300+ FREE APIs Every Developer Needs to Know

Reposted By Me

Table of Contents

1. Weather APIs ⛅️🌦️🌩️
2. Exchange Rates APIs 💱💲💹
3. Cryptocurrency APIs ₿💰🔗
4. Placeholder Image APIs 📸🖼️🎨
5. Random Generators APIs 🎲🔀🎰
6. News APIs 📰📢🗞️
7. Maps and Geolocation APIs 🗺️📍🌍
8. Search APIs 🔍📑🕵️
9. Machine Learning APIs 🤖🧠🔮
10. Screenshot and Picture APIs 📷🌐🖼️
11. SEO APIs 🔍📈💡
12. Shopping APIs 🛍️🛒📦
13. Developer APIs 💻🔧🛠️
14. Travel and Transportation APIs 🛫🚗🚉
15. Communication APIs 📞💬📧
16. Payment and Financial APIs 💳💸🏦
17. Analytics and Monitoring APIs 📊📈📉
18. Natural Language Processing (NLP) APIs 🗣️🔍💬
19. Utilities and Tools APIs 🛠️🔧⚙️
20. Government and Open Data APIs 🏛️📜📊
21. Qit.tools - ⚡ Interactive Online Web 🛠️ Tools
22. 💰 Currency Plugins/Widgets for WordPress

Weather APIs ⛅️🌦️🌩️

Name	Description	Free Tier Limit	Authentication	Documentation
OpenWeatherMap	Global weather data including forecasts and current weather	60 calls/min	API key	Link
Weatherstack	Real-time and historical weather data	1000 calls/month	API key	Link
Weatherbit	Weather data including forecasts and current weather	500 calls/day	API key	Link
Climacell	Hyper-local weather data and insights	100 calls/day	API key	Link
AccuWeather	Weather data and forecasts	50 calls/day	API key	Link
Visual Crossing	Historical and current weather data	1000 calls/day	API key	Link
Weather2020	Weather forecasts	100 calls/day	API key	Link
Storm Glass	Marine weather data	50 calls/day	API key	Link
WeatherAPI	Weather data including forecasts and current weather	1000 calls/month	API key	Link
AerisWeather	Weather data and imagery	1000 calls/month	API key	Link
HERE Weather	Weather data including forecasts and current weather	250,000 calls/month	API key	Link
World Weather Online	Global weather data including forecasts and historical weather	500 calls/day	API key	Link
Tomorrow.io	Hyper-local weather data and insights	100 calls/day	API key	Link
Dark Sky	Weather data including forecasts and current weather	1000 calls/day	API key	Link
National Weather Service	US government weather data	Unlimited	None	Link

Exchange Rates APIs 💱💲💹

Name	Description	Free Tier Limit	Authentication	Documentation
ExchangeRate-API	Accurate exchange rates for 160 currencies	1500 calls/month	API key	Link
Open Exchange Rates	Real-time and historical exchange rates	1000 calls/month	API key	Link
Currencylayer	Real-time exchange rates for 168 world currencies	1000 calls/month	API key	Link
Fixer	Real-time exchange rates and currency conversion	1000 calls/month	API key	Link
XE Currency Data	Real-time and historical exchange rates	1000 calls/month	API key	Link
Forex Rate API	Real-time and historical foreign exchange rates	1000 calls/month	API key	Link
RatesAPI	Free foreign exchange rates and currency conversion	Unlimited	None	Link
Exchange Rates API	Accurate exchange rates for 160 currencies	1500 calls/month	API key	Link
OANDA Exchange Rates	Real-time and historical exchange rates	1000 calls/month	API key	Link
CurrencyConverter API	Real-time exchange rates and currency conversion	1000 calls/month	API key	Link
ExchangeRatesAPI	Exchange rates and currency conversion	1000 calls/month	API key	Link
Alphavantage	Real-time and historical exchange rates	500 calls/day	API key	Link
Xignite	Foreign exchange rates API	1000 calls/month	API key	Link
Everbase Currency	Exchange rates and currency conversion	1000 calls/month	API key	Link
ExchangeRateHost	Foreign exchange rates API	Unlimited	None	Link

