API archive entry · source-reported
Censys
Search engine for Internet connected host and devices
Other Security APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
RealBots
Verify whether requests claiming to be GPTBot, ClaudeBot & other AI crawlers are real
API key · HTTPS reported · CORS No
isMalicious
Reputation of IPs, domains, URLs and file hashes from aggregated threat feeds, plus CVE lookups
API key · HTTPS reported · CORS No
Whoisfreaks
Domain and DNS related information that will equip organizaion with comprehensive threat intelligence and attack surface analysis capabilities for enhanced security
API key · HTTPS reported · CORS No
WhoisJSONApi
Domain WHOIS information to detect and prevent online threats, enhancing overall online safety for individuals and organizations
API key · HTTPS reported · CORS No
ThreatCluster
Threat intelligence: incident clusters, validated IOCs, CVEs, ransomware leak-site victims
API key · HTTPS reported · CORS No
Domain Intelligence
DNS, WHOIS/RDAP, SSL, subdomain enumeration, and email security in one parallel call
API key · HTTPS reported · CORS No
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.