Free APIs
Keyless and free-tier public APIs you can call from any project today.
4,000+ community-verified trivia questions across 24 categories. No API key. Multiple choice and true/false. Session tokens prevent question repeats. Powers the SlashAI daily quiz.
Free trivia question API with subcategory filtering, difficulty levels, and region support. Simple GET request returns 10 questions instantly. No key, no signup required.
Keyless global weather forecasts, historical data, air quality and marine API.
Hourly PM2.5, PM10, pollen and US/EU AQI for any coordinate.
Search city names to coordinates with population and timezone metadata.
Sunrise, sunset and golden-hour times for any lat/lng, no key needed.
Real-time worldwide earthquake feed queryable by magnitude, time and region.
Crypto prices, market caps and 24h change; free tier needs no key.
ECB-backed currency conversion with no key and no rate limit.
Daily-updated fiat rates; the open endpoint works with no key at all.
Unofficial JSON quote endpoint for stocks and indices like ^NSEI.
Official daily NAV for every mutual fund scheme in India, plain text.
Astronomy Picture of the Day plus Mars rovers, NEOs and EPIC imagery.
Live International Space Station position, altitude and velocity, no key.
Community-maintained launch history, rockets, ships and Starlink data.
Tiny classic API for ISS location and humans currently in space.
Thousands of Indian government datasets via API - agriculture, PIN codes, prices.
Look up post offices by PIN code with district and state details.
Development indicators for every country - GDP, literacy, energy - no key.
Country profiles: flags, capitals, currencies, languages and timezones.
Read-only Hacker News items, users and top/new/best story lists.
Turns any RSS feed into clean JSON without writing a parser.
Append .json to almost any Reddit URL to get its data as JSON, no OAuth needed.
Recipes with ingredients, steps, categories and images; test key '1' is free.
Cocktail and mocktail recipes with ingredients, glassware and images.
Crowdsourced nutrition and ingredient data for millions of packaged foods.
Every Pokémon's stats, moves, evolutions and sprites, fully keyless.
The original Star Wars data API - films, characters, planets, starships.
Characters, locations and episodes from the show, GraphQL included.
Quiz questions across categories and difficulty, session tokens included.
Programming and general jokes with safe-mode filtering, no key.
Random Chuck Norris jokes grouped into categories, no key.
Inspirational quotes of the day and random quotes, no key.
One random piece of advice per request, searchable by topic.
Suggests a random activity when you have nothing to do.
Simple keyless lyrics lookup by artist and song title.
Apple's keyless search over music, movies, podcasts, apps and books.
Music search with 30-second previews and charts, no auth for reads.
Geolocate an IP to city, ISP and timezone; no key for non-commercial use.
Accurate IP lookup with ASN and company data on a generous free tier.
OpenStreetMap geocoding and reverse geocoding, no key, fair-use policy.
Forward/reverse geocoding built on open data with a real free tier.
Current time and offsets for any IANA timezone, no key.
Millions of place names with postal codes, elevation and population.
Prayer times, Hijri calendar conversion and Qibla direction worldwide.
Color names, schemes and HEX/RGB/HSL/CMYK conversions, no key.
Deep-learning color palette generator returning five hex colors per call.
Deterministic SVG avatars from any seed across 30+ art styles, keyless.
Generate initial-letter avatar images straight from a URL.
Random Unsplash-sourced placeholder photos served by size URL.
Fetch a company logo image directly from its domain, no key.
Extract metadata, screenshots or PDFs from any URL on a free tier.
Check any IP for open ports, vulnerabilities and hostnames, no key.
Reputation check on IPs - spam, brute-force and abuse reports.
Real-time grid carbon intensity and generation mix for Great Britain.
Over 20,000 indexed dog images browsable by breed, no key.
Fake products, carts, users, recipes and auth flows for prototyping.
The classic fake REST API of posts, todos and albums for demos.
Generate consistent fake user profiles with photos for UI testing.
Estimate age, gender and nationality probabilities from first names.
Search, summaries and full article content from Wikipedia, keyless.
Books, authors, covers and reading lists from the Internet Archive.
Repos, users, issues and trends; 60 unauthenticated requests/hour.
Google Lighthouse scores and Core Web Vitals for any URL.
US drug approvals, recalls, adverse events and device safety data.
Population, housing and demographic statistics down to block level.