https://github.com/public-apis/public-apis Edit: use https://github.com/public-apis-dev/public-apis instead Answer from papers_ on reddit.com
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Free APIs
free-apis.github.io
Free APIs
An open-source collection of free APIs for web developers.
Discussions

What are some cool APIs you can use for free? (e.g. Weather API)
Check out this repo itโ€™s a bunch of free APIs More on reddit.com
๐ŸŒ r/learnprogramming
7
2
December 21, 2022
What are some other free apis that are pretty good?
For Gemini you need to AI studio and create a API key. You can do this for free as long as you have a Google account. If you aren't paying you can use pro I believe a hundred times a day? Maybe 50 I actually can't remember. Flash also can be used quite a bit. https://aistudio.google.com/app/apikey More on reddit.com
๐ŸŒ r/SillyTavernAI
14
0
July 10, 2025
I built API Hub: a categorized directory of useful public APIs for frontend developers
Sorry, but the design makes me never want to use this. More on reddit.com
๐ŸŒ r/reactjs
6
0
November 9, 2025
API hidden gems
https://apivault.dev/ you might get a kick out of https://spacetraders.io/ More on reddit.com
๐ŸŒ r/webdev
38
132
November 13, 2023
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API List
apilist.fun
API List: A public list of free APIs for programmers
We offer over 800 free APIs for developers to develop the next big thing, add yours if you own an API
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GitHub
github.com โ€บ public-apis โ€บ public-apis
GitHub - public-apis/public-apis: A collective list of free APIs ยท GitHub
A collective list of free APIs. Contribute to public-apis/public-apis development by creating an account on GitHub.
Starred by 414K users
Forked by 44.8K users
Languages ย  Python 96.8% | Shell 3.2%
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Medium
medium.com โ€บ codex โ€บ 15-fun-and-interesting-apis-to-use-for-your-next-coding-project-in-2022-86a4ff3a2742
15 Fun and Interesting APIs to use for your next coding project in 2022 | by AB Satyaprakash | CodeX | Medium
June 29, 2022 - This is something you could add to your personal website, for instance. The Bored API ensures that a user is never bored. When requested, it responds with a random activity for the user to do. You can even customize the type and the number of participants! This is a free JSON API for hand-curated Chuck Norris facts.
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Apipheny
apipheny.io โ€บ free-api
Free API โ€“ 90+ Public APIs For Testing [No Key] โ€“ Apipheny
But for beginners still exploring APIs, keys tend to complicate things. Luckily, there are also APIs with zero requirements. Such APIs are perfect for beginners and web developers looking to access sample data sets for their apps without restriction. Here are a few of the best, unrestricted, free APIs for testing.
Find elsewhere
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Vonage
developer.vonage.com โ€บ en โ€บ blog โ€บ the-ultimate-list-of-fun-apis-for-your-next-coding-project
The Ultimate List of Fun APIs For Your Next Coding Project
March 15, 2021 - Like the Agify API, you donโ€™t need to register for an API key. You can type that request into your browser as is and get a response. Learn more. Kanye Rest is a free REST API for random Kanye West quotes (also known as Kanye as a service).
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Nile Bits
nilebits.com โ€บ home โ€บ blog โ€บ technical โ€บ engineering
Top 10 Free APIs You Should Know | Nile Bits
September 19, 2024 - APIs may streamline your development process and save time whether youโ€™re creating a mobile app, web app, or other type of software. This article will examine ten free APIs that you should be aware of by 2024, provide code examples to help you understand how to use them, and go over some use cases.
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Free Public APIs
freepublicapis.com
Free Public APIs
A collection of Free Public APIs for Students and Developers. Tested every single day.
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Nordic APIs
nordicapis.com โ€บ 9-free-public-apis-that-offer-up-some-cool-open-data
9 Free Public APIs That Offer Up Some Cool Open Data | Nordic APIs |
November 12, 2025 - Weather data, cat pics, random facts... here are nine free, open, no-key-required APIs you can start calling immediately within your apps.
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Talent500
talent500.com โ€บ home โ€บ blog โ€บ 21 public apis for developers
21 Best Public APIs for Developers to Build Cool Projects
November 17, 2025 - The Unsplash API provides access to a vast library of high-quality, free-to-use images and photographs.
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Mixed Analytics
mixedanalytics.com โ€บ blog โ€บ list-actually-free-open-no-auth-needed-apis
Big List of Free and Open Public APIs (No Auth Needed) [2026]
January 6, 2026 - Hi, please consider to add in IP2Location.io: https://www.ip2location.io/ which is returning IP geolocation data, WHOIS data and proxy information. It is a keyless API and it is free. Reply ยท I checked the developer docs and it seems to require a key, can you please let me know how to access this API without a key? Reply ยท You can access the API directly at https://api.ip2location.io/. Cool, thanks!
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Public APIs
publicapis.dev
A Collaborative List Of 1400+ Public APIs For Developers
Screenshot API for developers that captures any URL in one HTTP request with predictable output. ... 2,000 free API calls per day. Production grade IP intelligence at non-enterprise prices.
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Kg
kg.codes โ€บ blog โ€บ 9-free-cool-web-apis-to-use-in-your-next-project
9 free/cool web APIs to use in your next project - KG.codes
December 16, 2019 - With the Plaid API, you can allow user to connect their bank account without you knowing the details. The Venmo app already uses this! Itโ€™s only free for testing and then paid.
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Reddit
reddit.com โ€บ r/learnprogramming โ€บ what are some cool apis you can use for free? (e.g. weather api)
r/learnprogramming on Reddit: What are some cool APIs you can use for free? (e.g. Weather API)
December 21, 2022 -

I think one of the big issues when learning to program is the absolut lack of data and for most semi-useful tools you need at least some of. Do you know of any cool websites that provide real world data / lots of data that can be easily accessed with an API (JSON) call?

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Bannerbear
bannerbear.com โ€บ blog โ€บ 10-public-apis-that-you-can-use-in-your-next-project
10 Free APIs for Your Next Project - Bannerbear
The Shutterstock API provides access to Shutterstock's library of media, information about customers' accounts and the contributors that provide the media. Customer platforms can search for media, view information and previews for the media, and license and download media. The Free plan includes a variety of Shutterstock's top-selling images across multiple categories.
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Public APIs
publicapis.io
Public APIs Directory โ€” 1000+ Free Public APIs for Developers
Discover over 1000 free public APIs for your next project. Browse REST APIs by category: weather, finance, AI, maps, social media, and more. Get API keys, code examples, and documentation.