Shodan Has a Free API — Search Every Device Connected to the Internet

Shodan is the search engine for Internet-connected devices. Servers, webcams, industrial systems, databases — if it's online, Shodan has indexed it. Their API gives you programmatic access to this data. The free tier includes search, host lookup, and DNS resolution. Why Security Pros Use Shodan A penetration tester was hired to assess a company's external attack surface. Instead of running port scans (which would take hours and trigger alerts), they queried Shodan. In seconds, they had a complete map of every public-facing service — including an exposed MongoDB on port 27017 with no authentication. The vulnerability had been live for 6 months. Nobody knew. Get Your Free API Key Create account at shodan.io Your API key is on your account page Free tier: search filters limited, but host lookup is unlimited Look Up Any IP \ `python import requests API_KEY = "your-shodan-api-key" def lookup_host(ip): """Get all known services running on an IP.""" response = requests.get( f"https://api.shod