Is io.github.ezrabrilliant/staruml-mcp safe to use?

io.github.ezrabrilliant/staruml-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.ezrabrilliant/staruml-mcp?

io.github.ezrabrilliant/staruml-mcp can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with io.github.ezrabrilliant/staruml-mcp?

io.github.ezrabrilliant/staruml-mcp is compatible with Claude Desktop, Cursor, Claude Code, and most MCP clients that support stdio transport. It uses stdio transport.

io.github.ezrabrilliant/staruml-mcp

MCP server for StarUML — generate UML diagrams from AI agents via stdio or HTTP.

0 tools GitHub

No known CVEs

No license

Maintenance unknown

No commit data

Untested

Transport: stdio

0 tools

Grade F

AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Untested on Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-ezrabrilliant-staruml-mcp": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-ezrabrilliant-staruml-mcp)](https://mcppedia.org/s/io-github-ezrabrilliant-staruml-mcp)

Read me

What io.github.ezrabrilliant/staruml-mcp does

MCP server for StarUML — generate UML diagrams from AI agents via stdio or HTTP.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

15/100across 5 weighted dimensions

How we score →

0255075100

−85

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Help improve this page

This server is missing a description. Tools and install config are also missing.If you've used it, help the community.

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.ezrabrilliant/staruml-mcp safe to use?: io.github.ezrabrilliant/staruml-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.ezrabrilliant/staruml-mcp?: io.github.ezrabrilliant/staruml-mcp can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.ezrabrilliant/staruml-mcp?: io.github.ezrabrilliant/staruml-mcp is compatible with Claude Desktop, Cursor, Claude Code, and most MCP clients that support stdio transport. It uses stdio transport.

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Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Untested on Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-ezrabrilliant-staruml-mcp": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-ezrabrilliant-staruml-mcp)](https://mcppedia.org/s/io-github-ezrabrilliant-staruml-mcp)

Read me

What io.github.ezrabrilliant/staruml-mcp does

MCP server for StarUML — generate UML diagrams from AI agents via stdio or HTTP.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

staruml-mcp

Model Context Protocol (MCP) server for StarUML. Lets AI agents (Claude Code, Cursor, VS Code Copilot, Codex) drive StarUML programmatically — generate UML diagrams from Mermaid, execute any built-in command, CRUD elements, save projects, and more.

How it fits together

  AI Agent  ──MCP──►  staruml-mcp (this package)  ──HTTP──►  StarUML
                                                  :58321 (built-in, 4 tools)
                                                  :58322 (extension, 15 tools)

Package	What it is	Where it runs
`staruml-mcp` (this repo)	MCP server for AI agents	your machine via `npx -y staruml-mcp`
`staruml-mcp-extension`	StarUML plugin adding 15 HTTP endpoints	inside StarUML (install once via Extension Manager)

Using only Mermaid-based diagram tools? Install staruml-mcp only. The 4 built-in tools work.
Want the full 19 tools (project save/open, element CRUD, execute any StarUML command)? Install both.

Prerequisites

StarUML v7.0.0+ with API Server enabled (see below)
Node.js 20+ on the machine running the AI agent
(Optional) staruml-mcp-extension installed in StarUML — required for 15 of the 19 tools

Enable StarUML API Server

Edit settings.json at:

Windows: %APPDATA%\StarUML\settings.json
macOS: ~/Library/Application Support/StarUML/settings.json
Linux: ~/.config/StarUML/settings.json

Add or update:

{
  "apiServer": true,
  "apiServerPort": 58321
}

Restart StarUML.

Verify:

curl http://localhost:58321/
# → "Hello from StarUML API Server!"

Install & Use

Claude Code (recommended — HTTP transport)

Start the server in a terminal:

npx -y staruml-mcp --transport http
# listens on http://localhost:58323/mcp by default

claude mcp add --transport http staruml http://localhost:58323/mcp

Port 58323 is the canonical HTTP port, chosen to sit alongside StarUML's built-in API (58321) and staruml-mcp-extension (58322). Override with --port <n> if needed.

Restart Claude Code. Ask:

"What StarUML tools do you have?"

Claude Desktop (stdio transport)

Edit %APPDATA%\Claude\claude_desktop_config.json (Windows) or ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "staruml": {
      "command": "npx",
      "args": ["-y", "staruml-mcp"]
    }
  }
}

Restart Claude Desktop.

Cursor / VS Code Copilot / Codex CLI

Point your MCP client at npx -y staruml-mcp (stdio) or http://localhost:58323/mcp (HTTP).

CLI

staruml-mcp [options]

  -t, --transport <type>   stdio | http              (default: stdio)
  -p, --port <number>      HTTP listen port          (default: 58323)
      --api-port <number>  StarUML built-in API port (default: 58321)
      --ext-port <number>  staruml-mcp-extension port(default: 58322)
      --api-host <url>     StarUML API host prefix   (default: http://localhost)
  -V, --version            Print version
  -h, --help               Show help

Tools Exposed

Built-in (always available, port 58321)

Tool	Description
`generate_diagram`	Generate a UML diagram from Mermaid code.
`get_all_diagra

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

15/100across 5 weighted dimensions

How we score →

0255075100

−85

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Help improve this page

This server is missing a description. Tools and install config are also missing.If you've used it, help the community.

Add information

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.ezrabrilliant/staruml-mcp safe to use?: io.github.ezrabrilliant/staruml-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.ezrabrilliant/staruml-mcp?: io.github.ezrabrilliant/staruml-mcp can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.ezrabrilliant/staruml-mcp?: io.github.ezrabrilliant/staruml-mcp is compatible with Claude Desktop, Cursor, Claude Code, and most MCP clients that support stdio transport. It uses stdio transport.