Free 148 API Open Public APIs No Auth Needed in One List

Are you looking for some free and open public APIs that you can use for testing, learning, or building your own apps? If so, you’re in luck. There are many APIs out there that offer a variety of data and services without requiring any authentication or key. In this article, we’ll introduce you to some of the best ones and show you how to access them.

What is an API?

An API (Application Programming Interface) is a way for different software applications to communicate with each other. An API defines how a client (such as a web browser, a mobile app, or a spreadsheet) can request data or services from a server (such as a website, a database, or a cloud service).

 

For example, when you use a weather app on your phone, the app sends an API request to a weather service provider (such as Weather.com) and receives an API response with the current weather data. The app then displays the data in a user-friendly format on your screen.

APIs are useful because they allow developers to access and use data and services from other sources without having to create them from scratch. They also enable interoperability and integration between different applications and platforms.

What is a free and open public API?

A free and open public API is an API that anyone can access and use without any restrictions or requirements. You don’t need to register, sign up, or obtain an API key to use these APIs. You just need to know the URL (Uniform Resource Locator) of the API endpoint and the parameters (if any) that you need to specify in your request.

Free and open public APIs are great for beginners who want to learn how APIs work and practice their skills. They are also helpful for web developers who want to test their code or prototype their ideas with real data. And they are fun for anyone who wants to explore different types of data and services available on the web.

How to use free and open public APIs?

There are many ways to use free and open public APIs depending on your needs and preferences. Here are some common methods:

• Web browser: You can simply type or paste the URL of the API endpoint in your web browser’s address bar and hit enter. You will see the API response in JSON (JavaScript Object Notation) format, which is a standard way of representing data in APIs. JSON is easy to read and parse by humans and machines.

• Coding language: You can use any modern coding language (such as Python, JavaScript, Ruby, etc.) that supports HTTP requests to send an API request and receive an API response. You will need to write some code to handle the request parameters, headers, errors, etc., as well as parse and process the JSON response.

• cURL: You can use cURL, which is a command-line tool for transferring data using various protocols (such as HTTP), to send an API request and receive an API response. You will need to type some commands in your terminal or console window with the appropriate options and flags.

• No-code API clients: You can use no-code API clients, which are graphical user interface (GUI) tools that allow you to interact with APIs without writing any code. Some examples are Swagger UI, Postman, Insomnia, etc. These tools let you enter the URL of the API endpoint and the parameters (if any) in a form-like interface and display the JSON response in a formatted way. They also provide features such as documentation, testing, debugging, etc.

• Google Sheets: You can use Google Sheets, which is a cloud-based spreadsheet application that supports custom functions written in JavaScript using Google Apps Script. One of these custom functions is IMPORTJSON(), which allows you to import JSON data from any URL into your spreadsheet cells. You can also use Apipheny, which is an add-on for Google Sheets that lets you connect any API to Google Sheets without coding.

Best Big List of Free Open Public APIs

To help you get started with using free open public APIs, we have compiled a list of some of the most useful, fun, and interesting ones that you can try out right now. We have categorized them by topic and provided sample URLs for each one. You can click on these URLs to see the JSON responses or copy them to use them with your preferred method.

