Secure random string generator.

Catholic liturgical calendar.

JSON API for hand curated Chuck Norris jokes.

Provides access to millions of pages of historic US newspapers from the Library of Congress.

Data about various grocery products and foods.

Online open-access digital library for pre-modern Chinese texts.

Chinese character definitions and pronunciations.

Chess.com read-only REST API.

Steam/PC Game Prices and Deals.

Non-profit charity data.

Chainpoint is a global network for anchoring data to the Bitcoin blockchain.

Build hybrid smart contracts with Chainlink.

Brazil RESTful API to find information about streets, zip codes, neighborhoods, cities and states.

Search engine for Internet connected host and devices.

The US Census Bureau provides various APIs and data sets on demographics and businesses.

Library info on CDNJS.

Pictures of cats from Tumblr.

Doctor Who API.

Cat as a service (cats pictures and gifs).

Daily cat facts.

Location Information Prediction.

Create maps and markers for anything.

Job search engine.

API to calculate carbon (C02) emissions estimates for common C02 emitting activities.

Malware execution and analysis.

Official JSON API providing real-time league, team and player statistics about the CFL.

United States ham radio callsigns.

Worldwide Holidays.

Bugcrowd API for interacting and tracking the reported issues programmatically.

The fastest continuous integration and continuous delivery platform.