Atlas / MCP servers / daobataotie / Cad

CadSAFE

Name: Cad
Author: daobataotie

mcp/daobataotie/cad-1

MCP server by daobataotie · ai · cad · cadmcp · Audited 2026-09-30

⚑ Report / re-scan Source ↗

CAD MCP Server

Verdict

SAFE

Grade

Trust score

89 /100

Exposed tools

24 18r · 6w · 0d

Transport

streamable-http

License

MIT

Stars

574

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

English | 中文

Project Introduction

CAD-MCP is an innovative CAD control service that allows controlling CAD software for drawing operations through natural language instructions. This project combines natural language processing and CAD automation technology, enabling users to create and modify CAD drawings through simple text commands without manually operating the CAD interface.

Version 2.0 is fully upgraded based on the latest MCP specification (FastMCP, structured output, tool annotations, progress notifications, Streamable HTTP), and adds 35 tools in total covering querying, editing, layers, drawing management, blocks, and command passthrough — forming a complete "draw → inspect → correct" feedback loop.

Features

CAD Control Functions

Multiple CAD Software Support: Supports mainstream CAD software including AutoCAD, GstarCAD (GCAD) and ZWCAD
Basic Drawing Functions:
Line drawing
Circle drawing
Arc drawing
Ellipse drawing
Rectangle drawing
Polyline drawing
Text addition
Pattern filling
Dimension annotation
Query Functions (the AI can see the actual drawing content):
List all layers
List entities in model space (returns editable entity handles)
Query detailed entity properties by handle (coordinates/radius/text content, etc.)
Screenshot of the CAD window for preview
Editing Functions: erase, move, rotate, scale, copy, mirror, offset, array (linear/polar), undo/redo
Layer Management: Create and switch layers, query layer states
Drawing Management: New / open / close / save drawings (DWG/DXF)
Block Operations: Create, insert, and list blocks
Command Passthrough: Execute any CAD command via send_command (an escape hatch for everything else)

MCP Protocol Features

Structured Output: All tools return structuredContent with an outputSchema that clients

Read from source at commit 9d178617ba21OBSERVED · 2026-09-30

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.

claude-code

claude mcp add cad-mcp -- uvx cad-mcp

claude-desktop

{
  "mcpServers": {
    "cad-mcp": {
      "command": "uvx",
      "args": [
        "cad-mcp"
      ]
    }
  }
}

Exposed tools (24)

18 read · 6 write · 0 destructive.

Tool	Risk	Description
`add_dimension`	write	在CAD中添加线性标注(text_position 不指定时自动放在中点上方)
`array_linear_entity`	read	矩形阵列:沿位移向量方向复制 count-1 份(含原实体共 count 个)
`array_polar_entity`	read	环形阵列:绕中心点在 total_angle 角度范围内复制 count-1 份
`copy_entity`	read	复制实体并平移指定位移,返回新实体句柄
`create_block`	write	创建图块定义(若同名图块已存在则直接返回)
`create_layer`	write	创建新图层并设为当前图层(若已存在则直接激活)
`draw_arc`	read	在CAD中绘制弧(角度单位:度)
`draw_circle`	read	在CAD中绘制圆
`draw_ellipse`	read	在CAD中绘制椭圆(rotation 为旋转角度,单位:度)
`draw_hatch`	read	在CAD中绘制填充(points 为闭合边界点集,至少3个点)
`draw_line`	read	在CAD中绘制直线
`draw_polyline`	read	在CAD中绘制多段线(closed=True 时闭合)
`draw_rectangle`	read	在CAD中绘制矩形(由两个对角点确定)
`draw_text`	read	在CAD中添加单行文本
`insert_block`	write	在模型空间插入图块引用(返回图块引用实体的句柄)
`mirror_entity`	read	沿两点确定的镜像轴镜像实体(保留原实体),返回新实体句柄
`move_entity`	write	移动实体(displacement 为位移向量 [dx, dy, dz])
`offset_entity`	read	偏移实体(正负值决定偏移方向),返回新实体句柄
`process_command`	read	处理自然语言命令并转换为CAD操作(遗留接口)
`redo`	read	重做被撤销的操作
`rotate_entity`	read	绕基点旋转实体(角度单位:度,逆时针为正)
`scale_entity`	read	绕基点缩放实体(scale_factor>1 放大,<1 缩小)
`set_current_layer`	write	切换当前图层(图层必须已存在)
`undo`	read	撤销上一步操作

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

Layer	What it checks	Result
L0	Provenance & inventory	PASS
L1	Static analysis of the code	PASS
L2	Instruction surface (what it tells the agent)	PASS
L3	Class-specific surface	WARN
L4	Behavioural (sandbox)	SKIPPED

What the source does

Filesystem: none-observed
Network: none-observed
Shell: none-observed
Dependencies: not all pinned
Secrets in source: none-found

Findings (8)

MEDIUMAuth / authz · mcp.remote_no_auth · CWE-287, CWE-862

streamable-http

Why it matters. a network transport with no auth environment variable found

Fix. require a token