Brother Long's daily GitHub神器, a top-rated open-source project with millions of stars.

420k stars, a repository packed with over a thousand free API endpoints, covering everything from weather and exchange rates to AI image generation.
Most project developers get stuck at the first step—finding APIs—either because they’re expensive or poorly documented.
Today, a complete breakdown of how to use public-apis, solving your data source problems in ten minutes.
1. What exactly can this do?
Simply put, it’s an encyclopedia of free APIs.
Weather, exchange rates, stocks, news, translation, image search, QR code generation—over two thousand endpoints sorted by category.
No registration or payment needed; just copy the link to call the API. The documentation also indicates whether a key is required and if CORS is supported.
2. How to find and use APIs specifically?
Go directly to the repository and check the README.
Click on categories in the left menu, like Finance, Weather, AI.
Each API is listed in one line with its name, description, whether authentication is needed, and HTTPS support—easy to see at a glance.
When making demos or practicing projects, just pick one and run it—no need to generate data yourself.
3. Common pitfalls for beginners
Some APIs claim to be free but actually have call limits; always check the restrictions in the documentation before using in a production project.
Some APIs are poorly maintained over time; if they don’t work, switch to the next one. Usually, there are several alternatives in the same category.
Also, note that some require an API Key. Although free, you need to register first to get the key before using.
The real difference isn’t how many APIs you can call, but knowing where to quickly find reliable ones.
Good tools aren’t short of stars, but most people would rather spend two hours searching than two minutes opening this repository.
If you no longer have to worry about finding APIs when working on a project, what type of application would you build first?