Cryptocurrency APIs ₿💰🔗

Name	Description	Free Tier Limit	Authentication	Documentation
CoinGecko	Cryptocurrency data for over 6000 coins	Unlimited	None	Link
CoinMarketCap	Cryptocurrency market cap rankings, charts, and more	333 calls/day	API key	Link
CryptoCompare	Cryptocurrency data and price comparison	250,000 calls/month	API key	Link
Coinpaprika	Cryptocurrency market data	25,000 calls/month	API key	Link
Nomics	Cryptocurrency market cap and pricing data	125,000 calls/month	API key	Link
CoinAPI	Real-time and historical cryptocurrency data	100,000 calls/month	API key	Link
Messari	Cryptocurrency data and research	1000 calls/day	API key	Link
Coinlore	Cryptocurrency market data	Unlimited	None	Link
Coinlib	Cryptocurrency data including prices and market cap	100 requests/day	API key	Link
Bitfinex	Cryptocurrency trading platform API	Unlimited	None	Link
Bittrex	Cryptocurrency trading platform API	Unlimited	None	Link
Binance	Cryptocurrency trading platform API	Unlimited	None	Link
KuCoin	Cryptocurrency trading platform API	Unlimited	None	Link
Kraken	Cryptocurrency trading platform API	Unlimited	None	Link
Poloniex	Cryptocurrency trading platform API	Unlimited	None	Link

Placeholder Image APIs 📸🖼️🎨

Name	Description	Free Tier Limit	Authentication	Documentation
Lorem Picsum	Random placeholder images	Unlimited	None	Link
Placeholder.com	Custom placeholder images	Unlimited	None	Link
Unsplash Source	High-quality placeholder images	Unlimited	None	Link
Placekitten	Placeholder images of kittens	Unlimited	None	Link
PlaceDog	Placeholder images of dogs	Unlimited	None	Link
Placebear	Placeholder images of bears	Unlimited	None	Link
Fill Murray	Placeholder images of Bill Murray	Unlimited	None	Link
FakerAPI	Fake data and placeholder images	Unlimited	None	Link
DummyImage.com	Custom placeholder images	Unlimited	None	Link
ImagePlaceholder.com	Custom placeholder images	Unlimited	None	Link
PlaceholderImage	Placeholder images with custom text	Unlimited	None	Link
Picsum.photos	Random images from Unsplash	Unlimited	None	Link
RandomImageApi	Random placeholder images	Unlimited	None	Link
Plachold.it	Custom placeholder images	Unlimited	None	Link
LoremFlickr	Random placeholder images	Unlimited	None	Link

Random Generators APIs 🎲🔀🎰

Name	Description	Free Tier Limit	Authentication	Documentation
Random.org	True random number generation	1,000,000 bits/day	API key	Link
RandomUser	Generate random user data	Unlimited	None	Link
FakerAPI	Fake data generation	Unlimited	None	Link
UUID Generator	Generate random UUIDs	Unlimited	None	Link
DiceBear Avatars	Generate random avatars	Unlimited	None	Link
PasswordGenerator	Generate random passwords	Unlimited	None	Link
Cat Facts	Random cat facts	Unlimited	None	Link
Fun Translations	Generate fun translations	5 requests/day	None	Link
Quotes.rest	Generate random quotes	10 requests/hour	None	Link
Advice Slip	Random advice generator	Unlimited	None	Link
BoredAPI	Suggestions for activities to do	Unlimited	None	Link
Lorem Ipsum	Generate random placeholder text	Unlimited	None	Link
Uinames	Generate random names	Unlimited	None	Link
Pipl	Generate random people profiles	Unlimited	None	Link
Random Data API	Generate random data for testing	Unlimited	None	Link

News APIs 📰📢🗞️

Name	Description	Free Tier Limit	Authentication	Documentation
NewsAPI	Aggregates news articles from various sources	500 calls/day	API key	Link
CurrentsAPI	Real-time news data	1000 calls/month	API key	Link
ContextualWebNews	Real-time news search and discovery	10,000 calls/month	API key	Link
Bing News Search	Microsoft Bing's news search results	3000 calls/month	API key	Link
Mediastack	Real-time news data	500 calls/month	API key	Link
New York Times API	Access to The New York Times articles and archives	Unlimited	API key	Link
Guardian API	Access to The Guardian articles and archives	Unlimited	API key	Link
Event Registry	Real-time news and event data	500 calls/month	API key	Link
GDELT Project	Real-time event data and news	10,000 calls/month	API key	Link
NewsData.io	Real-time news articles from various sources	200 calls/day	API key	Link
ContextualWeb	Search for news articles based on context	1000 calls/month	API key	Link
MyNewsAPI	Access to various news sources	500 calls/month	API key	Link
Webz.io	Real-time news and blog data	1000 calls/month	API key	Link
AYLIEN News API	News articles from various sources with analysis	200 calls/day	API key	Link
HackerNews	Access to Hacker News articles	Unlimited	None	Link

Maps and Geolocation APIs 🗺️📍🌍

Name	Description	Free Tier Limit	Authentication	Documentation
Google Maps API	Comprehensive mapping and geolocation data	$200 free usage/month	API key	Link
Mapbox	Custom maps and geolocation services	50,000 views/month	API key	Link
OpenCage Geocoding	Forward and reverse geocoding	2,500 calls/day	API key	Link
HERE Maps	Mapping and location data services	250,000 calls/month	API key	Link
OpenStreetMap	Free editable map of the world	Unlimited	None	Link
Positionstack	Geocoding API for forward and reverse geocoding	25,000 calls/month	API key	Link
TomTom	Mapping and geolocation data services	2,500 calls/day	API key	Link
MapQuest	Mapping and geolocation data services	15,000 calls/month	API key	Link
Ipstack	IP geolocation API	10,000 calls/month	API key	Link
Geocodio	Geocoding and reverse geocoding	2,500 calls/day	API key	Link
LocationIQ	Geocoding and reverse geocoding	5,000 calls/day	API key	Link
Maptiler	Maps, geocoding, and geolocation services	100,000 tile requests/month	API key	Link
What3words	Location services using 3-word addresses	1000 calls/month	API key	Link
SmartyStreets	Address validation and geocoding	250 requests/month	API key	Link
Geoapify	Geocoding, routing, and other location services	30,000 requests/month	API key	Link

Search APIs 🔍📑🕵️

Name	Description	Free Tier Limit	Authentication	Documentation
Google Custom Search	Search the web or specific sites	100 queries/day	API key	Link
Algolia	Fast, reliable search as a service	10,000 records	API key	Link
Bing Search API	Microsoft Bing's search results	3,000 calls/month	API key	Link
Elastic Search	Search engine based on Lucene	Free tier available	API key	Link
Swiftype	Custom search engine for your site	1000 requests/month	API key	Link
MeiliSearch	Fast, open-source search engine	Unlimited	None	Link
AddSearch	Custom search for your website	50 searches/day	API key	Link
Yandex Search API	Search the web using Yandex	10,000 requests/day	API key	Link
Yahoo Search	Search the web using Yahoo	5,000 queries/day	API key	Link
Wolfram Alpha	Computational knowledge engine	2,000 queries/month	API key	Link
ContextualWebSearch	Web search with context filtering	10,000 calls/month	API key	Link
Site Search 360	Search your website or app	1,500 requests/month	API key	Link
DuckDuckGo API	Search the web anonymously	Unlimited	None	Link
Search.io	Search as a service	1000 operations/month	API key	Link
Apache Solr	Highly reliable, scalable search platform	Open-source	None	Link

