I Built a Free Clearbit Alternative — Company Enrichment API for Developers

#api #webdev #startup #javascript

Clearbit killed their free tier in April 2025. Now it's "Breeze Intelligence" — $75/month minimum, HubSpot subscription required, credits expire monthly.

I needed company enrichment for a side project and didn't want to pay $0.10 per lookup. So I built my own.

What it does

Give it a domain → get back a full company profile. One API call, 7 data sources:

DNS/MX records → email provider (Google Workspace, Microsoft 365, etc.)
SSL certificate → organization name, issuer
WHOIS → registrar, creation date, country
HTML parsing → description, social links, emails, phones
Tech stack detection → 30+ technologies (React, Shopify, Stripe, etc.)
Schema.org → structured company data
Reverse DNS → hosting provider (AWS, GCP, Cloudflare, etc.)

Example: enrich apple.com

const response = await fetch('https://web-intelligence-api.p.rapidapi.com/enrich', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-RapidAPI-Key': 'YOUR_KEY',
    'X-RapidAPI-Host': 'web-intelligence-api.p.rapidapi.com'
  },
  body: JSON.stringify({ domain: 'apple.com' })
});