Npm Search Mcp

io.github.zcagPublished by GitHub account zcagv1.0.0Updated Oct 24, 2026

Search npm packages, get live registry data, and compare alternatives. No API key needed.

VerifiedSTDIODesktop onlyWeb Search & ScrapingDeveloper Tools

Overview

AI-generated overview

Lets an assistant search the npm registry, inspect individual packages, and compare alternatives using live data.

What you can do
It exposes three tools: search_packages finds npm packages by keyword and returns names, descriptions, download counts, and links; get_package returns details for one package such as version, dependencies, size, and weekly downloads; compare_packages puts 2 to 10 packages side by side with download stats, size, and quality scores. All data comes from the live npm registry rather than a cached snapshot.
When to use it
Useful when an assistant recommends or evaluates JavaScript dependencies and its built-in knowledge may be outdated, for example choosing between libraries or checking current versions and download trends before adding a package.
Requirements
Runs locally over stdio. The README offers npx from a GitHub repository, a Docker image, or a build from source, so Node.js with npx or Docker is needed. No API key, environment variables, or headers are declared.
Before you install
It only reads public npm registry data, so no credentials are requested and nothing is written. Package names and keywords are sent to the npm registry as search queries, and results reflect whatever the registry returns.

Installation

In SourceWeft

  1. Open Npm Search Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

npm-search-mcp

MCP server that searches npm packages and returns live registry data. No API key needed.

Tools

  • search_packages — Search npm for packages by keyword. Returns names, descriptions, download counts, and links.
  • get_package — Get detailed info about a specific package: version, dependencies, size, weekly downloads.
  • compare_packages — Compare 2-10 packages side by side with download stats, size, and quality scores.

Why?

AI coding assistants have stale knowledge about npm packages. This MCP server gives them live access to the npm registry — current versions, download trends, and package details updated in real-time.

Install

npx (easiest)

bash
npx -y github:zcag/npm-search-mcp

Claude Code config

json
{  "mcpServers": {    "npm-search": {      "command": "npx",      "args": ["-y", "github:zcag/npm-search-mcp"]    }  }}

Docker

bash
docker run -i ghcr.io/zcag/npm-search-mcp:1.0.0

From source

bash
git clone https://github.com/zcag/npm-search-mcp.gitcd npm-search-mcpnpm install && npm run buildnode dist/index.js

License

MIT

Source: README.md at commit 1622821

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts