste the address you copied, https://mcp.vcad.dk/mcp
Click Continue. The next page shows that Claude has chosen Sign in now and Register automatically itself. Leave them as they are.

Give Claude access to VCAD

Click Add at the bottom of the form. The VCAD portal opens on the Authorize access page with your company's name.
Tip: If the VCAD portal asks you to sign in, use your VCAD login: the email and password you use in VCAD.
Click Allow. You are back in Claude, and VCAD has a tick under Status in the list of connectors.

Use Claude with VCAD

Keep the session open in VCAD. The AI box in the bottom right corner says Connected.
In a new chat, ask Claude 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.
Tip: The first time, or if Claude does not use VCAD: click + in the message box, choose Connectors and check that VCAD is switched on.
If AI Mode is on Ask, click Zoom to change.
Click Accept. The change is in the drawing.
Tip: If you do not want the change, click Reject instead.

If something doesn't work

What you see	What to do
Claude says it cannot reach VCAD	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.
VCAD is missing in a chat under + and Connectors	Go to Customize, Connectors, Yours. If VCAD shows Connect, click it and sign in again.
A connector with this URL already exists in your organization	VCAD is already added. Close the window and click Connect next to VCAD under Yours.

Stuck? Write to us at info@vcad.dk

Updated 11 November 2026