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 supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.github.ezrabrilliant/staruml-mcp do?

io.github.ezrabrilliant/staruml-mcp provides 19 tools: generate_diagram, get_all_diagrams_info, get_current_diagram_info, get_diagram_image_by_id, get_all_commands and 14 more. See the full tools list on the server page for descriptions and parameters.

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

io.github.ezrabrilliant/staruml-mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is io.github.ezrabrilliant/staruml-mcp actively maintained?

io.github.ezrabrilliant/staruml-mcp is recently maintained — last commit was 74 days ago.

io.github.ezrabrilliant/staruml-mcp

staruml-mcp

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

82/wk 19 tools GitHub npm

No known CVEs

No license

Maintained

Last commit 74d ago

Works with most clients

Transport: stdio, http

19 tools · ~781 tok

Grade B · 0.4% of 200K ctx

Edit this pageView history

Developer Tools Design

Step 1

Install in your client

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

Supported in Claude Desktopstdio, http · Node 18+

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

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

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

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.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'staruml-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

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

Score breakdown

74/100across 5 weighted dimensions

How we score →

0255075100

−26

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked staruml-mcp against OSV.dev.

Inventory

Tools (19)

Click any tool to inspect its schema.

~781 tokens total

Inventory

Prompts (4)

Create ER diagram

Create an ER diagram in StarUML for a POS database: users, menus, transactions with relationships.

Generate sequence diagram

Generate a sequence diagram for JWT login: frontend → /api/auth/login → AuthService → DB → JWT response.

Show current diagram

Show me the current diagram in StarUML.

Export diagram as image

Export diagram with ID as an image.

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 supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.ezrabrilliant/staruml-mcp do?: io.github.ezrabrilliant/staruml-mcp provides 19 tools: generate_diagram, get_all_diagrams_info, get_current_diagram_info, get_diagram_image_by_id, get_all_commands and 14 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.ezrabrilliant/staruml-mcp?: io.github.ezrabrilliant/staruml-mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.ezrabrilliant/staruml-mcp actively maintained?: io.github.ezrabrilliant/staruml-mcp is recently maintained — last commit was 74 days ago.

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MCP Security Weekly

Get CVE alerts and security updates for io.github.ezrabrilliant/staruml-mcp and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

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

Edit this pageView history

Developer Tools Design

Step 1

Install in your client

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

Supported in Claude Desktopstdio, http · Node 18+

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

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

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

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'staruml-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

staruml-mcp

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

74/100across 5 weighted dimensions

How we score →

0255075100

−26

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked staruml-mcp against OSV.dev.

Inventory

Tools (19)

Click any tool to inspect its schema.

~781 tokens total

Inventory

Prompts (4)

Create ER diagram

Create an ER diagram in StarUML for a POS database: users, menus, transactions with relationships.

Generate sequence diagram

Generate a sequence diagram for JWT login: frontend → /api/auth/login → AuthService → DB → JWT response.

Show current diagram

Show me the current diagram in StarUML.

Export diagram as image

Export diagram with ID as an image.

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 supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.ezrabrilliant/staruml-mcp do?: io.github.ezrabrilliant/staruml-mcp provides 19 tools: generate_diagram, get_all_diagrams_info, get_current_diagram_info, get_diagram_image_by_id, get_all_commands and 14 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.ezrabrilliant/staruml-mcp?: io.github.ezrabrilliant/staruml-mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.ezrabrilliant/staruml-mcp actively maintained?: io.github.ezrabrilliant/staruml-mcp is recently maintained — last commit was 74 days ago.