Free API Directory
Discover 1,512+ free public APIs for your next project. Browse by category, search by name, or explore popular APIs.
Browse APIs by Category
Find the perfect API for your project from 53 categories
Popular APIs
Most viewed APIs by developers
Recently Added APIs
Fresh APIs added to our directory
What is an API Directory?
An API directory is a comprehensive catalog of Application Programming Interfaces (APIs) that developers can browse to find the right tools for their projects. Think of it as a library for APIs - organized, searchable, and easy to navigate.
PublicAPIs.io is a free API directory featuring over 1,512 public REST APIs across 53 categories. Whether you need weather data, payment processing, social media integration, or AI capabilities, our directory helps you discover the perfect API without the hassle of searching across dozens of websites.
Why Use an API Directory?
- Save Time: Find APIs quickly instead of searching across multiple sites
- Compare Options: See multiple APIs side-by-side in the same category
- Discover New Tools: Find APIs you didn't know existed
- Free Access: No signup required to browse our entire directory
Frequently Asked Questions
What is an API directory?
An API directory is a curated catalog of APIs (Application Programming Interfaces) organized by category, making it easy for developers to discover and compare APIs for their projects. PublicAPIs.io is a free API directory featuring over 1,500 public APIs across 50+ categories.
How do I find an API for my project?
You can browse APIs by category (like Weather, Finance, or Games), use the search function to find specific APIs, or explore popular APIs. Each API listing includes a description, documentation link, and category information to help you choose the right one.
Are the APIs in this directory free?
Most APIs listed in our directory offer free tiers or are completely free to use. Each API listing indicates whether authentication is required. Many APIs like Open-Meteo, PokeAPI, and JSONPlaceholder are entirely free with no API key needed.
Do I need to sign up to use PublicAPIs.io?
No, PublicAPIs.io is completely free to browse with no signup required. You can search, browse categories, and access API documentation links without creating an account.
How often is the API directory updated?
Our API directory is continuously updated with new APIs. We add new APIs weekly and regularly verify that existing APIs are still active and their documentation is current.
Start Building with Free APIs
Browse our complete directory of 1,512+ free public APIs and find the perfect API for your next project.
