Resources · API directory
Public APIs
A community-curated catalogue of public APIs across finance, health, weather, maps, sports, data and many other categories.
What it is
A useful starting point—not another unexplained bookmark.
Public APIs is a large, community-maintained directory for discovering data and services you can connect to an app, website or AI agent. Entries are grouped by topic and show whether authentication, HTTPS and browser access are available.
Useful for
When to use it
- Finding an API for a product prototype
- Comparing possible data sources before development
- Discovering ideas for fintech, health, fitness, travel and utility apps
What you will find
Inside the resource
- Topic-based API lists
- Authentication and HTTPS indicators
- Links to the original API documentation
- Categories ranging from finance and health to weather and transport
Quick start
How I would use it
- 01
Choose the product job
Start with what your user needs to do—not with an interesting API. For example: compare exchange rates or show local air quality.
- 02
Open the matching category
Use the repository contents to jump to a category, then shortlist two or three APIs.
- 03
Check the real documentation
Confirm authentication, limits, pricing, permitted usage and data freshness on the provider’s own website.
- 04
Test one small request
Try a single endpoint before designing the full feature. Keep API keys on a secure server, never inside a public app.
Ready?
Continue to GitHub · public-apis
Keep exploring
Where to go next
Next step
Want to use one of these in a real product?
Tell me the user problem. I will help you choose the resource and the safest first integration.