Machine Learning APIs 🤖🧠🔮

Name	Description	Free Tier Limit	Authentication	Documentation
Google Cloud ML	Machine learning services and APIs	$300 free credit	API key	Link
Amazon SageMaker	Build, train, and deploy machine learning models	Free tier available	API key	Link
IBM Watson	AI and machine learning services	Free tier available	API key	Link
Microsoft Azure ML	Machine learning services and APIs	$200 free credit	API key	Link
Hugging Face	State-of-the-art NLP models and APIs	Free tier available	API key	Link
OpenAI	AI models including GPT-3	Free tier available	API key	Link
BigML	Machine learning platform and APIs	Free tier available	API key	Link
Clarifai	Image and video recognition services	Free tier available	API key	Link
DataRobot	Machine learning model deployment and management	Free tier available	API key	Link
MonkeyLearn	Text analysis and machine learning	300 queries/month	API key	Link
Aylien	Natural language processing and machine learning	Free tier available	API key	Link
Algorithmia	Algorithm marketplace and machine learning APIs	10,000 queries/month	API key	Link
Spell	Machine learning infrastructure and tools	Free tier available	API key	Link
Neptune.ai	Machine learning model management and monitoring	Free tier available	API key	Link
Vize.ai	Custom machine learning model creation	Free tier available	API key	Link

Screenshot and Picture APIs 📷🌐🖼️

Name	Description	Free Tier Limit	Authentication	Documentation
ScreenshotAPI	Capture screenshots of websites	100 screenshots/month	API key	Link
URLBox	Capture screenshots and convert web pages to PDFs	100 captures/month	API key	Link
Page2Images	Capture screenshots of web pages	1000 screenshots/month	API key	Link
ShrinkTheWeb	Capture screenshots and thumbnails of web pages	1000 captures/month	API key	Link
Browshot	Capture screenshots of websites	1000 credits/month	API key	Link
Thumbnail.ws	Capture screenshots of websites	500 screenshots/month	API key	Link
Urlbox	Capture screenshots of websites	1000 captures/month	API key	Link
ScreenshotLayer	Capture screenshots of websites	100 captures/month	API key	Link
ApiFlash	Capture screenshots of websites	100 screenshots/month	API key	Link
AbstractAPI Screenshot	Capture screenshots of websites	100 screenshots/month	API key	Link
Snapito	Capture screenshots of websites	100 captures/month	API key	Link
Website2PDF	Convert web pages to PDFs	100 captures/month	API key	Link
ScreenshotMachine	Capture screenshots of websites	1000 screenshots/month	API key	Link
Stillio	Automatic website screenshot capture	1000 captures/month	API key	Link
GemPixel	Capture screenshots of websites	100 captures/month	API key	Link

SEO APIs 🔍📈💡

Name	Description	Free Tier Limit	Authentication	Documentation
Moz	SEO metrics and data	100 requests/month	API key	Link
SEMrush	SEO metrics and data	100 requests/month	API key	Link
Serpstat	SEO metrics and data	1000 queries/day	API key	Link
SpyFu	SEO metrics and competitor analysis	500 requests/month	API key	Link
DataForSEO	SEO data for keywords, SERPs, and more	100 requests/month	API key	Link
CognitiveSEO	SEO metrics and data	1000 requests/month	API key	Link
Majestic	SEO metrics and data	100 requests/month	API key	Link
SERP API	Real-time search engine results	1000 requests/month	API key	Link
RankRanger	SEO metrics and rank tracking	1000 requests/month	API key	Link
Seobility	SEO metrics and data	1000 requests/month	API key	Link
BrightLocal	Local SEO data and metrics	1000 requests/month	API key	Link
SearchMetrics	SEO metrics and data	1000 requests/month	API key	Link
STAT	Real-time search engine results	1000 requests/month	API key	Link
Linkody	Backlink checker and SEO metrics	1000 requests/month	API key	Link

