Best Free APIs Directory
Find free APIs for AI, weather, finance, and development projects in our curated directory.
The Best Free APIs for Developers
Find the perfect free API for your next project. Our curated directory features hundreds of free APIs across AI, weather, finance, and developer tools - all verified to offer genuine free tiers without credit card requirements.
Whether you need AI APIs for natural language processing, Weather APIs for forecasts and historical data, Finance APIs for stock and crypto data, or Developer APIs for GitHub integration and more - we have you covered.
Pro tip: Each API card includes a copy button for the endpoint URL. Click to copy and integrate into your projects quickly.
Showing 145-192 of 1467 APIs
Trello
Business
Boards, lists and cards to help you organize and prioritize your projects
Checkiday - National Holiday API
Calendar
Industry-leading Holiday API. Over 5,000 holidays and thousands of descriptions. Trusted by the World’s leading companies
Festivo Public Holidays
Calendar
Fastest and most advanced public holiday and observance service on the market
Hebrew Calendar
Calendar
Convert between Gregorian and Hebrew, fetch Shabbat and Holiday times, etc
Public Holidays
Calendar
Data on national, regional, and religious holidays via API
UK Bank Holidays
Calendar
Bank holidays in England and Wales, Scotland and Northern Ireland
AnonFiles
Cloud Storage & File Sharing
Upload and share your files anonymously
BayFiles
Cloud Storage & File Sharing
Upload and share your files
ddownload
Cloud Storage & File Sharing
File Sharing and Storage
Dropbox
Cloud Storage & File Sharing
File Sharing and Storage
File.io
Cloud Storage & File Sharing
Super simple file sharing, convenient, anonymous and secure
Filestack
Cloud Storage & File Sharing
Filestack File Uploader & File Upload API
FileUp
Cloud Storage & File Sharing
Temporary file hosting with upload API, expiration times, and view limits
GoFile
Cloud Storage & File Sharing
Unlimited size file uploads for free
Google Drive
Cloud Storage & File Sharing
File Sharing and Storage
Gyazo
Cloud Storage & File Sharing
Save & Share screen captures instantly
Imgbb
Cloud Storage & File Sharing
Simple and quick private image sharing
OneDrive
Cloud Storage & File Sharing
File Sharing and Storage
Pantry
Cloud Storage & File Sharing
Free JSON storage for small projects
Pinata
Cloud Storage & File Sharing
IPFS Pinning Services API
Quip
Cloud Storage & File Sharing
File Sharing and Storage for groups
Storj
Cloud Storage & File Sharing
Decentralized Open-Source Cloud Storage
The Null Pointer
Cloud Storage & File Sharing
No-bullshit file hosting and URL shortening service
Web3 Storage
Cloud Storage & File Sharing
File Sharing and Storage for Free with 1TB Space
Azure DevOps Health
Continuous Integration
Resource health helps you diagnose and get support when an Azure issue impacts your resources
Bitrise
Continuous Integration
Build tool and processes integrations to create efficient development pipelines
Buddy
Continuous Integration
The fastest continuous integration and continuous delivery platform
CircleCI
Continuous Integration
Automate the software development process using continuous integration and continuous delivery
Codeship
Continuous Integration
Codeship is a Continuous Integration Platform in the cloud
Travis CI
Continuous Integration
Sync your GitHub projects with Travis CI to test your code in minutes
0x
Cryptocurrency
API for querying token and pool stats across various liquidity pools
Alpha (Mossland)
Cryptocurrency
Korean crypto channel stance + RAG Q&A + canonical entity/topic/event store
Binance
Cryptocurrency
Exchange for Trading Cryptocurrencies based in China
Frequently Asked Questions About Free APIs
What are the best free APIs for developers?
The best free APIs include OpenAI API (free tier), GitHub REST API, OpenWeather API, and Alpha Vantage for finance data. Our directory lists hundreds of free APIs across AI, weather, finance, and developer categories.
Do these APIs require a credit card?
Most APIs in our directory offer free tiers that don't require a credit card. Some may require registration for an API key, but you won't be charged for basic usage within their free limits.
How do I integrate these APIs into my project?
Each API listing includes the endpoint URL with a copy button. Click to copy the endpoint, then use it in your HTTP requests. Visit the API's documentation (linked on each page) for authentication details and usage examples.
What's the difference between free and paid API tiers?
Free API tiers typically have rate limits (requests per minute/day) and may offer fewer features. They're perfect for development, testing, and small projects. Paid tiers offer higher limits, more features, and SLAs for production use.
Can I use these APIs for commercial projects?
Most APIs allow commercial use on their free tiers, but check each API's terms of service. Some may require attribution or have specific usage restrictions for commercial applications.