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Public APIs for Beginners: 20 Free APIs to Build Portfolio Projects

Discover 20 free public APIs with zero paywalls or complex auth. Build portfolio apps using weather, astronomy, pokemon, and financial market endpoints.

The best way to solidify your grasp of a simple api is by building hands-on projects. Fortunately, the open-source community provides dozens of free, high-uptime public APIs that require no credit card or tedious onboarding.

Top 5 Beginner-Friendly Public APIs

  1. Open-Meteo: Free weather forecasting with zero API key required. Perfect for a local weather dashboard.
  2. PokeAPI: The quintessential RESTful learning API with full pagination, resource relations, and sprite graphics.
  3. REST Countries: Search country borders, flags, populations, and currencies.
  4. Open Food Facts: Barcode scanning and ingredient safety data used in our built-in food scanner.
  5. NASA APOD API: Astronomy Picture of the Day with high-resolution imagery and scientific descriptions.