Shopping APIs 🛍️🛒📦

Name	Description	Free Tier Limit	Authentication	Documentation
Amazon Product Advertising API	Access to Amazon product data	1,000 requests/month	API key	Link
eBay API	Access to eBay product data and marketplace	5,000 requests/day	API key	Link
Walmart API	Access to Walmart product data and marketplace	5,000 requests/day	API key	Link
Best Buy API	Access to Best Buy product data	5,000 requests/day	API key	Link
Etsy API	Access to Etsy product data and marketplace	5,000 requests/day	API key	Link
Rakuten API	Access to Rakuten product data and marketplace	5,000 requests/day	API key	Link
Shopify API	Access to Shopify store data and marketplace	Unlimited	API key	Link
WooCommerce API	Access to WooCommerce store data and marketplace	Unlimited	API key	Link
BigCommerce API	Access to BigCommerce store data and marketplace	Unlimited	API key	Link
AliExpress API	Access to AliExpress product data and marketplace	1,000 requests/day	API key	Link
Zalando API	Access to Zalando product data and marketplace	5,000 requests/day	API key	Link
Target API	Access to Target product data and marketplace	1,000 requests/day	API key	Link
Flipkart API	Access to Flipkart product data and marketplace	5,000 requests/day	API key	Link
Costco API	Access to Costco product data and marketplace	5,000 requests/day	API key	Link
Home Depot API	Access to Home Depot product data and marketplace	5,000 requests/day	API key	Link

Developer APIs 💻🔧🛠️

Name	Description	Free Tier Limit	Authentication	Documentation
GitHub API	Access to GitHub data	Unlimited	OAuth	Link
GitLab API	Access to GitLab data	Unlimited	OAuth	Link
Bitbucket API	Access to Bitbucket data	Unlimited	OAuth	Link
Travis CI API	Access to Travis CI data	Unlimited	API key	Link
Jenkins API	Access to Jenkins data	Unlimited	API key	Link
CircleCI API	Access to CircleCI data	Unlimited	API key	Link
GitKraken API	Access to GitKraken data	Unlimited	API key	Link
Heroku API	Access to Heroku data and services	Unlimited	OAuth	Link
Vercel API	Access to Vercel data and services	Unlimited	API key	Link
Netlify API	Access to Netlify data and services	Unlimited	OAuth	Link
Firebase API	Access to Firebase data and services	Unlimited	API key	Link
DigitalOcean API	Access to DigitalOcean data and services	Unlimited	OAuth	Link
AWS API	Access to AWS data and services	Free tier available	API key	Link
Azure API	Access to Azure data and services	Free tier available	API key	Link
Google Cloud API	Access to Google Cloud data and services	$300 free credit	API key	Link

Travel and Transportation APIs 🛫🚗🚉

Name	Description	Free Tier Limit	Authentication	Documentation
Skyscanner API	Access to flight search and booking data	500 requests/day	API key	Link
Amadeus API	Access to travel booking and search data	500 calls/day	API key	Link
Google Flights API	Access to flight search and booking data	1000 requests/day	API key	Link
Rome2Rio API	Access to multimodal travel search data	1000 requests/day	API key	Link
Sabre API	Access to travel booking and search data	500 requests/day	API key	Link
Kayak API	Access to flight and hotel search data	500 requests/day	API key	Link
Expedia API	Access to travel booking and search data	500 requests/day	API key	Link
Priceline API	Access to travel booking and search data	500 requests/day	API key	Link
TripAdvisor API	Access to travel reviews and search data	500 requests/day	API key	Link
Airbnb API	Access to short-term rental data	500 requests/day	API key	Link
Lyft API	Access to ride-sharing data	1000 requests/day	API key	Link
Uber API	Access to ride-sharing data	1000 requests/day	API key	Link
BlaBlaCar API	Access to carpooling data	500 requests/day	API key	Link
Yelp API	Access to business and review data	5000 requests/day	API key	Link
TransportAPI	Access to public transport data	1000 requests/day	API key	Link

