Documentation

Introduction

Userscanner API allows you to score email addresses and domains to identify high-value leads. It combines WHOIS data, website metadata, and AI analysis to provide a comprehensive score.

Authentication

Authenticate your requests using your API Key as a query parameter. You can manage your keys in the Dashboard.

Endpoints

Analyzes a domain or email address.

Parameters

• email (optional): The email address to check.
• domain (optional): The domain to check (if email not provided).
• key (required): Your API Key.

Response

{
  "result": true,
  "isCompanyEmail": true,
  "emailType": "company",
  "score": "very high",
  "scorePoints": 10,
  "companyDomain": "tesla.com",
  "companyDomainCreated": "1992-11-04",
  "companyName": "Tesla",
  "companyInfo": "Tesla is a leading electric vehicle and clean energy company.",
  "employeesNumber": "10000+",
  "country": "US",
  "industry": "Automotive",
  "lastUpdate": "2025-11-29T09:19:21.563Z"
}

Email types

emailType tells you what kind of mailbox the address belongs to:

• company: a business domain. The response includes company details and a score from 1 to 10.
• personal: a free mail provider such as Gmail or Outlook. Score is always 0.
• disposable: a temporary mailbox service such as Mailinator or YOPmail. Score is always 0; treat these sign-ups as junk.

isCompanyEmail is kept for backwards compatibility and is true only for company.

Support

Have a question, found a bug, or need a higher rate limit? Email us at hello@userscanner.com and we will get back to you.