Best Free APIs for Developers

Zero authentication required, completely free, 16-day forecast, unlimited requests

7-day weather forecast, current conditions, and historical records

Global real-time air quality index (AQI) and pollution sensor datasets

Global community air quality open environmental data platform

Zero authentication required, comprehensive crypto market datasets

Real-time crypto market cap, exchange volume, and live pricing feeds

Industry-leading cryptocurrency index and market valuations

Comprehensive crypto market streaming and historical pricing analytics

Official Binance spot, futures, and real-time market depth endpoints

Ethereum blockchain explorer, smart contract telemetry and gas tracker

Complete Web3 development suite and high-throughput RPC node infrastructure

Enterprise Web3 APIs, NFT indexers, and cross-chain wallet data streaming

Open DeFi TVL protocol data and yield analytics, 100% free

NFT marketplace listings, bids, collection stats, and sales events

Massive database of 500,000+ video games with metadata and player reviews

Twitch video game database with cover artwork, genres, and ratings

Video game deal finder and digital store price comparison, zero auth

Categorized database of free-to-play MMO, RPG and action games

Real-time video game giveaways, promotions, and free DLC alerts

Official Valve Steam user profiles, inventory, and game telemetry

Complete Pokémon catalog, moves, abilities, species, and sprites

Official Riot Games LoL match history, champions, and rankings

Valorant weapon skins, playable agents, maps, and battlepass tiers

Comprehensive Genshin Impact characters, weapons, and artifact stats

Elden Ring bosses, weapons, armor, talismans, and lore encyclopedia

Dungeons & Dragons 5th Edition SRD spells, classes, rules, and monsters

Complete Yu-Gi-Oh card database with artwork, prices, and sets

High-speed Magic: The Gathering card catalog with ruling syntax

Player rankings, live chess matches, tournaments, and club stats

Dota 2 player match histories, hero statistics, and replay telemetry

Warframe active alerts, void fissure cycles, and market status

XIVAPI: Final Fantasy XIV game item database and character tracker

Official Supercell Clash of Clans player profiles and clan rankings

Card deck simulation and dealing REST API with shuffle support

Official Pokémon Trading Card Game card scans, rarities, and market values

Rick and Morty cartoon characters, episode guides, and location metadata

SWAPI: Star Wars universe characters, starships, vehicles, and planets

Official Marvel Comics database: superhero characters, comics, and creators

Community-driven trivia and multiple-choice quiz questions database

Nintendo Amiibo figurines and card database with character details

OpenStreetMap geocoding, reverse search, and global location lookup

Industry-standard mapping, place search, directions, and satellite imagery

Customizable vector maps, navigation turn-by-turn, and geocoding SDKs

Enterprise-grade mapping, traffic telemetry, and fleet routing solutions

Comprehensive global country profiles, currencies, borders, and demographics

Ultra-fast IP to ISO country code geolocation lookup with zero auth

Postal code to geographic coordinates and place names lookup engine

Accurate IP geolocation, currency, time zone, and ISP network lookup

IP geolocation lookup returning ISP, latitude, longitude, and timezone

Enterprise IP address geolocation, ASN mapping, and VPN/proxy detection

Free and unlimited IP geolocation lookup REST endpoint with CORS support

Simple public IP address lookup API with universal CORS support

Discord bot framework, webhooks, voice channels, and server management

Official Telegram bot API for messaging, rich media, and webhook updates

Reddit post feeds, comment trees, subreddits, and user karma data

Live broadcast streaming metadata, clips, chat moderation, and game streams

YouTube video metadata, playlist management, search, and channel feeds

Workspace messaging, slash commands, interactive bots, and workflow webhooks

Developer articles, published listings, tech tags, and community comments

Official Firebase Hacker News top stories, comments, and user profiles

Official Meta WhatsApp Business messaging and customer support API

The Movie Database: 1M+ movies, TV shows, cast metadata, and high-res posters

Open Movie Database: IMDb ratings, movie summaries, and box office data

Comprehensive television show schedules, episode guides, and cast feeds

Movie and TV show watch history, personal lists, and community scrobbling

Studio Ghibli animated films, characters, vehicles, and location datasets

Hogwarts characters, spells, houses, and wizarding world lore catalog

Tolkien Middle-earth books, movie quotes, and character dataset

An API of Ice and Fire: GoT houses, characters, books, and battles

STAPI: The comprehensive Star Trek universe open data catalog

Spotify music catalog, track audio features, user playlists, and playback control

