8 live public APIs — no sign-up, no keys. Hit Live to see fresh data, Code to see how it's called.
fetch('https://api.wheretheiss.at
/v1/satellites/25544')
.then(r => r.json())
.then(d => {
d.latitude // e.g. 45.32
d.longitude // e.g. -87.21
d.altitude // km above Earth
d.velocity // speed in km/h
});
fetch('https://api.nasa.gov/planetary
/apod?api_key=DEMO_KEY')
.then(r => r.json())
.then(d => {
d.title // photo title
d.url // image URL
d.date // YYYY-MM-DD
d.explanation // description
d.media_type // "image" or "video"
});
fetch('https://opentdb.com/api.php
?amount=1&type=multiple')
.then(r => r.json())
.then(d => {
const q = d.results[0];
q.question // the question
q.correct_answer // right answer
q.incorrect_answers // array of 3
q.category // e.g. "Science"
q.difficulty // easy/medium/hard
});
// IDs 1–898 are valid const id = Math.floor(Math.random() * 898) + 1; fetch(`https://pokeapi.co/api/v2/pokemon/${id}`) .then(r => r.json()) .then(d => { d.name // "pikachu" d.sprites.front_default // sprite URL d.types[0].type.name // "electric" d.stats[0].base_stat // HP value });
// No API key needed! fetch('https://api.open-meteo.com/v1/forecast ?latitude=37.77&longitude=-122.42 ¤t_weather=true &temperature_unit=fahrenheit') .then(r => r.json()) .then(d => { const w = d.current_weather; w.temperature // °F w.windspeed // mph w.weathercode // WMO weather code });
// The URL *is* the response — no JSON! const img = document.createElement('img'); img.src = 'https://cataas.com/cat/gif'; document.body.appendChild(img); // Add ?t=Date.now() to bust the cache // and get a fresh cat every time. // Try: /cat/gif?type=square // or: /cat (returns a still photo)
fetch('https://dog.ceo/api/breeds/image/random')
.then(r => r.json())
.then(d => {
d.message // image URL
d.status // "success"
});
// Breed is encoded in the URL path:
// .../breeds/[breed]/[file].jpg
// Try: /api/breed/husky/images/random
fetch('https://en.wikipedia.org
/api/rest_v1/page/random/summary')
.then(r => r.json())
.then(d => {
d.title // article title
d.extract // short summary text
d.thumbnail // {source, width, height}
d.content_urls // .desktop.page = full URL
});