CATEGORY	API NAME	DESCRIPTION	SAMPLE URL
1	Animals	Dogs	Free api for Random dog images	Click Here
2	Animals	HTTP Cats	Free api for Cat images for HTTP status codes	Click Here
3	Animals	Pixel Encounter	Free api for SVG Monsters	Click Here
4	Animals	Placekitten	Free api for Placeholder kitten images	Click Here
5	Animals	Random Big Cats	Free api for Random pictures of big cats	Click Here
6	Animals	Random Dogs	Free api for Random dog images	Click Here
7	API Directories	APIs.guru	Free api for OpenAPI API directory	Click Here
8	API Directories	Public APIs	Free api for List of public APIs	Click Here
9	Calendar	Nager.Date	Free api for Public holidays	Click Here
10	Calendar	UK Bank Holidays	Free api for UK bank holidays	Click Here
11	Content	4chan	Free api for 4chan's read-only API	Click Here
12	Content	Chronicling America	Free api for Historic US newspapers	Click Here
13	Content	Datamuse	Free api for Query words matching conditions	Click Here
14	Content	HackerNews	Free api for Hacker News API	Click Here
15	Content	Jikan	Free api for Unofficial MyAnimeList API	Click Here
16	Content	Listly	Free api for Top 10 lists	Click Here
17	Content	Mediawiki	Free api for Wikipedia page content and revisions	Click Here
18	Content	Reddit	Free api for Public content from Reddit	Click Here
19	Content	Reddit Stocks	Free api for Top stocks from Wallstreetbets	Click Here
20	Content	Rick and Morty API	Free api for Rick and Morty characters	Click Here
21	Content	Star Wars API	Free api for Star Wars information	Click Here
22	Content	TVMaze	Free api for TV show information	Click Here
23	Content	WordPress	Free api for Public posts from any WordPress site	Click Here
24	Crypto & Finance	Binance	Free api for 24 hr crypto data	Click Here
25	Crypto & Finance	CoinBase	Free api for Currency codes and names	Click Here
26	Crypto & Finance	CoinCap	Free api for Real time cryptocurrency prices	Click Here
27	Crypto & Finance	CoinDesk	Free api for Bitcoin price index	Click Here
28	Crypto & Finance	CoinGecko	Free api for Cryptocurrency market data	Click Here
29	Crypto & Finance	CoinLore	Free api for Cryptocurrency market data	Click Here
30	Crypto & Finance	CoinMap	Free api for Crypto ATMs	Click Here
31	Crypto & Finance	Coinpaprika	Free api for Cryptocurrency data	Click Here
32	Crypto & Finance	CoinStats	Free api for Cryptocurrency market data	Click Here
33	Crypto & Finance	CryptingUp	Free api for Cryptocurrency data	Click Here
34	Crypto & Finance	Currency Rates	Free api for Currency exchange rates	Click Here
35	Crypto & Finance	DEX Screener	Free api for Blockchain screener	Click Here
36	Crypto & Finance	Exchangerate	Free api for Currency exchange & crypto rates	Click Here
37	Crypto & Finance	ExchangeRate-API	Free api for Exchange rates	Click Here
38	Crypto & Finance	Gemini	Free api for Cryptocurrency market data	Click Here
39	Crypto & Finance	Kraken	Free api for Crypto data	Click Here
40	Crypto & Finance	KuCoin	Free api for Crypto data	Click Here
41	Crypto & Finance	NBP Web API	Free api for Currency exchange rates and gold prices	Click Here
42	Crypto & Finance	Nexchange	Free api for Cryptocurrency market data	Click Here
43	Crypto & Finance	OpenSea	Free api for NFTs	Click Here
44	Crypto & Finance	Razorpay IFSC	Free api for Indian Financial Systems Codes	Click Here
45	Crypto & Finance	WazirX	Free api for Crypto data	Click Here
46	Developer Tools	Agify	Free api for Predict age based on a name	Click Here
47	Developer Tools	APIC Agent	Free api for Detect browser, OS, and device from user agent	Click Here
48	Developer Tools	Ciprand	Free api for Generate random strings	Click Here
49	Developer Tools	Cloudflare Trace	Free api for Get IP address, user agent, etc	Click Here
50	Developer Tools	Digital Ocean Status	Free api for DigitalOcean status	Click Here
51	Developer Tools	Domainsdb	Free api for Search registered domain names	Click Here
52	Developer Tools	Favicon Grabber	Free api for Get the favicon for any site	Click Here
53	Developer Tools	Genderize.io	Free api for Predict gender based on a name	Click Here
54	Developer Tools	goQR	Free api for Create and read QR codes	Click Here
55	Developer Tools	HTTPBin	Free api for Inspect user agent and headers	Click Here
56	Developer Tools	Image-Charts	Free api for Chart images	Click Here
