Is Music Composer Webmcp safe to use?

Music Composer Webmcp 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 Music Composer Webmcp?

Music Composer Webmcp 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 Music Composer Webmcp?

Music Composer Webmcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is Music Composer Webmcp actively maintained?

Music Composer Webmcp is recently maintained — last commit was 55 days ago. It has 43 GitHub stars.

Music Composer Webmcp

Name: Music Composer Webmcp
Author: Leanmcp-Community

npm · by Leanmcp-Community

This WebMCP Music Composer project is a functional demonstration of the WebMCP Protocol, illustrating how AI agents can interact with local browser contexts (tools) to achieve complex workflows autonomously.

43 12.8M/wk 0 tools GitHub npm

No known CVEs

No license

Maintained

Last commit 55d ago

Works with most clients

Transport: stdio

0 tools

Grade F

Edit this pageView history

AI / ML Entertainment

Step 1

Install in your client

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

Supported in Claude Desktopstdio · Node 18+

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

{
  "mcpServers": {
    "music-composer-webmcp": {
      "args": [
        "-y",
        "npm"
      ],
      "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/music-composer-webmcp)](https://mcppedia.org/s/music-composer-webmcp)

Read me

What Music Composer Webmcp does

This project is a functional demonstration of the WebMCP Protocol, illustrating how AI agents can interact with local browser contexts (tools) to achieve complex workflows autonomously.

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 'npm' 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

56/100across 5 weighted dimensions

How we score →

0255075100

−44

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

8 fixed

CVE-2022-29244low · fixedCVSS 3.1

Packing does not respect root-level ignore files in workspaces

### Impact `npm pack` ignores root-level `.gitignore` & `.npmignore` file exclusion directives when run in a workspace or with a workspace flag (ie. `--workspaces`, `--workspace=<name>`). Anyone who has run `npm pack` or `npm publish` with workspaces, as of [v7.9.0](https://github.com/npm/cli/releases/tag/v7.9.0) & [v7.13.0](https://github.com/npm/cli/releases/tag/v7.13.0) respectively, may be affected and have published files into the npm registry they did not intend to include. ### Patch - Up

Affected: >= 7.9.0Fixed in 8.11.0source →

CVE-2018-7408low · fixedCVSS 3

Incorrect Permission Assignment for Critical Resource in NPM

An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.

Affected: >= 0Fixed in 5.7.1source →

CVE-2013-4116info · fixed

Local Privilege Escalation in npm

Affected versions of `npm` use predictable temporary file names during archive unpacking. If an attacker can create a symbolic link at the location of one of these temporary file names, the attacker can arbitrarily write to any file that the user which owns the `npm` process has permission to write to, potentially resulting in local privilege escalation. ## Recommendation Update to version 1.3.3 or later.

Affected: >= 0Fixed in 1.3.3source →

CVE-2020-15095low · fixedCVSS 3.1

npm CLI exposing sensitive information through logs

Versions of the npm CLI prior to 6.14.6 are vulnerable to an information exposure vulnerability through log files. The CLI supports URLs like `<protocol>://[<user>[:<password>]@]<hostname>[:<port>][:][/]<path>`. The password value is not redacted and is printed to stdout and also to any generated log files.

Affected: >= 0Fixed in 6.14.6source →

CVE-2019-16777low · fixedCVSS 3.1

npm Vulnerable to Global node_modules Binary Overwrite

Versions of the npm CLI prior to 6.13.4 are vulnerable to a Global node_modules Binary Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a `serve` binary, any subsequent installs of packages that also create a `serve` binary would overwrite the first binary. This will not overwrite system binaries but only binaries put into the global node_modules directory. This b

Affected: >= 0Fixed in 6.13.4source →

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 Music Composer Webmcp safe to use?: Music Composer Webmcp 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 Music Composer Webmcp?: Music Composer Webmcp 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 Music Composer Webmcp?: Music Composer Webmcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is Music Composer Webmcp actively maintained?: Music Composer Webmcp is recently maintained — last commit was 55 days ago. It has 43 GitHub stars.