Music recommendations, artist scrobbling, top tracks, and genre tags

Open-source encyclopedic music database: artists, releases, and ISRC records

Music streaming catalog, artist discography, and 30-second track previews

Song lyrics database, community annotations, and musical trivia metadata

Simple and free song lyrics search API with zero authentication

Apple iTunes store search for songs, albums, podcasts, and audiobooks

Collaborative database of Creative Commons licensed audio and sound effects

Open podcast directory, episode feeds, and namespace telemetry

Comprehensive podcast search engine and episode transcription database

Vinyl and CD release catalog, marketplace pricing, and artist discography

Independent artist audio tracks, playlists, and user stream feeds

Live breaking news feeds and search across 80,000+ global sources

Fast Google News alternative for global headlines and keyword tracking

Official open platform for The Guardian newspaper articles and archives

NYT top stories, book reviews, archive articles, and movie reviews

Official Firebase Hacker News top stories, comments, and user profiles

Developer articles, published listings, tech tags, and community comments

Live spaceflight news, rocket launches, and aerospace articles

Reddit post feeds, comment trees, subreddits, and user karma data

Real-time and historical stock market quotes, forex, and crypto time series

Institutional-grade real-time market data, company fundamentals, and earnings

Global financial market data for equities, forex, indices, and crypto

Ultra low-latency US stock market, options, forex, and crypto feeds

Institutional financial datasets, stock prices, and corporate actions

Open-source currency exchange rate API tracking the European Central Bank

Fake online REST API for testing and prototyping client applications

Hosted REST API simulating user CRUD operations for frontend prototyping

HTTP request and response inspection service for testing HTTP clients

Concise, consistent, and legible SVG badges for GitHub READMEs

Robust online code execution engine supporting 60+ programming languages

Simple public IP address lookup API with universal CORS support

Online JSON storage, schema validation, and RESTful document API

Programmatic control over Vercel deployments, domains, edge middleware, and DNS

GitHub repositories, pull requests, issues, commits, and user profiles

GitLab DevOps platform, CI/CD pipelines, merge requests, and projects

Node package metadata, version dependencies, and download telemetry

Stack Overflow questions, answers, comments, and user badges

Query Wikipedia article summaries, search pages, and rich media

Free English dictionary API providing definitions, phonetics, and audio

Word finding query engine for synonyms, rhymes, and semantic adjectives

Internet Archive library book catalog, covers, authors, and ISBNs

Google Books search, volume details, author info, and reading previews

Project Gutenberg public domain e-book search and metadata catalog

Preprint scientific research repository across physics, CS, and math

Open catalog of global scholarly papers, authors, citations, and institutions

Community-driven trivia and multiple-choice quiz questions database

Open source quotations API delivering inspiring quotes tagged by author and topic

Classical poetry database with complete stanzas, sonnets, and poet bios

Complete scripture texts, verses, and chapters across multiple language translations

Al-Quran holy book verses, surahs, audio recitations, and multilingual translations

High accuracy neural machine translation API across 30+ world languages

Collaborative, free, and open database of global food products and barcodes

US Department of Agriculture nutrient database and food composition data

Culinary recipe search, nutrition analysis, and dietary meal planning

Open disease data API tracking global pandemic telemetry and health metrics

US FDA open public health data: drug approvals, recalls, and device events

Athlete fitness activities, GPS routes, segments, and performance telemetry

Health and fitness tracker telemetry: steps, heart rate, sleep, and workouts

Open recipe database with international meal photos, ingredients, and instructions

Comprehensive food and recipe search, ingredients, and meal planning

Culinary recipe search, nutrition analysis, and dietary meal planning

Collaborative, free, and open database of global food products and barcodes

Comprehensive cocktail and drink recipes database with glassware and ingredients

Public database of craft breweries, cideries, brewpubs, and bottleshops

Nutritional data and botanical facts for hundreds of fruits worldwide

Official NASA APIs for astronomy images, asteroid telemetry, and Mars photos

SpaceX rockets, dragon capsules, launch missions, and landing pads

Live International Space Station (ISS) location and astronaut count

Real-time International Space Station tracking and coordinate telemetry

Sunrise, sunset, dawn, dusk, and solar noon calculation engine

Live spaceflight news, rocket launches, and aerospace articles

European football leagues, live match scores, standings, and player fixtures

Comprehensive soccer data across 1,000+ leagues: live odds, stats, and lineups

Crowdsourced sports database with team logos, player photos, and league schedules

Free NBA statistics REST API providing player stats, games, and averages

Formula 1 historical championship standings, race results, and lap times

Official NHL ice hockey game scores, team rosters, and real-time player stats

Player rankings, live chess matches, tournaments, and club stats

Generates realistic random user profiles with avatar photos and fake data

Generates realistic mock data: companies, books, products, and users

Pseudo-real e-commerce store REST API for shopping cart prototyping

Easy to use placeholder images with custom dimensions and grayscale

Generates unique robot, monster, and alien avatars from any input text

Generates clean initial-letter avatar images from user names

Meat-themed gourmet placeholder text generator for web mockups

True random numbers generated via atmospheric noise sensors

Custom mock data generation tool for creating realistic test datasets

Card deck simulation and dealing REST API with shuffle support

The internet's biggest collection of open source dog pictures and breed lists

Cat pictures, cat breeds, facts, and image upload endpoints for developers

Random and educational facts about domestic cats and felines

Delivers humorous cat images representing standard HTTP status codes

High-definition random fox pictures and photographs

Unofficial MyAnimeList REST API: anime titles, manga, characters, and voice actors

Track anime and manga progress with community lists and ratings

Community manga reader platform and chapter metadata search

Community anime reaction images and GIFs categorized by mood and gesture

Open resource for Studio Ghibli films, characters, vehicles, and directors

Anime scene search by image: reverse search any anime screenshot to find the episode

The Met open collection: 470,000+ artwork images and cultural metadata

Open museum collection records, high-resolution images, and artists