kernelCAD

Name: kernelCAD
Author: w1ne

作者：w1ne版本 0.17.1i★ –i在云端运行

注册名称com.kernelcad/kernelcad

安装

概览

作者提供的说明（英文原文）

CAD in ChatGPT and Claude: editable parts, STEP/STL/drawings, in-chat 3D, automatic checks.

PopNx MCP 的三大支柱

这三项永远不会合并成一个分数：意见、测量和人气是不同的东西。

用户评价i暂无评价评价功能将在后续阶段与账户功能一起开放
我们的基础检查i1 项中通过 1 项依据公开信息检查；尚未扫描代码
使用情况i尚未统计★ –

它能帮你做什么

我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。

连接方式: 在云端运行
传输方式: Streamable HTTP
分类: 聊天与邮件

安装

选择你使用的 AI 应用，然后复制设置。

安装之前

基础检查：1 项中通过 1 项
在作者的服务器上运行：你向它提出的内容会经过他们的服务器。
注册中心没有列出需要填写的密钥。

你需要

在云端运行无需安装任何东西，通过互联网连接

你用的是哪个应用？

ClaudeClaude CodeCursorVS CodeChatGPT

在上方选择你的应用。我们会记住它，下次按钮会显示“安装到 …”。

适用于网页版、桌面版和手机版 Claude：

打开 Settings → Connectors
点击 Add custom connector
粘贴下面的地址，然后点击 Add
如果要求登录，请登录作者的服务

https://mcp.kernelcad.com/mcp

在终端中运行这条命令

claude mcp add --transport http kernelcad https://mcp.kernelcad.com/mcp

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "kernelcad": {
      "url": "https://mcp.kernelcad.com/mcp"
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "kernelcad": {
      "type": "http",
      "url": "https://mcp.kernelcad.com/mcp"
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

ChatGPT 只能连接互联网上的服务器：

打开网页版 ChatGPT → Settings → Connectors (Apps)
点击 Create 或 Add（部分套餐需要先在 Advanced 中开启 Developer mode）
粘贴下面的地址，起个名字，然后保存
如果要求登录，请登录作者的服务

https://mcp.kernelcad.com/mcp

菜单名称可能因套餐和版本不同而略有差异。

你的选择通过 Cookie 保存在这台设备上，无需账户。

这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同，请以 README 为准。

它能做什么

我们还没有读取这个服务器的工具列表；我们会轮流检查各个端点。

基础检查i

我们检查的是任何人都能看到的信息；我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月6日

✓ 通过
作者与仓库一致
注册名称已通过域名 kernelcad.com 验证（注册中心会核实域名所有权）
… 尚未检查
仍在维护
我们还没有从 GitHub 读取这个仓库
… 尚未检查
有许可证
我们还没有从 GitHub 读取这个仓库
… 尚未检查
端点有响应
尚未检查；我们会轮流检查各个端点
… 尚未检查
使用 OAuth 登录
尚未检查；我们会轮流检查各个端点
… 尚未检查
工具描述中没有隐藏指令
尚未检查；我们会在检查端点时读取工具列表

与“聊天与邮件”中的其他服务器比较i

星标数多于此分类中其他 1765 个服务器的 0%
发布到注册中心的时间比此分类中其他 1765 个服务器的 72% 更新
基础检查结果等于或优于此分类中其他 1765 个服务器的 100%

与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时，星标数才计入。

常见问题

kernelCAD 安全吗？

它在 1 项适用的基础检查中通过了 1 项。我们没有阅读代码。在添加密钥或令牌之前，请先看看这个服务器要求哪些权限，并使用只具备所需权限的密钥。

它需要哪些密钥或代码？

注册中心没有列出必需的密钥，不过有些服务器会在首次使用时要求你登录。

它在我的电脑上运行还是在云端？

它在作者的云端运行。通过互联网连接，无需安装，但你发送的内容会经过作者的服务器。

它还在维护吗？

GitHub 仓库最后更新于–，最新版本（0.17.1）于10天前进入注册中心。

哪些应用可以使用它？

支持 MCP 的应用，例如 Claude Desktop、Claude Code、Cursor 和 VS Code。它通过 URL 连接，所以接受远程 MCP 服务器的应用也可以使用，例如开启开发者模式的 ChatGPT。

有什么可以替代它？

同一分类中有：Vexa, emailmd, MCP WhatsApp Cloud

替代选择

同一分类中其他作者的服务器，按星标数排序。

如何看卡片：★ GitHub 星标i三大支柱：评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i

Vexa

作者：Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

在云端运行★ 2,949Apache-2.02个月前更新

安装

emailmd

作者：anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

电脑或云端★ 1,385MIT31天前更新

安装

MCP WhatsApp Cloud

作者：codespar

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

在你的电脑上运行★ 277MIT5个月前更新

安装

作者的 README

打开 README

按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。

kernelCAD — CAD for coding agents, with editable source and checks

Describe a mechanical part in ChatGPT, Claude, Codex, Cursor, or the browser. kernelCAD turns the brief into editable parametric CAD, lets you inspect and revise the geometry, and exports STEP, STL, and drawings.

