VirusTotal
FreemiumUntestedOur check runs without a key, so we couldn't test this one. It doesn't mean it's down.
Scans files, URLs, domains and IPs against dozens of antivirus engines and blocklists.
Example request
curl -s --request GET --url 'https://www.virustotal.com/api/v3/files/{id}' --header 'x-apikey: $API_KEY'Free tier, in plain English
A free public API key gives about 500 lookups a day at 4 per minute, but the terms bar commercial use.
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.