@pipeworx/packagephobia

Packagephobia MCP — measures the size an npm package takes up on disk after install (publish-size + install-size including all transitive deps). Complements bundlephobia, which measures runtime bundle size. Keyless.

Part of Pipeworx — an MCP gateway connecting AI agents to 1394+ live data sources.

Tools

• size(package, version?) — install + publish size for an npm package

Related MCP server: mcp-server-npm-plus

Why bother?

Bundle size ≠ install size. A package can be tiny at runtime but pull in heavy dev/transitive deps that slow CI cache hydration. packagephobia measures the full node_modules footprint.

Data source

https://packagephobia.com/v2/api.json?p=<pkg>[@version]

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "packagephobia": {
      "url": "https://gateway.pipeworx.io/packagephobia/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1394+ data sources:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about Packagephobia data" })

The gateway picks the right tool and fills the arguments automatically.

More

• Docs and guides

• pipeworx.io

License

MIT