Communication APIs 📞💬📧

Name	Description	Free Tier Limit	Authentication	Documentation
Twilio API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
SendGrid API	Access to email sending services	100 emails/day	API key	Link
Mailgun API	Access to email sending services	5,000 emails/month	API key	Link
Nexmo API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
Plivo API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
Pusher API	Real-time communication services	Free tier available	API key	Link
Postmark API	Access to email sending services	100 emails/month	API key	Link
SignalWire API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
Mandrill API	Access to email sending services	2,000 emails/month	API key	Link
ClickSend API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
Tropo API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
Slack API	Access to Slack messaging services	Free tier available	API key	Link
Discord API	Access to Discord messaging services	Free tier available	API key	Link
Zoom API	Access to Zoom video conferencing services	Free tier available	API key	Link
Intercom API	Access to Intercom messaging services	Free tier available	API key	Link

Payment and Financial APIs 💳💸🏦

Name	Description	Free Tier Limit	Authentication	Documentation
Stripe API	Access to payment processing services	Free tier available	API key	Link
PayPal API	Access to payment processing services	Free tier available	API key	Link
Square API	Access to payment processing services	Free tier available	API key	Link
Braintree API	Access to payment processing services	Free tier available	API key	Link
Authorize.net API	Access to payment processing services	Free tier available	API key	Link
Plaid API	Access to financial data and services	Free tier available	API key	Link
Dwolla API	Access to payment processing services	Free tier available	API key	Link
Wise API	Access to international money transfer services	Free tier available	API key	Link
Worldpay API	Access to payment processing services	Free tier available	API key	Link
WePay API	Access to payment processing services	Free tier available	API key	Link
Revolut API	Access to financial data and services	Free tier available	API key	Link
Xero API	Access to accounting and financial data	Free tier available	API key	Link
QuickBooks API	Access to accounting and financial data	Free tier available	API key	Link
Yodlee API	Access to financial data and services	Free tier available	API key	Link
Intuit API	Access to accounting and financial data	Free tier available	API key	Link

Analytics and Monitoring APIs 📊📈📉

Name	Description	Free Tier Limit	Authentication	Documentation
Google Analytics API	Access to Google Analytics data	Free tier available	API key	Link
Mixpanel API	Access to Mixpanel analytics data	Free tier available	API key	Link
Amplitude API	Access to Amplitude analytics data	Free tier available	API key	Link
Hotjar API	Access to Hotjar analytics data	Free tier available	API key	Link
Heap API	Access to Heap analytics data	Free tier available	API key	Link
Piwik PRO API	Access to Piwik PRO analytics data	Free tier available	API key	Link
Segment API	Access to Segment analytics data	Free tier available	API key	Link
Crazy Egg API	Access to Crazy Egg analytics data	Free tier available	API key	Link
Woopra API	Access to Woopra analytics data	Free tier available	API key	Link
Kissmetrics API	Access to Kissmetrics analytics data	Free tier available	API key	Link
Clicky API	Access to Clicky analytics data	Free tier available	API key	Link
Open Web Analytics API	Access to Open Web Analytics data	Free tier available	API key	Link
Yandex Metrica API	Access to Yandex Metrica analytics data	Free tier available	API key	Link
StatCounter API	Access to StatCounter analytics data	Free tier available	API key	Link
Chartbeat API	Access to Chartbeat analytics data	Free tier available	API key	Link