57	Developer Tools	IPify	Free api for Get public IP address	Click Here
58	Developer Tools	JSONPlaceholder	Free api for Fake REST API for testing	Click Here
59	Developer Tools	Microlink	Free api for Retrieve metadata and screenshots from any URL	Click Here
60	Developer Tools	Nationalize.io	Free api for Predict nationality based on a name	Click Here
61	Developer Tools	QuickChart	Free api for Generate charts on-the-fly	Click Here
62	Developer Tools	RandomUser	Free api for Fake user data generator	Click Here
63	Developer Tools	Reqres	Free api for Generate fake data for testing	Click Here
64	Developer Tools	REST API	Free api for Rest API for testing	Click Here
65	Developer Tools	Serialif Color	Free api for Get colors in different formats	Click Here
66	Food & Drink	Cocktail Database	Free api for Cocktail recipes	Click Here
67	Food & Drink	Open Brewery DB	Free api for Breweries	Click Here
68	Food & Drink	Open Food Facts	Free api for Data on food products	Click Here
69	Food & Drink	PunkAPI	Free api for Beer recipes	Click Here
70	Food & Drink	Recipe Puppy	Free api for Recipe database	Click Here
71	Food & Drink	Whisky Hunter	Free api for Whisky auctions	Click Here
72	Fun	AmiiboAPI	Free api for Nintendo Amiibo database	Click Here
73	Fun	Animal Crossing: New Horizons	Free api for Animal Crossing data	Click Here
74	Fun	Barter	Free api for Digital game libraries, wishlists and tradables	Click Here
75	Fun	Board Game Geek	Free api for Board games	Click Here
76	Fun	Bored	Free api for Activity suggestions	Click Here
77	Fun	CheapShark	Free api for Price comparison for digital games	Click Here
78	Fun	Chuck Norris Jokes	Free api for Chuck Norris facts	Click Here
79	Fun	Evil Insult Generator	Free api for Generate insults	Click Here
80	Fun	Imgflip	Free api for Popular memes	Click Here
81	Fun	JokeAPI	Free api for Jokes	Click Here
82	Fun	xkcd	Free api for xkcd comics	Click Here
83	Geo	Adresse	Free api for French addresses and geocoding	Click Here
84	Geo	Country.is	Free api for Lookup country by IP address	Click Here
85	Geo	Geocode	Free api for Forward/reverse geocoding	Click Here
86	Geo	GeoJS	Free api for Geolocation by IP address	Click Here
87	Geo	geoPlugin	Free api for Currency conversion and geolocation data	Click Here
88	Geo	GetTheData	Free api for UK geo coordinates conversion	Click Here
89	Geo	HelloSalut	Free api for Translate "hello" by IP address	Click Here
90	Geo	Hong Kong GeoData Store	Free api for Hong Kong geo data	Click Here
91	Geo	ipapi	Free api for Geolocation by IP address	Click Here
92	Geo	IPGeo	Free api for Geolocation by IP address	Click Here
93	Geo	Nominatum	Free api for Locations and addresses	Click Here
94	Geo	Open Topo Data	Free api for Determine elevation for lat/long	Click Here
95	Geo	Postcodes	Free api for UK geo data by postcode	Click Here
96	Geo	ViaCEP	Free api for Brazil's postal address codes (CEPs)	Click Here
97	Geo	Zippopotamus	Free api for Zip code information for 60 countries	Click Here
98	Geo	Ziptastic	Free api for US geo data by zipcode	Click Here
99	Government	Banco Central Do Brasil	Free api for Brazil Central Bank data	Click Here
100	Government	Belgian Open Data Initiative	Free api for Belgian government open data	Click Here
101	Government	Brasil	Free api for Brazil public data	Click Here
102	Government	CiviX	Free api for Law and bylaw content of British Columbia	Click Here
103	Government	Colorado Information Marketplace	Free api for Colorado state open data	Click Here
104	Government	Data USA	Free api for US public data	Click Here
105	Government	Data.gov.au	Free api for Australian government open data	Click Here
106	Government	Dawum	Free api for German election polls	Click Here
107	Government	FBI Wanted	Free api for FBI Wanted data	Click Here
108	Government	Federal Register	Free api for Daily journal of the US government	Click Here
109	Government	Food Standards Agency	Free api for UK restaurant hygiene ratings	Click Here
110	Government	NYC Open Data	Free api for New York City open data	Click Here
111	Government	Open Data DC	Free api for Washington DC open data	Click Here
112	Government	Open Government, Canada	Free api for Canadian government open data	Click Here
113	Government	United States Census	Free api for US census data	Click Here
