ThreatCluster
FreemiumLiveLast verified 24 Sept 2026
AI-clustered threat intel: incident clusters, IOCs, CVEs, APT profiles, ransomware leak-site data.
Example request
curl -s 'https://threatcluster.io/api/threats?since=7d'
Free tier, in plain English
Every free account can mint a read-only key with 100 credits a day and a 7-day data window; some endpoints, like the trending-threats feed and the plain-text IOC feed, need no key at all.
Alternatives in Threat Intel
AbuseIPDBCrowd-sourced IP address reputation and abuse reports for blocking malicious traffic.FreemiumAlienVault Open Threat Exchange (OTX)Looks up threat intelligence on IPs, domains, URLs, and files: malware, passive DNS, and geo data.CensysSearch engine for internet-connected hosts: open ports, services, certificates and banners.FreemiumDefend NetworkDaily JSON feed of exploited CVEs with CVSS/EPSS scores and CISA KEV status, no key needed.FreeEmailRepReputation and risk score for an email address from breach, blacklist, and abuse signals.