Free public APIs

API-Times-Adder

The best way to add time interval data to a dataset.

TLE

Providing a unified and secure layer of trust among participants of a network.

USGS Earthquake API

Unlock earthquake insights for data-driven decisions.

USGS Water Services API

Cost-Effective and Comprehensive Access to Water Data

aev

Evolve Your User Profiles with Contextual Relevance

BinaryEdge

Unlock the power of Internet data

Bitwarden API

Bitwarden API: Securely saves, manages & synchronizes your passwords, cards, and documents

Bot Detection (BotD) API

Detecting Bots with Confidence

Bugcrowd API

The power of the crowd.

CENSYS Search API

Unlock internet insights with CENSYS Search API.

Classify

Rule-based parameter classification made simple

Crxcavator API

Identify The Risk Within Your Web Applications

Email Rep

Antifraud, Security, Reputation Intelligence for Email

FilterLists

Global Access to Open Internet

FingerprintJS

Secure Profiling Technology for the Web

FraudLabs Pro Screen Order API

Giving eCommerce Businesses the Tools to Fight Fraud

FullHunt API

Unlocking the potential of interactive data visualizations

GitGuardian API

Protect Your Organization from Data Leaks

GreyNoise API

Intelligence to detect and respond to Internet-wide threats

HaveIBeenPwned API v3

Secure your digital life with HaveIBeenPwned.

LoginRadius API

The All-in-One API Solution For Seamless Social Login Integration

Microsoft Security Report Center (MSRC)

Protecting people and their data

HTTP Observatory API

Gain invaluable security insights with the HTTP Observatory API.

Mozilla TLS Observatory API

Trust your online relationships through digital certificates