The Problem
You need to find APIs for your side project, hackathon, or production app, but Google searches give you dead links, marketing junk, or sketchy sources. Nobody wants to waste time digging through outdated lists or sign up for stuff just to test an endpoint.
What This Does
The public-apis repo is basically a giant, crowd-sourced spreadsheet of free APIs, stored in Markdown and curated by actual humans. The heart of it is the list itself, but there’s more: the scripts/ folder holds Python tools for validating API links (scripts/validate/links.py) and checking format (scripts/validate/format.py). These aren’t rocket science, but they keep the list from turning into link rot. CI is handled by GitHub Actions in .github/workflows/, so every PR gets checked for broken links and formatting before it’s merged. Docs live in README.md and CONTRIBUTING.md, and there’s a bunch of templates so you know what info to submit.
Real-World Use
Let’s say you want to add a new API or just grab one for a quick prototype. Clone the repo, run python scripts/validate/links.py to make sure the links are alive, then browse README.md for the API you want. If you’re contributing, edit the Markdown, run the format validator, and push your PR. The CI will yell at you if you mess up the link or formatting. No magic, just basic automation so the list stays useful.
The Bottom Line
This is the go-to for anyone hunting free APIs—students, devs, hobbyists. The tooling is simple but effective. It’s not fancy, and if you need something more dynamic (like an API marketplace), look elsewhere. For quick discovery and community-driven curation, it’s hard to beat. Just don’t expect anything beyond a well-maintained Markdown list and some sanity checks.