What it is
A community-maintained GitHub repository listing over 1400 free APIs across 50+ categories. One of the most starred repos on GitHub (300k+ stars). Each entry shows the API name, description, auth type (apiKey, OAuth, none), whether it supports HTTPS, and CORS status.
Categories
The list covers: Animals, Anime, Anti-Malware, Art & Design, Authentication, Blockchain, Books, Business, Calendar, Cloud Storage, Continuous Integration, Cryptocurrency, Currency Exchange, Data Validation, Development, Dictionaries, Documents & Productivity, Email, Entertainment, Environment, Events, Finance, Food & Drink, Games & Comics, Geocoding, Government, Health, Jobs, Machine Learning, Music, News, Open Data, Open Source Projects, Patent, Personality, Phone, Photography, Programming, Science & Math, Security, Shopping, Social, Sports & Fitness, Test Data, Text Analysis, Tracking, Transportation, URL Shorteners, Vehicle, Video, Weather.
Why it's useful
- Quick reference when prototyping or building demos
- Find free data sources for side projects
- Discover alternatives to paid APIs
- Good for hackathons and MVPs
Language
Not a code repo - it's a curated README. The list is in Markdown table format. Contributions via pull request.