Overview

Connect an AI agent to the drawings open in AutoCAD and AutoCAD Plant 3D.

The PlantEngineer AutoCAD MCP Server lets an MCP client such as Claude, Cursor, or GitHub Copilot work in the drawings your designers already have open. The agent places components, checks the model against your piping specifications, answers questions about the model, and makes batch edits. Your designers still make the design decisions.

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How it connects

The server is an AutoCAD plugin on the designer’s workstation. It talks to AutoCAD through its .NET API, inside the AutoCAD process. Your MCP client connects over the Model Context Protocol (MCP) and receives only the results it asks for.

Your MCP client

Claude, Cursor, or GitHub Copilot

↕ MCP · tool calls and results

Your workstation

AutoCAD MCP Server

Your client asks before changes

.NET ⇄

AutoCAD / Plant 3D

2027, Windows

Your drawings, project, and specifications stay where they are.

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Supported versions

AutoCAD and AutoCAD Plant 3D 2027 on Windows.

Your MCP client asks the designer before each change, and AutoCAD can be set to read-only for agents.

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Next steps

Install the plugin

Add the server to each designer’s workstation.

Connect your client

Point your MCP client at the local server.

Security and IT review

What runs where and what is logged.