Start here: Open Studio · Connect your agent · Watch real tool workflows · Read the prompt-to-STEP guide

Why not just generate an image? Your design remains .kcad.ts source: named features, editable dimensions and assembly structure. Agents can evaluate it, check constraints and clearances, revise the source, and export files for an engineer to inspect. Reproducible example source and documented checks are public. Geometry checks are not material-strength or manufacturing certification.

Connect a hosted MCP client: https://mcp.kernelcad.com/mcp (no local CAD install). Run locally: npx -y kernelcad mcp (Node.js 22.12+).

Source scope: this repository contains the reusable CAD runtime, CLI, MCP

tools and headless renderer. Hosted UI and commercial services are maintained

separately. Build the reusable tools with npm run build; use npm run dev

for the standalone renderer.

The workflow is: brief → editable .kcad.ts → evaluated B-rep → validation → guided revision → STEP/STL/drawing. OpenCASCADE is the geometry kernel; kernelCAD supplies the agent-first modeling and review workflow.

Manufacturing design use cases

Describe a part, refine its editable CAD source, and export the geometry or drawing needed for the next step. These examples are starting points for designing parts for different processes:

Process	Example	Reusable CAD reference
3D printing	An electronics enclosure with locating lid and PCB posts	Enclosure
CNC milling	A bearing block with mounting holes and a stepped seat	Bearing block
Sheet metal	A four-hole bent bracket with a flat pattern	Bent bracket
Laser or waterjet cutting	A motor mounting plate with pilot and hole patterns	Motor plate
Turning	A shouldered spacer with an axial bore	Shoulder spacer
Assemblies	A bearing, housing, shaft and retainer	Bearing assembly
Injection molding	A drafted housing with board-screw bosses and structural ribs	Moulded housing

The output is CAD for review, not a manufacturing certification. Check dimensions, fit, material and process requirements, and prototype or obtain engineering review as appropriate for the part. The case notes describe what has been checked and what remains open for each model.

Install

Already in ChatGPT and Claude: no install

kernelCAD runs as a connected app in ChatGPT (Apps SDK, with the Studio viewer and paint review inside the chat) and in Claude / claude.ai (custom connector). Add it from the chat settings and sign in:

ChatGPT: connect guide or ChatGPT → Settings → Connectors
Claude: connect guide or claude.ai → Settings → Connectors, URL https://mcp.kernelcad.com/mcp

One account everywhere. The coding-agent plugins below use the same hosted server (https://mcp.kernelcad.com/mcp) and the same kernelCAD sign-in. A model saved from Claude Code, Codex, Cursor, Gemini or Grok opens at the same Studio share link (/p/ ) you see in ChatGPT or Claude. Sign in with the same account in each client.

Ask your agent: “look at kernelcad.com and install the mcp”. Agent-readable installation instructions cover hosted setup, local CLI setup, and connection verification.

Local MCP server: one line

Run the MCP server over stdio with no install (Node.js 22.12 or newer):

npx -y kernelcad mcp

Claude Code: claude mcp add kernelcad -- npx -y kernelcad mcp

Local CLI

To keep the kernelcad command on your PATH:

npm install --global kernelcad

For a self-contained install that includes Node.js, Linux and macOS users can run:

curl -fsSL https://kernelcad.com/install.sh | sh

On Windows PowerShell, run:

irm https://kernelcad.com/install.ps1 | iex

The direct installers download a platform archive, verify its SHA-256 checksum, and install it under the user's home directory. Pin a release with KERNELCAD_VERSION=vX.Y.Z on Linux/macOS or $env:KERNELCAD_VERSION='vX.Y.Z' in PowerShell. Builds are available for Linux x64/ARM64, macOS Intel/Apple Silicon, and Windows x64. Direct installs do not require a separately installed Node.js.

For regulated or air-gapped machines, kernelcad --sandbox … and kernelcad mcp --sandbox --workspace (or KERNELCAD_SANDBOX=1) keep all file access inside one workspace directory and refuse outbound network at runtime, including telemetry. See docs/sandbox.md.

Coding agents: one command

One command connects your agent to the hosted kernelCAD MCP server (https://mcp.kernelcad.com/mcp) and adds the kernelCAD skills. Nothing runs locally and no OpenCASCADE install is needed. Anonymous use works; sign in through your client's OAuth prompt for account features.

