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Package Registry MCP Server

@Artmann

Repository

Basic information

Category

Other

License

MIT

Transports

stdio

Author

Artmann

Submitted by

Christoffer Artmann

About Package Registry MCP Server

MCP server for searching and getting up-to-date information about NPM, Cargo, PyPi, and NuGet packages.

#packges#npm#nuget#pypi

Package Registry MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "package-registry": {
      "command": "npx",
      "args": [
        "package-registry-mcp"
      ]
    }
  }
}

Package Registry MCP Server tools

16

Get detailed information about a specific Cargo package

Search the Cargo registry for packages

List all versions of a specific Cargo package

Get detailed information about a specific GitHub Security Advisory by its GHSA ID (e.g., GHSA-grv7-fg5c-xmjg).

Search the GitHub Security Advisory Database for vulnerabilities. Filter by ecosystem (npm, pip, maven, etc.), severity, type, or CVE ID.

Get all security advisories affecting a specific package. Use this to check if a package like "braces" or "lodash" has known vulnerabilities.

Get detailed information about a specific Go module/package

List all versions of a specific Go module/package

Get detailed information about a specific NPM package

Search the NPM registry for packages

List all versions of a specific NPM package

Get detailed information about a specific NuGet package

Search the NuGet registry for packages

List all versions of a specific NuGet package

Get detailed information about a specific PyPI package

List all versions of a specific PyPI package

Overview

What is Package Registry Mcp Server?

A Model Context Protocol (MCP) server that enables AI assistants (Claude, Cursor, Copilot, etc.) to search package registries and retrieve up-to-date package information. It supports npm, crates.io, NuGet, PyPI, Go modules, and GitHub Security Advisories.

How to use Package Registry Mcp Server?

Install globally with npm install -g package-registry-mcp or run directly with npx package-registry-mcp. Configure as an MCP server in Cursor Settings, Claude Code via claude mcp add, or add to claude_desktop_config.json with command npx and args ["package-registry-mcp"].

Key features of Package Registry Mcp Server

  • Search and get details for multiple package registries.
  • Retrieve latest version and version history for any package.
  • Search GitHub Security Advisories for known vulnerabilities.
  • Get advisory details and per-package vulnerability reports.
  • Real-time data fetched directly from official registries.

Use cases of Package Registry Mcp Server

  • Ask an AI assistant to find the latest version of a dependency.
  • Check a package for known security vulnerabilities before adding it.
  • Compare versions and metadata across npm, crates.io, and NuGet.
  • Retrieve dependency lists and maintainer info for audit purposes.

Frequently asked questions

1

What runtime is required?

Node.js 18+ or Bun runtime, plus an internet connection for registry access.

2

Can I use it without installing?

Yes. Run with `npx package-registry-mcp` — no global installation needed.

3

Does it support searching all registries?

No. PyPI and Go module search are not supported because those registries lack a JSON search API; only detail and version listing are available.

4

How do I configure it with Claude Desktop?

Add the server to `claude_desktop_config.json` with `"command": "npx"` and `"args": ["package-registry-mcp"]`. The config file location depends on your OS.

5

What data does it return?

Package metadata (name, description, version, license), dependencies, download statistics, maintainer info, and last 50 versions. Advisories include GHSA ID, CVE ID, severity, CVSS score, affected ranges, and patched versions.

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