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+ 0 = . / , ] g " # ) > /v1/apis · THE FREE API DIRECTORY
Public APIs[0039]
39 free public APIs across 52 categories. Filter by auth, CORS, HTTPS support — find what you need to build with.
Application Environment Verification
Android library and API to verify the safety of user devices, detect rooted devices and other risks
ArkForge Trust Layer
Cryptographic proof API for HTTP exchanges — Ed25519, RFC 3161, and Sigstore Rekor attestation
BinaryEdge
Provide access to BinaryEdge 40fy scanning platform
BitWarden
Best open-source password manager
Botd
Botd is a browser library for JavaScript bot detection
Bugcrowd
Bugcrowd API for interacting and tracking the reported issues programmatically
Censys
Search engine for Internet connected host and devices
Classify
Encrypting & decrypting text messages
Complete Criminal Checks
Provides data of offenders from all U.S. States and Puerto Rico
CRXcavator
Chrome extension risk scoring
EmailRep
Email address threat and risk prediction
Escape
An API for escaping different kind of queries
FilterLists
Lists of filters for adblockers and firewalls
FingerprintJS Pro
Fraud detection API offering highly accurate browser fingerprinting
FraudLabs Pro
Screen order information using AI to detect frauds
FullHunt
Searchable attack surface database of the entire internet
GitGuardian
Scan files for secrets (API Keys, database credentials)
GreyNoise
Query IPs in the GreyNoise dataset and retrieve a subset of the full IP context data
HackerOne
The industry’s first hacker API that helps increase productivity towards creative bug bounty hunting
HaveIBeenPwned
Passwords which have previously been exposed in data breaches
Intelligence X
Perform OSINT via Intelligence X
LeakInsight
Find leaked or exposed credentials by email, username, phone, domain, hash, or breach origin
LoginRadius
Managed User Authentication Service
Microsoft Security Response Center (MSRC)
Programmatic interfaces to engage with the Microsoft Security Response Center (MSRC)
Mozilla http scanner
Mozilla observatory http scanner
Mozilla tls scanner
Mozilla observatory tls scanner
National Vulnerability Database
U.S. National Vulnerability Database
OWASP ZAP
Automated security testing API for web apps
Passwordinator
Generate random passwords of varying complexities
PhishStats
Phishing database