Natural Language Processing (NLP) APIs 🗣️🔍💬

Name	Description	Free Tier Limit	Authentication	Documentation
Google Cloud NLP	Natural language processing services	$300 free credit	API key	Link
IBM Watson NLP	Natural language processing services	Free tier available	API key	Link
Microsoft Azure NLP	Natural language processing services	$200 free credit	API key	Link
Amazon Comprehend	Natural language processing services	Free tier available	API key	Link
TextRazor	Natural language processing services	5000 requests/month	API key	Link
Aylien NLP	Natural language processing services	Free tier available	API key	Link
MonkeyLearn	Text analysis and natural language processing	300 queries/month	API key	Link
MeaningCloud	Text analysis and natural language processing	20,000 requests/month	API key	Link
Algorithmia NLP	Natural language processing algorithms	10,000 queries/month	API key	Link
Wit.ai	Natural language processing and chatbot integration	Free tier available	API key	Link
Lexalytics	Text analysis and natural language processing	Free tier available	API key	Link
SapienAPI	Natural language processing services	Free tier available	API key	Link
ChatterBot	Natural language processing and chatbot integration	Free tier available	None	Link
TisaneAPI	Text analysis and natural language processing	30,000 requests/month	API key	Link
DeepAI Text API	Natural language processing services	Free tier available	API key	Link

Utilities and Tools APIs 🛠️🔧⚙️

Name	Description	Free Tier Limit	Authentication	Documentation
IPinfo	IP address information and geolocation	50,000 requests/month	API key	Link
OpenWeatherMap	Weather data including forecasts and current weather	60 calls/min	API key	Link
Twilio API	Access to SMS, voice, and messaging services	Free tier available	API key	Link
SendGrid API	Access to email sending services	100 emails/day	API key	Link
Clearbit API	Business intelligence data	50,000 requests/month	API key	Link
IPStack	IP geolocation and information	10,000 requests/month	API key	Link
AbstractAPI	Various utility APIs like IP geolocation, email validation	500 requests/month	API key	Link
Apify API	Web scraping and automation	10,000 requests/month	API key	Link
ScraperAPI	Web scraping tool	5000 requests/month	API key	Link
Postman API	API development and testing tools	Unlimited	API key	Link
Sentry API	Application monitoring and error tracking	5000 events/month	API key	Link
Stripe API	Access to payment processing services	Free tier available	API key	Link
PDF.co API	PDF generation and data extraction	1000 requests/month	API key	Link
Bitly API	URL shortening and link management	1000 requests/month	API key	Link
OpenCage Geocoding	Forward and reverse geocoding	2,500 calls/day	API key	Link

Government and Open Data APIs 🏛️📜📊

Name	Description	Free Tier Limit	Authentication	Documentation
Data.gov API	US government open data	Unlimited	None	Link
UK Government API	UK government open data	Unlimited	None	Link
EU Open Data Portal API	European Union open data	Unlimited	None	Link
World Bank API	Global development data	Unlimited	None	Link
UN Data API	United Nations open data	Unlimited	None	Link
OECD Data API	Economic and social data from OECD	Unlimited	None	Link
Census.gov API	US Census Bureau data	Unlimited	API key	Link
Open Data Soft	Various open data from different sources	Unlimited	API key	Link
City of New York API	New York City open data	Unlimited	None	Link
USGS API	US Geological Survey data	Unlimited	API key	Link
NASA API	Access to NASA data and imagery	Unlimited	API key	Link
Open States API	US state legislative data	Unlimited	API key	Link
USA.gov API	US government information and services	Unlimited	None	Link
Data.gov.au API	Australian government open data	Unlimited	None	Link
HealthData.gov API	US health-related open data	Unlimited	None	Link
Gov.br API	Brazil	Unlimited	None	Link

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Comments

[George WL]

Excellent job copypasting

[carban]

Great list! thank you to share this collection. Very useful.
I would like to add FooAPI an API I'm developing

[Adam]

Feels a bit random to me.

[M.X]

Hey can you add also forkapi to the list.
-> github.com/mikebgrep/forkapi
Is recipe managment api relased before a 2 month ago.OpenAI integration is comming with new functionality for the api.

[Dev Studio]

Really a great article

[Valt aoi]

NICE WORK

[Firacode]

Thanks for sharing.