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OpenWeatherMap
Get weather for 200,000+ cities, free.
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All Weather Fun Geo Space Directory
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Featured Public APIs

OpenWeatherMap Weather

Get current and forecasted weather data for any location worldwide, including over 200,000 cities.

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The Cat API Fun New

A fun API to get random pictures of cats for your pet projects or just for fun.

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REST Countries Geo

Get detailed information about countries, such as population, currencies, and languages.

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Public APIs List Directory

A collective list of free APIs for use in software and web development across categories.

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NASA Open APIs Space

Access NASA data, including imagery, Mars Rover photos, and more directly from their open APIs.

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JokeAPI Fun

Get programming jokes or general jokes in various formats, filtered by type and category.

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Frequently Asked Questions

How do I use an API listed here?
Click "Explore API" to visit the documentation and get your endpoint, then use it in your frontend, backend, or with our playground above.
Are these APIs free to use?
Yes, all APIs listed here are free to use. Some may require registration or have usage limits—check their docs.
Can I contribute more APIs?
Absolutely! Click "Contribute an API" or see the Contributors section above.
Is there a limit to how many APIs I can use?
No, you can use as many as you like! Each API may have its own request limits—see their docs for more info.
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Recent Blog Posts & Tutorials

Build a Weather App in 3 Minutes
Learn how to use OpenWeatherMap to make a slick weather dashboard with just HTML/JS.
Read more
Using REST Countries for Global Insights
Fetch beautiful country info cards in your React or Vue project!
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Integrate JokeAPI for Fun UIs
Keep users engaged with random programming jokes... in just one GET call.
Read more