npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@weiseer/mcp-doctor

v0.1.2

Published

Install-time trust gate for MCP servers — PASS/WARN/BLOCK + cited evidence + GitHub Action support.

Downloads

67

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

weiseerweiseer

Keywords

mcpmodel-context-protocolsecuritytrustsupply-chainvulnerabilityauditai-agentweiseer

Readme

@weiseer/mcp-doctor

Install-time trust gate for MCP servers. PASS / WARN / BLOCK + cited evidence.

Part of weiseer. Probe P-010.

What it does

Scans MCP server packages (or your entire claude_desktop_config.json / cline_config.json) and tells you which ones to trust before you install or connect to them.

Verdict is one of:

  • PASS — no significant supply-chain or vulnerability signals
  • WARN — material concerns; review before installing
  • BLOCK — critical issue (known CVE, typosquat, hardcoded credentials, etc.)

All scoring is open-source and rule-based — see rubric.yaml. You can argue with our methodology; we'd rather you do that than trust a black-box ML model.

Install

npm install -g @weiseer/mcp-doctor

Or run on-demand:

npx @weiseer/mcp-doctor @modelcontextprotocol/server-github

Common uses

1. Check a single package before installing:

npx @weiseer/mcp-doctor @some/mcp-server

2. Audit your existing MCP config:

npx @weiseer/mcp-doctor --config ~/Library/Application\ Support/Claude/claude_desktop_config.json

3. CI integration (block bad MCPs in PR):

- uses: weiseer/mcp-doctor-action@v1
  with:
    packages: '@x/server-foo @y/server-bar'

4. README trust badge:

![MCP Trust](https://weiseer.com/badge/@x/server-foo)

What gets scored

  • Supply chain hygiene — postinstall scripts, unpinned deps, missing provenance, repo URL integrity
  • Maintainer health — release cadence, archive status, bus factor, GitHub last-push age
  • Known vulnerabilities — direct + transitive CVE via OSV.dev
  • MCP-specific risk — typosquat against official servers, hardcoded credentials, capability misdeclaration

Full rubric: rubric.yaml. Open-source by design.

Why this exists

The MCP ecosystem has a security crisis. MCPwn (CVE-2026-33032, CVSS 9.8) exposed 2,600+ instances. The Shai-Hulud npm worm stole MCP auth tokens from 172 packages. MCPSafe found high-severity bugs in official MCP servers from Atlassian, GitHub, Cloudflare, Microsoft. Bumblebee shipped from Perplexity in May 2026 specifically because supply-chain scanning was missing for MCP.

We agree the problem is real and decided to ship a developer-friendly install gate that fits the existing MCP workflow rather than reinventing it.

License

Apache-2.0.

Related