114	Government	USPTO	Free api for US Patent and Trademark Office	Click Here
115	Health	HealthCare.gov	Free api for US health insurance data	Click Here
116	Health	Makeup	Free api for Makeup brands and product info	Click Here
117	Health	NPPES	Free api for US health care providers	Click Here
118	Health	Open Disease	Free api for Covid-19 and influenza stats	Click Here
119	Health	openFDA	Free api for Food & Drug Administration data (US)	Click Here
120	Language	Chinese Character Web	Free api for Information about Chinese characters	Click Here
121	Language	Chinese Text Project	Free api for Digital library for pre-modern Chinese texts	Click Here
122	Language	Free Dictionary	Free api for Word definitions and phonetics	Click Here
123	Language	PurgoMalum	Free api for Check content for profanity	Click Here
124	Music	Binary Jazz	Free api for Fetch a random genre	Click Here
125	Music	iTunes Search	Free api for iTunes content	Click Here
126	Music	MusicBrainz	Free api for Music data	Click Here
127	Music	Openwhyd	Free api for Playlists from various streaming platforms	Click Here
128	Open Data	Archive.org	Free api for Large public digital archive	Click Here
129	Open Data	House Stock Watcher	Free api for Congress members' stock transactions	Click Here
130	Open Data	Open Library	Free api for Information about books	Click Here
131	Open Data	Teleport	Free api for Location and quality of life data	Click Here
132	Open Data	Universities List	Free api for Universities	Click Here
133	Open Data	Wayback Machine	Free api for Internet archive availability	Click Here
134	Open Data	Wikipedia	Free api for Pageview stats	Click Here
135	Science	Astronomy Picture	Free api for Daily astronomy pictures	Click Here
136	Science	Numbers API	Free api for Facts about numbers	Click Here
137	Science	Spaceflight News	Free api for Spaceflight related news	Click Here
138	Science	SunriseSunset	Free api for Sunrise and sunset times	Click Here
139	Sports	Balldontlie	Free api for NBA players, teams, games, stats	Click Here
140	Sports	CityBikes	Free api for Bike sharing networks	Click Here
141	Sports	Ergast F1	Free api for Motor racing data	Click Here
142	Sports	Football-Data	Free api for Football (soccer) competitions and data	Click Here
143	Sports	nhlapi	Free api for NHL data	Click Here
144	Weather	7Timer!	Free api for Weather forecasts for astronomy	Click Here
145	Weather	Aviation Weather Center	Free api for Aviation Digital Data Service (ADDS) data	Click Here
146	Weather	openSenseMap	Free api for Personal senseBox (weather station) data	Click Here
147	Weather	SG Weather	Free api for Realtime weather readings for Singapore	Click Here
148	Weather	wttr	Free api for Console-oriented weather forecast service	Click Here

 

FAQs

 

• What is an API?

• An API (Application Programming Interface) is a way for different applications or systems to communicate with each other by exchanging data or commands.

• What is a free and open public API?

• A free and open public API is an API that does not require any authentication, authorization, or payment to access its data or functionality. Anyone can use these APIs without any restrictions or limitations.

• Why use free and open public APIs? Free and open public APIs are useful for various purposes, such as:

  • Learning how to use APIs and practice coding skills
  • Testing different API methods and responses
  • Accessing sample data sets for web development or data analysis
  • Building prototypes or demos of apps or websites
  • Enhancing existing apps or websites with additional features or content

• How to use free and open public APIs? Depending on the API, there are different ways to use it. Some common methods are:

  • Using a web browser: Simply enter the API URL in the address bar and see the response in JSON format.
  • Using a coding language: Use a library or module that supports HTTP requests and parse the JSON response accordingly.
  • Using a command line tool: Use cURL or similar tools to send HTTP requests and view the JSON response in the terminal.
  • Using a no-code API client: Use tools like Swagger, Postman, Insomnia, or Apipheny that allow you to test and explore APIs without writing any code.