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PopNx MCPMCP servers for people who use AI · explained in plain words

Npm Plus

by ofershapversion 1.0.1i★ –iRuns on your computer
Registry nameio.github.ofershap/npm-plus

Install

Overview

Description from the maker (original English)

npm MCP — search packages, bundle sizes, vulnerabilities, compare downloads.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • The registry lists no key to fill in.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "npm-plus": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-npm-plus"
      ]
    }
  }
}

Run this in your terminal

claude mcp add npm-plus -- npx -y mcp-server-npm-plus

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "npm-plus": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-npm-plus"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "npm-plus": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-npm-plus"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account ofershap, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7240 servers in this category
  • Published to the registry more recently than 5% of the other 7240 servers in this category
  • Basic checks equal to or better than 100% of the other 7240 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Npm Plus safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated 3 days ago
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 44 days ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

mcp-server-npm-plus

npm package research from your AI assistant. Search packages, check bundle sizes, scan for vulnerabilities, compare download counts, and inspect dependency trees. No API keys needed.

npx mcp-server-npm-plus

Works with Claude Desktop, Cursor, VS Code Copilot, and any MCP client. Uses public npm registry APIs.

Demo built with remotion-readme-kit

Why

Choosing between npm packages usually means opening a bunch of browser tabs: npm for package info, Bundlephobia for size, Snyk for vulnerabilities, npm trends for download comparisons. This server puts all of that in one place, accessible through your AI assistant. Ask "compare zustand vs jotai vs valtio" and get download numbers, bundle sizes, and dependency counts side by side. Ask "are there any known vulnerabilities in express?" and get the answer without leaving your editor. It uses only public npm APIs, so there's nothing to sign up for.

Tools

ToolDescription
searchSearch npm packages by query
package_infoGet detailed info: description, license, repo, dependencies
downloadsGet download stats for a package
compare_downloadsCompare download counts across multiple packages
bundle_sizeGet bundle size (minified + gzip) via Bundlephobia
vulnerabilitiesGet vulnerability info and advisory links
dependency_treeShow direct dependencies as a tree
download_trendsDaily breakdown with sparkline

Quick Start

Cursor

Add to .cursor/mcp.json:

{

"mcpServers": { "npm-plus": { "command": "npx", "args": ["mcp-server-npm-plus"] } } }

Claude Desktop

Add to claude_desktop_config.json:

{

"mcpServers": { "npm-plus": { "command": "npx", "args": ["mcp-server-npm-plus"] } } }

VS Code

Use the MCP extension and configure the server with npx mcp-server-npm-plus.

Example Prompts

  • "Search npm for React state management libraries"
  • "What's the bundle size of lodash?"
  • "Compare downloads of zustand vs jotai vs valtio"
  • "Check for vulnerabilities in express"
  • "Show me the dependency tree for next"
  • "What are the download trends for typescript this month?"

Development

npm install

npm run typecheck npm run build npm test npm run lint npm run format

See also

More MCP servers and developer tools on my portfolio.

Author


README built with README Builder

License

MIT © 2026 Ofer Shapira

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