BUILD SOMETHING USEFUL

Security APIs

Discover APIs for defensive security research and authorized analysis. A listing describes a source of information, not a security certification or permission to test another system.

61APIs

1Categories

25No Authentication

61HTTPS Supported

Browse all 52 categories

APILayer APIs17 Animals24 Anime20 Anti-Malware17 Art & Design31 Authentication & Authorization7 Blockchain18 Books26 Business47 Calendar22 Cloud Storage & File Sharing19 Continuous Integration6 Cryptocurrency96 Currency Exchange27 Data Validation16 Development220 Dictionaries15 Documents & Productivity53 Email38 Entertainment19 Environment30 Events5 Finance97 Food & Drink36 Games & Comics111 Geocoding112 Government126 Health47 Jobs37 Machine Learning54 Music36 News26 Open Data79 Open Source Projects11 Patent4 Personality27 Phone8 Photography38 Programming5 Science & Math59 Security61 Shopping28 Social58 Sports & Fitness66 Test Data37 Text Analysis20 Tracking11 Transportation97 URL Shorteners21 Vehicle16 Video58 Weather47

Search APIs

CategoryAuthenticationHTTPSCORSSort

61 matching APIs · Loading full catalog…

Source listed

Agent Verifier

Security

Self-check for AI agents: verifies Web Bot Auth signatures and shows how a request looks

Auth: No Auth
HTTPS: Yes
CORS: No

View Documentation Details →

Source listed

Application Environment Verification

Security

Android library and API to verify the safety of user devices, detect rooted devices and other risks

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

BinaryEdge

Security

Provide access to BinaryEdge 40fy scanning platform

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

BitWarden

Security

Best open-source password manager

Auth: OAuth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Botd

Security

Botd is a browser library for JavaScript bot detection

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Bugcrowd

Security

Bugcrowd API for interacting and tracking the reported issues programmatically

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Censys

Security

Search engine for Internet connected host and devices

Auth: API Key
HTTPS: Yes
CORS: No

Visit Provider Details →

Source listed

CISA Known Exploited Vulnerabilities

Security

CISA KEV catalog of actively exploited CVEs as JSON, filterable by vendor, with CWE and due dates

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Classify

Security

Encrypting & decrypting text messages

Auth: No Auth
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Source listed

Complete Criminal Checks

Security

Provides data of offenders from all U.S. States and Pureto Rico

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

CompliAPI

Security

Screen crypto addresses, emails, websites, IDs and countries against OFAC, EU, UK sanctions lists

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

CRXcavator

Security

Chrome extension risk scoring

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

CSR.plus

Security

Generate certificate signing requests and private keys without OpenSSL

Auth: No Auth
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

dead-drop

Security

Ephemeral zero-knowledge encrypted data sharing

Auth: No Auth
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Dehash.lt

Security

Hash decryption MD5, SHA1, SHA3, SHA256, SHA384, SHA512

Auth: No Auth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Domain Intelligence

Security

DNS, WHOIS/RDAP, SSL, subdomain enumeration, and email security in one parallel call

Auth: API Key
HTTPS: Yes
CORS: No

Visit Provider Details →

Source listed

EmailRep

Security

Email address threat and risk prediction

Auth: No Auth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Escape

Security

An API for escaping different kind of queries

Auth: No Auth
HTTPS: Yes
CORS: No

View Documentation Details →

Source listed

FilterLists

Security

Lists of filters for adblockers and firewalls

Auth: No Auth
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

FingerprintJS Pro

Security

Fraud detection API offering highly accurate browser fingerprinting

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

FOFA

Security

Search engine for Internet connected assets and devices

Auth: API Key
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

FraudLabs Pro

Security

Screen order information using AI to detect frauds

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

FullHunt

Security

Searchable attack surface database of the entire internet

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

GitGuardian

Security

Scan files for secrets (API Keys, database credentials)

Auth: API Key
HTTPS: Yes
CORS: No

View Documentation Details →

Before you integrate

Use only data and systems you are authorized to inspect.
Review what sensitive indicators or files a request would disclose to the provider.
Treat threat classifications as evidence to investigate, not automatic proof that a resource is safe or malicious.

Source synchronized 2026-10-26 · Revision 82e763ed · Report a source problem