Anti-Malware – Free-tier APIs
16 Free-tier APIs in the category Anti-Malware. Free public web APIs that developers and AI agents can call. Entries come from the open public-apis list; each link was checked automatically (HTTP status) on the date shown, which says the site responded, not that the API is good.
AbuseIPDB
IP/domain/URL reputation
AlienVault Open Threat Exchange (OTX)
IP/domain/URL reputation
CAPEsandbox
Malware execution and analysis
Google Safe Browsing
Google Link/Domain Flagging
IPWhois.net Blacklist
Community IP blacklist to check and report abusive IP addresses
MalDatabase
Provide malware datasets and threat intelligence feeds
MalShare
Malware Archive / file sourcing
Malwagon
Detonates files and URLs in instrumented VMs and returns behaviour, IOCs and ATT&CK
MalwareBazaar
Collect and share malware samples
NoPhishy
Check links to see if they're known phishing attempts
Scanii
Simple REST API that can scan submitted documents/files for the presence of threats
ScanMalware
Scan URLs in a sandboxed browser and search past scans by domain, IP, ASN, JARM or favicon hash
URLhaus
Bulk queries and Download Malware Samples
URLScan.io
Scan and Analyse URLs
VirusTotal
VirusTotal File/URL Analysis
Web of Trust
IP/domain/URL reputation