AlienVault Open Threat Exchange (OTX)
LiveLast verified 24 Sept 2026
Looks up threat intelligence on IPs, domains, URLs, and files: malware, passive DNS, and geo data.
Example request
curl https://otx.alienvault.com/api/v1/indicators/domain/rghost.net/malware
Free tier, in plain English
No pricing or rate-limit page was found; the indicator-lookup endpoint tested returned live data anonymously with no key, so at least some read access appears unmetered.
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