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Search 2,112 public APIs across 50 categories. Compare authentication and review status, read the docs, and try requests in your browser.

2,112APIs to explore

Showing 1369–1404 of 2,112 APIs

Community listing
Science

USGS Water Services

Water quality and level info for rivers and lakes

◇ Reported: No keyCheck pricing
Community listing
Science

VedIntel™ AstroAPI

Vedic astrology computation — birth charts, dashas, panchang, AI narratives

Reported: API keyCheck pricing
Community listing
Science

xMath

Random mathematical expressions

◇ Reported: No keyCheck pricing
Community listing
Security

Application Environment Verification

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

Reported: API keyCheck pricing
Community listing
Security

BinaryEdge

Provide access to BinaryEdge 40fy scanning platform

Reported: API keyCheck pricing
Community listing
Security

BitWarden

Best open-source password manager

Reported: OAuthCheck pricing
Community listing
Security

Botd

Botd is a browser library for JavaScript bot detection

Reported: API keyCheck pricing
Community listing
Security

Bugcrowd

Bugcrowd API for interacting and tracking the reported issues programmatically

Reported: API keyCheck pricing
Community listing
Security

Censys

Search engine for Internet connected host and devices

Reported: API keyCheck pricing
Community listing
Security

Classify

Encrypting & decrypting text messages

◇ Reported: No keyCheck pricing
Community listing
Security

Complete Criminal Checks

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

Reported: API keyCheck pricing
Community listing
Security

CRXcavator

Chrome extension risk scoring

Reported: API keyCheck pricing
Community listing
Security

CSR.plus

Generate certificate signing requests and private keys without OpenSSL

◇ Reported: No keyCheck pricing
Community listing
Security

dead-drop

Ephemeral zero-knowledge encrypted data sharing

◇ Reported: No keyCheck pricing
Community listing
Security

Dehash.lt

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

◇ Reported: No keyCheck pricing
Community listing
Security

Domain Intelligence

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

Reported: API keyCheck pricing
Community listing
Security

EmailRep

Email address threat and risk prediction

◇ Reported: No keyCheck pricing
Community listing
Security

Escape

An API for escaping different kind of queries

◇ Reported: No keyCheck pricing
Community listing
Security

FilterLists

Lists of filters for adblockers and firewalls

◇ Reported: No keyCheck pricing
Community listing
Security

FingerprintJS Pro

Fraud detection API offering highly accurate browser fingerprinting

Reported: API keyCheck pricing
Community listing
Security

FOFA

Search engine for Internet connected assets and devices

Reported: API keyCheck pricing
Community listing
Security

FraudLabs Pro

Screen order information using AI to detect frauds

Reported: API keyCheck pricing
Community listing
Security

FullHunt

Searchable attack surface database of the entire internet

Reported: API keyCheck pricing
Community listing
Security

GitGuardian

Scan files for secrets (API Keys, database credentials)

Reported: API keyCheck pricing
Community listing
Security

GreyNoise

Query IPs in the GreyNoise dataset and retrieve a subset of the full IP context data

Reported: API keyCheck pricing
Community listing
Security

HackerOne

The industry’s first hacker API that helps increase productivity towards creative bug bounty hunting

Reported: API keyCheck pricing
Community listing
Security

Hashable

A REST API to access high level cryptographic functions and methods

◇ Reported: No keyCheck pricing
Community listing
Security

Hybrid Analysis

File and URL malware analysis powered by Falcon Sandbox

Reported: API keyCheck pricing
Community listing
Security

HaveIBeenPwned

Passwords which have previously been exposed in data breaches

Reported: API keyCheck pricing
Community listing
Security

Intelligence X

Perform OSINT via Intelligence X

Reported: API keyCheck pricing
Community listing
Security

IPLogs

Free VPN, proxy, Tor and datacenter IP detection. 13 sources, active probing

◇ Reported: No keyCheck pricing
Community listing
Security

LoginRadius

Managed User Authentication Service

Reported: API keyCheck pricing
Community listing
Security

Mozilla http scanner

Mozilla observatory http scanner

◇ Reported: No keyCheck pricing
Community listing
Security

Mozilla tls scanner

Mozilla observatory tls scanner

◇ Reported: No keyCheck pricing
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Know what’s been checked. Reviewed guides include provider documentation and examples. Community listings contain reported information that may have changed. Our methodology →