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MCP Security Weekly

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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

AI / ML Entertainment

Step 1

Install in your client

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

Supported in Claude Desktopstdio · Node 18+

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

{
  "mcpServers": {
    "music-composer-webmcp": {
      "args": [
        "-y",
        "npm"
      ],
      "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/music-composer-webmcp)](https://mcppedia.org/s/music-composer-webmcp)

Read me

What Music Composer Webmcp does

This project is a functional demonstration of the WebMCP Protocol, illustrating how AI agents can interact with local browser contexts (tools) to achieve complex workflows autonomously.

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 'npm' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

WebMCP Demo: Music Composer

This project is a functional demonstration of the WebMCP Protocol, illustrating how AI agents can interact with local browser contexts (tools) to achieve complex workflows autonomously.

You can try the live demo for free at: https://music.leanmcp.live
(Note: You must open this link in Google Chrome Canary and enable the WebMCP flag in chrome://flags for the WebMCP features to work best, otherwise, it'll use a polyfill.)

What is WebMCP?

WebMCP (Web Model Context Protocol) is PENDING standard allowing web applications to register "tools" directly with the browser or a connected AI agent. By natively exposing the application's capabilities, an AI can introspect the available tools and intelligently execute tasks. In this specific demo, the agent orchestrates a web-based audio sequencer using nothing but WebMCP tool calls.

To read the official specification, visit webmcp.link.

Local Setup

To run this protocol demonstration locally, you will need a LeanMCP API key and Google Chrome Canary.

1. Requirements

Node.js installed on your machine.
Google Chrome Canary. Experimental WebMCP features are best tested on the bleeding-edge browser.
A LeanMCP API Token. Get yours from the LeanMCP API Keys dashboard.
Adequate Credits on your LeanMCP account. Manage your billing here.

2. Environment Variables

Navigate to this directory (webmcp-react). Copy the example environment file to configure your credentials:

cp .env.example .env

Edit .env and assign your actual API token:

VITE_GATEWAY_API_KEY=your_actual_leanmcp_api_token_here

3. Installation & Running

Install the required npm dependencies and start the Vite development server:

npm install
npm run dev

4. Experiencing the Protocol

Open Google Chrome Canary.
Navigate to chrome://flags and enable the WebMCP experimental feature. Relaunch the browser if prompted.
Navigate to the localhost URL provided by the Vite server (typically http://localhost:5173).
Use the interface to initiate an agent run. You'll observe the underlying WebMCP runtime expose the UI's capabilities as tools to an LLM, which autonomously handles the workflow and invokes operations back onto the page.

Loading README…

Scored, not listed

Why this score

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

Score breakdown

56/100across 5 weighted dimensions

How we score →

0255075100

−44

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

8 fixed

CVE-2022-29244low · fixedCVSS 3.1

Packing does not respect root-level ignore files in workspaces

Affected: >= 7.9.0Fixed in 8.11.0source →

CVE-2018-7408low · fixedCVSS 3

Incorrect Permission Assignment for Critical Resource in NPM

Affected: >= 0Fixed in 5.7.1source →

CVE-2013-4116info · fixed

Local Privilege Escalation in npm

Affected: >= 0Fixed in 1.3.3source →

CVE-2020-15095low · fixedCVSS 3.1

npm CLI exposing sensitive information through logs

Affected: >= 0Fixed in 6.14.6source →

CVE-2019-16777low · fixedCVSS 3.1

npm Vulnerable to Global node_modules Binary Overwrite

Affected: >= 0Fixed in 6.13.4source →

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 Music Composer Webmcp safe to use?: Music Composer Webmcp 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 Music Composer Webmcp?: Music Composer Webmcp 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 Music Composer Webmcp?: Music Composer Webmcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is Music Composer Webmcp actively maintained?: Music Composer Webmcp is recently maintained — last commit was 55 days ago. It has 43 GitHub stars.