Top 45 Security APIs For Developers

U.S. National Vulnerability Database.

Domain data API: compromised domain/IP checks, TLD stats, Top 1M ranks, new-domain search and domain lists for 1,500+ TLDs.

Check which of 1,000+ sites an email address or username is registered on, with profile details and the source for each result.

Automated security testing API for web apps.

Generate random passwords of varying complexities.

Phishing database.

Scans the requesting client's IP for open TCP ports with fast or deep modes on IPv4/IPv6.

Generate merchant-specific and one-time use credit card numbers that link back to your bank.

Scan, search and collect threat intelligence data in real-time.

Domain and IP related information such as current and historical WHOIS and DNS records.

Search engine for Internet connected devices.

Access data on all Internet assets and build powerful attack surface management applications.

UK Police data.

Scan files for viruses, worms, trojans, ransomware, and other kinds of malware by sending them to the attachmentAV API powered by Sophos.

VulDB API allows to initiate queries for one or more items along with transactional bots.

Domain and DNS related information that will equip organizaion with comprehensive threat intelligence and attack surface analysis capabilities for enhanced security.