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

@stopreg/stopreg

v2.1.0

Published

The official Node.js SDK for StopReg.

Readme

StopReg Node.js SDK

npm version License: MIT

The official Node.js SDK for StopReg, providing advanced email and domain verification to protect your application from fraudulent registrations and disposable email addresses.

Features

  • Email Verification: Check if an email is disposable, role-based, or blocked.
  • Domain Verification: Verify domains for MX records and provider reputation.
  • MX Record Lookup: Automated mail server verification.
  • Provider Reputation: Identify high-risk providers and disposable email services.
  • TypeScript Support: Fully typed for a better developer experience.

Installation

npm install @stopreg/stopreg
# or
pnpm add @stopreg/stopreg
# or
yarn add @stopreg/stopreg

Quick Start

Initialize the client with your StopReg API token (get one at stopreg.com/dashboard).

import { StopReg } from '@stopreg/stopreg';

const stopreg = new StopReg({
  apiToken: 'your_api_token_here'
});

async function runCheck() {
  // 1. Verify an email address
  const emailResult = await stopreg.verification.checkEmail('[email protected]');
  console.log('Is Disposable:', emailResult.data.classification.is_disposable);

  // 2. Verify a domain
  const domainResult = await stopreg.verification.checkDomain('gmail.com');
  console.log('Provider:', domainResult.data.domain.provider);
}

runCheck();

Usage

Email Verification

Check detailed metrics for any email address:

import { StopReg } from '@stopreg/stopreg';

const stopreg = new StopReg({ apiToken: '...' });

const result = await stopreg.verification.checkEmail('[email protected]');

console.log(result.data.input.email);                  // "[email protected]"
console.log(result.data.classification.is_disposable);  // false
console.log(result.data.classification.is_role_based);  // false
console.log(result.data.mail_server.mx_found);          // true

Domain Verification

Verify a domain before allowing a user to register:

const result = await stopreg.verification.checkDomain('stopreg.com');

console.log(result.data.domain.name);          // "stopreg.com"
console.log(result.data.domain.provider);      // "google"
console.log(result.data.mail_server.mx_found); // true

Error Handling

The SDK throws descriptive errors for invalid inputs or API issues.

try {
  await stopreg.verification.checkEmail('invalid-email');
} catch (error) {
  // "A valid email address is required."
  console.log(error.message); 
}

License

MIT © StopReg