Is io.github.mskry/diagrams-mcp-server safe to use?

io.github.mskry/diagrams-mcp-server 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.mskry/diagrams-mcp-server?

io.github.mskry/diagrams-mcp-server 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 AI clients work with io.github.mskry/diagrams-mcp-server?

io.github.mskry/diagrams-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is io.github.mskry/diagrams-mcp-server actively maintained?

io.github.mskry/diagrams-mcp-server is actively maintained — last commit was 28 days ago. It has 3 GitHub stars.

io.github.mskry/diagrams-mcp-server

@mermaid-js/mermaid-cli

Generate cloud architecture diagrams, flowcharts, and sequence diagrams.

3 483.6k/wk GitHub npm PyPI

No known CVEs

No license

Actively maintained

Last commit 28d ago

Works with most clients

Transport: stdio, sse, http

0 tools

Grade F

Edit this pageView history

Design

Step 1

Install in your client

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

Supported in Claude Desktopstdio, sse, http · Node 18+

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

{
  "mcpServers": {
    "diagrams-mcp": {
      "url": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

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-mskry-diagrams-mcp-server)](https://mcppedia.org/s/io-github-mskry-diagrams-mcp-server)

Read me

What io.github.mskry/diagrams-mcp-server does

MCP server for generating cloud architecture diagrams, flowcharts, sequence diagrams, and more — powered by three rendering engines: mingrammer/diagrams, Mermaid, and PlantUML.

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 '@mermaid-js/mermaid-cli' 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

51/100across 5 weighted dimensions

How we score →

0255075100

−49

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @mermaid-js/mermaid-cli against OSV.dev.

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.mskry/diagrams-mcp-server safe to use?: io.github.mskry/diagrams-mcp-server 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.mskry/diagrams-mcp-server?: io.github.mskry/diagrams-mcp-server 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 AI clients work with io.github.mskry/diagrams-mcp-server?: io.github.mskry/diagrams-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.mskry/diagrams-mcp-server actively maintained?: io.github.mskry/diagrams-mcp-server is actively maintained — last commit was 28 days ago. It has 3 GitHub stars.

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Edit this pageView history

Design

Step 1

Install in your client

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

Supported in Claude Desktopstdio, sse, http · Node 18+

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

{
  "mcpServers": {
    "diagrams-mcp": {
      "url": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

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-mskry-diagrams-mcp-server)](https://mcppedia.org/s/io-github-mskry-diagrams-mcp-server)

Read me

What io.github.mskry/diagrams-mcp-server does

MCP server for generating cloud architecture diagrams, flowcharts, sequence diagrams, and more — powered by three rendering engines: mingrammer/diagrams, Mermaid, and PlantUML.

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 '@mermaid-js/mermaid-cli' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

diagrams-mcp-server

MCP server for generating cloud architecture diagrams, flowcharts, sequence diagrams, and more — powered by three rendering engines: mingrammer/diagrams, Mermaid, and PlantUML.

Getting Started

Hosted (Recommended)

Connect to the public hosted server — no installation required. All rendering engines and dependencies are pre-installed.

Claude Desktop

Add to your claude_desktop_config.json (Settings → Developer → Edit Config):

{
  "mcpServers": {
    "diagrams-mcp": {
      "url": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

Claude Code (CLI)

Run:

claude mcp add diagrams-mcp https://diagrams-mcp-production.up.railway.app/mcp

Or add to your .mcp.json:

{
  "mcpServers": {
    "diagrams-mcp": {
      "url": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

Cursor

Add to your .cursor/mcp.json:

{
  "mcpServers": {
    "diagrams-mcp": {
      "url": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

Windsurf

Add to your ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "diagrams-mcp": {
      "serverUrl": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

VS Code

Add to your .vscode/mcp.json:

{
  "servers": {
    "diagrams-mcp": {
      "type": "http",
      "url": "https://diagrams-mcp-production.up.railway.app/mcp"
    }
  }
}

Local Installation

Prerequisites

Graphviz is required for the default local/in-process rendering mode. Mermaid CLI and PlantUML are optional — install them only if you need those specific rendering engines locally.

Dependency	Required for	Install
Graphviz	`render_diagram` (cloud architecture)	`brew install graphviz`
Mermaid CLI	`render_mermaid` (flowcharts, sequence, etc.)	`npm install -g @mermaid-js/mermaid-cli`
Java + PlantUML	`render_plantuml` (UML diagrams)	`brew install openjdk` + download plantuml.jar

Note: The hosted server runs as a slim MCP facade plus a separate renderer service, and has all render dependencies pre-installed in the renderer. Local prerequisites only apply if you're running in-process rendering yourself.

Install the server

Via uvx (recommended):

uvx diagrams-mcp-server

Via pip:

pip install diagrams-mcp-server

From source:

pip install git+https://github.com/ByteOverDev/diagrams-mcp.git

Configure your MCP client

Claude Desktop

Add to your claude_desktop_config.json (Settings → Developer → Edit Config):

uvx (recommended):

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

pip:

{
  "mcpServers": {
    "diagrams-mcp": {
    

... [View full README on GitHub](https://github.com/ByteOverDev/diagrams-mcp#readme)

Loading README…

Scored, not listed

Why this score

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

Score breakdown

51/100across 5 weighted dimensions

How we score →

0255075100

−49

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @mermaid-js/mermaid-cli against OSV.dev.

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.mskry/diagrams-mcp-server safe to use?: io.github.mskry/diagrams-mcp-server 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.mskry/diagrams-mcp-server?: io.github.mskry/diagrams-mcp-server 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 AI clients work with io.github.mskry/diagrams-mcp-server?: io.github.mskry/diagrams-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.mskry/diagrams-mcp-server actively maintained?: io.github.mskry/diagrams-mcp-server is actively maintained — last commit was 28 days ago. It has 3 GitHub stars.

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MCP Security Weekly

Get CVE alerts and security updates for io.github.mskry/diagrams-mcp-server 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?