Arc

by @hudsonkit · io.github.hudsonkit/arc

Author, validate, lay out, render, and diff architecture diagrams as code.

Runs on your machineLocal
WebsiteSource code
Category
Developer tools
Connection
Local (npm)
Tools
Shown after install
Status
Runs on your computer

Connect it to your AI

Claude Code (npm)

claude mcp add arc -- npx -y @hudsonkit/arc-mcp@0.14.1

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "arc": {
      "command": "npx",
      "args": [
        "-y",
        "@hudsonkit/arc-mcp@0.14.1"
      ]
    }
  }
}

Questions

What is the Arc MCP server?

Author, validate, lay out, render, and diff architecture diagrams as code. It is made by @hudsonkit and listed in the official MCP Registry as io.github.hudsonkit/arc. MCP (Model Context Protocol) is the open standard that lets AI apps like Claude, ChatGPT and Cursor use outside tools.

How do I add Arc to Claude?

In Claude Code, run: claude mcp add arc -- npx -y @hudsonkit/arc-mcp@0.14.1

How do I add Arc to ChatGPT?

ChatGPT only connects to remote MCP servers, and Arc runs on your own computer. Use it from Claude, Cursor or another app that runs local servers.

How do I add Arc to Cursor?

Open Cursor settings, go to MCP, choose "Add new MCP server" (or edit ~/.cursor/mcp.json) and add: { "mcpServers": { "arc": { "command": "npx", "args": [ "-y", "@hudsonkit/arc-mcp@0.14.1" ] } } }

Does Arc work right now?

It runs on your own computer, so it works once you install it. There is no remote server for us to check.

Is this your server? Get the badge for your README
chen.media/mcp badge

Markdown (GitHub README)

[![Listed on chen.media/mcp](https://chen.media/mcp/badge/github-hudsonkit-arc.svg)](https://chen.media/mcp/github-hudsonkit-arc)

HTML (switches to dark mode on its own)

<a href="https://chen.media/mcp/github-hudsonkit-arc"><picture><source media="(prefers-color-scheme: dark)" srcset="https://chen.media/mcp/badge/github-hudsonkit-arc.svg?theme=dark"><img src="https://chen.media/mcp/badge/github-hudsonkit-arc.svg" alt="Listed on chen.media/mcp" height="40"></picture></a>

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