Is io.github.OliverGrabner/composer safe to use?

io.github.OliverGrabner/composer 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.OliverGrabner/composer?

io.github.OliverGrabner/composer 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.OliverGrabner/composer?

io.github.OliverGrabner/composer is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is io.github.OliverGrabner/composer actively maintained?

io.github.OliverGrabner/composer is recently maintained — last commit was 49 days ago. It has 3 GitHub stars.

io.github.OliverGrabner/composer

@usecomposer/mcp

Give your AI coding agent an architecture canvas to design and evolve diagrams.

3 25/wk 0 tools GitHub npm

No known CVEs

No license

Maintained

Last commit 49d ago

Works with most clients

Transport: stdio, http

0 tools

Grade F

Edit this pageView history

Design Developer Tools

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": {
    "composer": {
      "url": "https://mcp.usecomposer.com",
      "type": "http"
    }
  }
}

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-olivergrabner-composer)](https://mcppedia.org/s/io-github-olivergrabner-composer)

Read me

What io.github.OliverGrabner/composer does

Give your AI coding agent an architecture canvas. Design, visualize, and evolve software architecture diagrams - right from your IDE.

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 '@usecomposer/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

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 @usecomposer/mcp 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.OliverGrabner/composer safe to use?: io.github.OliverGrabner/composer 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.OliverGrabner/composer?: io.github.OliverGrabner/composer 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.OliverGrabner/composer?: io.github.OliverGrabner/composer is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.OliverGrabner/composer actively maintained?: io.github.OliverGrabner/composer is recently maintained — last commit was 49 days ago. It has 3 GitHub stars.

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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

Design Developer Tools

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": {
    "composer": {
      "url": "https://mcp.usecomposer.com",
      "type": "http"
    }
  }
}

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-olivergrabner-composer)](https://mcppedia.org/s/io-github-olivergrabner-composer)

Read me

What io.github.OliverGrabner/composer does

Give your AI coding agent an architecture canvas. Design, visualize, and evolve software architecture diagrams - right from your IDE.

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 '@usecomposer/mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

Composer MCP Server

Give your AI coding agent an architecture canvas.
Design, visualize, and evolve software architecture diagrams - right from your IDE.

Composer is a visual system design tool that lets AI coding agents create and modify interactive architecture diagrams through MCP (Model Context Protocol). Your agent gets tools to add services, databases, queues, and connections, and you get a live canvas at usecomposer.com that updates in real-time.

Your IDE  <-->  MCP Server (this package)  <-->  Composer API  <-->  Your Diagram

Getting Started

Connect your IDE

Claude Code:

claude mcp add --transport http composer https://mcp.usecomposer.com

Cursor — create .cursor/mcp.json in your project root:

{
  "mcpServers": {
    "composer": {
      "type": "http",
      "url": "https://mcp.usecomposer.com"
    }
  }
}

Your browser will open for authorization on first use.

Claude Code

claude mcp add --transport http composer https://mcp.usecomposer.com

Cursor

Create .cursor/mcp.json in your project root:

{
  "mcpServers": {
    "composer": {
      "type": "http",
      "url": "https://mcp.usecomposer.com"
    }
  }
}

Codex

codex mcp add composer -- npx -y @usecomposer/mcp --stdio

VS Code (Copilot Chat)

Create .vscode/mcp.json in your project root:

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

VS Code (Cline)

Open Cline sidebar > Settings (gear icon) > MCP Servers > Add Remote Server:

{
  "mcpServers": {
    "composer": {
      "type": "http",
      "url": "https://mcp.usecomposer.com"
    }
  }
}

VS Code (Continue)

Add to .continue/config.yaml:

mcpServers:
  - name: composer
    url: https://mcp.usecomposer.com

Windsurf

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

{
  "mcpServers": {
    "composer": {
      "serverUrl": "https://mcp.usecomposer.com"
    }
  }
}

Note: Windsurf uses "serverUrl" instead of "url".

OpenCode

Create opencode.json in your project root:

{
  "mcp": {
    "composer": {
      "type": "remote",
      "url": "https://mcp.usecomposer.com"
    }
  }
}

Tools

Diagram Management

Tool	Description
`list_diagrams`	List all your diagrams. Call this first to find which diagram to work on
`create_diagram`	Create a new diagram and auto-select it for this session
`select_diagram`	Select which diagram to work on for this session
`rename_diagram`	Rename the currently selected diagram

Note: Call list_diagrams then select_diagram (o

... 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

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 @usecomposer/mcp 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.OliverGrabner/composer safe to use?: io.github.OliverGrabner/composer 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.OliverGrabner/composer?: io.github.OliverGrabner/composer 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.OliverGrabner/composer?: io.github.OliverGrabner/composer is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.OliverGrabner/composer actively maintained?: io.github.OliverGrabner/composer is recently maintained — last commit was 49 days ago. It has 3 GitHub stars.

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View all →

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Get CVE alerts and security updates for io.github.OliverGrabner/composer and similar servers.

Community