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

@jamesmddoyle/phantom

v0.2.1

Published

API mocker and traffic inspector with a built-in dashboard.

Downloads

462

Readme

PHANTOM

npm version

Phantom is a low-level API mocker and traffic inspector. Built using raw Node.js TCP sockets. It includes a built in dashboard for real-time monitoring and route configuration.

Features

  • Traffic Inspector: View request and response headers, bodies, and latency in a real-time feed.
  • Chaos Engine: Injected artificial delays and random error rates on a per-route basis.
  • Deep Search: Filter request history by path, method, or content within the body.
  • Self-Contained: The server serves both the mock API and the static dashboard UI on a single port.
  • Binary Support: Capability to handle and serve binary assets like images.

Installation

Install Phantom globally via npm:

npm i -g @jamesmddoyle/phantom

Usage

Run phantom init to create a starter routes.json file in your current directory.

To start the server, run phantom in any directory. It will look for a routes.json file by default.

CLI Options

  • --port: The port to run the server on (default: 3001).
  • --config: Custom path to a routes JSON file.
  • --delay: Global latency override in milliseconds.
  • --error-rate: Global failure rate override (0.0 to 1.0).
  • --verbose: Show all system logs and debug information.
  • --quiet: Hide all non-error logs (shows only errors).

Route Configuration

Example routes.json structure:

[
  {
    "path": "/api/users",
    "method": "GET",
    "status": 200,
    "body": { "id": 1, "name": "Phantom User" },
    "enabled": true,
    "delay": 500,
    "errorRate": 0.1
  }
]

Commands

  • make dev: Run the dashboard and server in development mode.
  • make build: Build both projects for production.
  • make run: Run the production build locally.
  • make test: Run server-side tests.