Free APIs
Free APIs for developers
Open-Meteo, MET Norway Locationforecast, National Weather Service API, OpenWeatherMap…
Nominatim (OpenStreetMap), Overpass API, Mapbox, Geoapify…
CoinGecko API, CoinPaprika API, CoinMarketCap API, Binance Spot Market Data API…
Frankfurter, ExchangeRate-API, Open Exchange Rates, Fixer…
Google Gemini API, Groq, OpenRouter, Hugging Face Inference Providers…
Abstract Email Validation, Hunter Email Verifier, ZeroBounce, mailboxlayer…
IPinfo, ip-api.com, ipgeolocation.io, ipify…
NewsAPI.org, GNews API, NewsData.io, mediastack…
TheSportsDB, API-Football (API-Sports), BALLDONTLIE, football-data.org…
The Movie Database (TMDB), OMDb API, TVmaze API, Watchmode…
MusicBrainz API, Last.fm API, Deezer API, iTunes Search API…
Open Library API, Google Books API, Gutendex, Wikimedia REST API…
NASA Open APIs, Launch Library 2, Open Notify (ISS), Where the ISS at?…
api.data.gov, US Census Bureau API, World Bank Indicators API, Congress.gov API…
Google Cloud Translation, Azure AI Translator, LibreTranslate, MyMemory Translation API…
Unsplash API, Pexels API, Pixabay API, GIPHY API…
JSONPlaceholder, DummyJSON, Fake Store API, Random User API…
TheMealDB, TheCocktailDB, Spoonacular Food API, Open Food Facts API…
OpenSky Network API, airplanes.live API, aviationstack, Amadeus Self-Service APIs…
openFDA, RxNav / RxNorm API, ClinicalTrials.gov API, NCBI E-utilities…
GitHub REST API, npm Registry API, PyPI JSON API, Docker Hub API…
VirusTotal API, AbuseIPDB, NVD CVE API, Pwned Passwords API…
PokeAPI, Rick and Morty API, Open Trivia Database, Dog CEO API…
No key needed
Open-Meteo · MET Norway Locationforecast · National Weather Service API · wttr.in · Bright Sky (DWD) · Aviation Weather Center Data API · Nominatim (OpenStreetMap) · Overpass API · Zippopotam.us · REST Countries · CoinPaprika API · Binance Spot Market Data API · mempool.space API · SEC EDGAR APIs · Frankfurter · Currency API (fawazahmed0) · Ollama API · ip-api.com · ipify · ipwho.is · Hacker News API · Bluesky public API · Jolpica F1 · OpenF1 · TVmaze API · Jikan (MyAnimeList) · AniList GraphQL API · SWAPI · MusicBrainz API · Deezer API · iTunes Search API · Radio Browser API · Open Library API · Gutendex · Wikimedia REST API · Internet Archive APIs · Library of Congress API · Launch Library 2 · Open Notify (ISS) · Where the ISS at?
Building something? Free credits and perks · API tools on DevHunt · AI model API pricing.
FAQ
What makes an API "free" on this list?+
A free tier you can keep using, stated on the API’s own pricing or docs page. Short trials and APIs that need a sales call are left out. Many free tiers are for non-commercial use or have daily limits; the "Catch" line says so.
Which free APIs need no API key?+
APIs marked "No key" in each category work without signing up, such as Open-Meteo for weather. They are the quickest to try in a side project.
How often is this list checked?+
Every API was checked on its official docs on 2026-10-08; dead and trial-only APIs were removed. Limits change, so confirm on the docs before you build on one.