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

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-intelli