7 Free Data APIs That Power My Side Projects (With Code)

I build a lot of side projects. And every single one needs data from somewhere. After months of trial and error, these are the 7 free APIs I keep coming back to. All of them work without an API key (or with a free one), return real data, and have solid documentation. 1. NASA Open APIs — Space Data for Free NASA gives away everything: satellite imagery, asteroid data, Mars rover photos, exoplanet catalogs. import requests # Astronomy Picture of the Day apod = requests.get("https://api.nasa.gov/planetary/apod", params={"api_key": "DEMO_KEY"}).json() print(f"{apod['title']}\n{apod['url']}") # Near Earth Objects today neo = requests.get("https://api.nasa.gov/neo/rest/v1/feed/today", params={"api_key": "DEMO_KEY"}).json() print(f"{neo['element_count']} asteroids near Earth today") Toolkit: nasa-open-data-toolkit 2. World Bank API — Global Economic Data 216 countries, 16,000+ indicators, 60 years of data. GDP, population, CO2, education — everything. resp = requests.get( "https://api.worldba