# civil3d-mcp
English | [简体中文](README_zh.md)
## Description
civil3d-mcp allows you to interact with Autodesk Civil 3D using the MCP protocol through MCP-supported clients (such as Claude, Cline, etc.).
This project is the server side (providing Tools to AI), and you need to use a Civil 3D MCP plugin (driving Civil 3D) in conjunction.
Join [Discord](https://discord.gg/cGzUGurq) | [QQ Group](http://qm.qq.com/cgi-bin/qm/qr?_wv=1027&k=kLnQiFVtYBytHm7R58KFoocd3mzU_9DR&authKey=fyXDOBmXP7FMkXAWjddWZumblxKJH7ZycYyLp40At3t9%2FOfSZyVO7zyYgIROgSHF&noverify=0&group_code=792379482)
## Features
- Allow AI to get data from the Civil 3D project
- Allow AI to drive Civil 3D to create, modify, and delete elements
- Send AI-generated code to Civil 3D to execute (may not be successful, successful rate is higher in some simple scenarios with clear requirements)
## Requirements
- nodejs 18+
> Complete installation environment still needs to consider the needs of the Civil 3D MCP plugin, please refer to its documentation.
## Installation
### 1. Build local MCP service
Install dependencies
```bash
npm install
```
Build
```bash
npm run build
```
### 2. Client configuration
**Claude client**
Claude client -> Settings > Developer > Edit Config > claude_desktop_config.json
```json
{
"mcpServers": {
"civil3d-mcp": {
"command": "node",
"args": ["<path to the built file>\\build\\index.js"]
}
}
}
```
Restart the Claude client. When you see the hammer icon, it means the connection to the MCP service is normal. (example shows Civil 3D, will be Civil 3D)
## Framework
```mermaid
flowchart LR
CladueDesktop --> civil3d-mcp --> SocketService--commandName-->CommandlSet--command-->CommandExecute
CommandManager --> CommandlSet
CommandExecute --executeResult--> SocketService
CommandProject1 --> CommandManager
CommandProject2 --> CommandManager
CommandProject... --> CommandManager
subgraph ide1 [MCPClient]
CladueDesktop
end
subgraph ide2 [MCPServer]
civil3d-mcp
end
subgraph ide3 [Civil 3D]
subgraph ide3.1 [civil3d-mcp-plugin]
SocketService
CommandlSet
CommandManager
CommandExecute
end
end
```
## Supported Tools
| Name | Description |
| ---------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| `get_drawing_info` | Retrieves basic information about the active Civil 3D drawing. |
| `list_civil_object_types` | Lists major Civil 3D object types available or present in the current drawing (e.g., Alignments, Surfaces). |
| `get_selected_civil_objects_info` | Gets basic properties of currently selected Civil 3D objects. Can limit the number of returned objects. |
| `create_cogo_point` | Creates a new COGO (Coordinate Geometry) point in the Civil 3D drawing. |
| `create_line_segment` | Creates a simple line segment in the Civil 3D drawing. |
