FREE API EXPLORER
Browse curated free APIs that require no authentication. Monitor availability and integrate faster.
TELEMETRY
SYSTEM STATUS
TELEMETRY
PERFORMANCE
TELEMETRY
RELIABILITY
Checks if user credentials have been compromised in known data breaches.
FilterLists
An API that provides lists of filters for adblockers, firewalls, and other tools.
Hashable
A REST API to access high-level cryptographic functions like hashing and checksums.
InternetDB
Enables fast lookups of open ports and associated vulnerabilities for IP addresses.
IP Data
Provides detailed information on IP addresses, including geolocation and threat detection.
Detects proxy, VPN, and malicious IP addresses to prevent fraud and abuse.
Kickbox
A professional email verification API to reduce bounce rates and fraudulent signups.
MailCheck.ai
An API to prevent users from signing up with temporary or disposable email addresses.
A scanner from Mozilla Observatory that checks for security-related HTTP headers.
A scanner from Mozilla Observatory that checks for TLS/SSL best practices.
The official U.S. National Vulnerability Database (NVD) API for cybersecurity data.
OpenSanctions
An API for accessing data on international sanctions, crime, and politically exposed persons.
Throwaway Email
The Throwaway Email API allows users to check if an email address is from a disposable domain.