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GuideAI DevelopmentSeptember 29, 2026

Almost Every Free API, One Repo

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A field guide to why public-apis became one of GitHub's most-starred repositories, and how to use it: a community directory of around 1,400 APIs across roughly fifty categories, browsed by the feature you want to build.

What's inside
  • Why ~480k developers bookmarked this one repo
  • Among the top three most-starred projects on GitHub
  • Weather, crypto, sports, finance, NASA and dozens more
  • Auth, HTTPS and CORS shown for every entry
  • Pick by the feature you're building, not by the list

Why Almost Half a Million Developers Starred One Repo

Few repositories on GitHub have been starred more than public-apis — the guide puts it at over 480,000, among the top three on the entire platform. That number is the interesting part. Stars are developers bookmarking something they expect to come back to, and this is the thing a very large share of them decided they'd need again.

What they bookmarked is a single community-maintained directory of free public APIs.


What's Behind the Stars

Around 1,400 APIs across roughly fifty categories. For a side project that means you scan one table instead of an afternoon of searching: live weather, movie and TV databases, real-time crypto prices, sports stats, finance data, NASA and space data, games, animals and dozens more.

Each entry tells you the three things that decide whether you can actually use it — whether it needs auth, whether it's served over HTTPS, and whether it supports CORS for calls from the browser.


Use It Like a Menu

Start from the feature you want to build rather than from the list. Need a dashboard with live numbers? Head to finance or crypto. A weekend toy? Space, games or animals. Pick the category, check the auth and CORS columns, grab the endpoint, ship.


What's in the Guide

Why it's one of GitHub's most-starred projects, the numbers, a tour of the categories worth knowing, and a direct link.

The full field guide is in the PDF.


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