Agent	One-liner
Claude Code	`claude plugin install kernelcad --marketplace w1ne/kernelCAD-web`
Codex	`codex plugin marketplace add w1ne/kernelCAD-web && codex plugin add kernelcad@kernelcad`
Cursor	Add kernelCAD MCP to Cursor (MCP only)
Gemini CLI	`gemini extensions install https://github.com/w1ne/kernelCAD-web --consent --auto-update`
Grok Build	`grok plugin marketplace add w1ne/kernelCAD-web && grok plugin install kernelcad --trust`
VS Code / Copilot	`code --add-mcp '{"name":"kernelcad","type":"http","url":"https://mcp.kernelcad.com/mcp"}'`
Skills only (any agent)	`npx skills add w1ne/kernelCAD-web`

Inside Claude Code you can also type /plugin marketplace add w1ne/kernelCAD-web then /plugin install kernelcad@kernelcad. Restart the app after installing. Claude Desktop, ChatGPT, Windsurf, Cline, Zed, Continue, update, uninstall and the Cursor skills install are in docs/usage/agent-plugin-install.md.

Showcase

Each model below started from the plain-language prompt shown. An AI agent wrote it through kernelCAD's own authoring loop (CLI / MCP): it wrote .kcad.ts source, ran evaluate, rendered the seven-view inspection sheet, read the renders, fixed what was wrong, and repeated. None of these is a one-shot generation. Each folder in showcase/ holds the parametric source, the turntable GIF (kernelcad animate --turntable, publish look), and a short note on what to look at and which checks were run.

Model	Prompt	Params
Twisted hex vase	Hollow shell ~150 mm tall, tapers 70 → 50 mm, hex section twisting 120°, 2 mm wall, closed bottom	`height` `baseDia` `mouthDia` `twistDeg` `wall`
Knurled control knob	Ø40 × 22 mm, diamond-knurled grip, raised pointer, 6 mm D-shaft bore, M3 set-screw hole	`diameter` `height` `knurlDepth` `knurlTwistDeg` `knurlTeeth` `shaftDia` `dFlatDepth` `boreDepth` `skirtHeight`
Honeycomb bracket	Filleted L-bracket with a generative hex lattice	`thickness` `innerFillet` `cellSize` `web`
NACA 2412 wing	True airfoil from the NACA equations, tapered loft	`semiSpan` `rootChord` `tipChord` `leSweep` `dihedralRise` `washoutDeg`
Bevel gear drive	Meshing bevel gear pair at 90°	`gearDeg` `pinionTeeth` `gearTeeth`
Centrifugal impeller	7 swept backward-curved blades	`bladeCount` `wrapDeg` `backplateThickness` `boreDia` `keyWidth`
Planetary gear stage	Sun, planets, ring, carrier	`carrierDeg` `sunTeeth` `planetTeeth` `planetCount`
9-cylinder radial engine	Round crankcase, nine finned cylinders in a star, domed heads, prop hub	`cylinderCount` `barrelLength`

Some checks go past the picture:

Mechanisms that are checked, not just drawn. The planetary stage and the bevel drive are assemblies with revolute mates, gear ratios coupled from the tooth counts, and declared gear-pair transmissions. kernelCAD's mechanism-truth check (evaluate_script → mechanism: "real") turns each mechanism through its limits with the couplings applied and looks for overlapping teeth. kernelcad validate --include-interference reports both assemblies clean.
Manufacturing evidence. The honeycomb bracket declares an FDM print gate. kernelcad dfm passes it (thinnest wall 2.0 mm, no unsupported overhang), and kernelcad export step writes a B-rep whose holes read back with kernelcad inspect step.

Philosophy

Agent-First: The primary interface is .kcad.ts, CLI, and MCP. The UI reviews and steers generated designs.
Editable Source: Geometry is deterministic source code with explicit feature history, params, assemblies, and diagnostics.
Validation-Centered: Useful CAD output needs deterministic review for constraints, hardware fit, clearances, and exportability.
Workflow Over Primitives: Product progress is measured by intent-level workflows, not by copying every traditional CAD button.

Reference-parts accuracy

The headless OCCT gate checks 27 native .kcad.ts reference parts against analytic or recorded OCCT volume, surface-area, and bounding-box values. The current headline is 27/27 reference parts match; the expected-pass gate is 27/27, with the analytic inputs and tolerances listed in the scorecard. See the reference-parts scorecard and its local validation demo.

The SolidCraft oracle ledger vendors that project's public reference cases (Apache-2.0) and checks the kernelCAD parts that have been mod

只显示了开头部分；其余内容请在仓库中阅读