What's inside
Get an API Key. Start Learning Now.
No local setup, servers or proxies required. Just add water your API Keys and start learning now.
What is an API?
APIs (Application Programming Interfaces) are the `glue` that connects machines and computer programs. If you're going to build the next text start-up, you must know how APIs work.
What is REST?
REST (REpresentational State Transfer) is a method that allows for `state` to be transferred to another place, just like Teleportation. It's hard to understand it by theory, that's why we've built LearnRest.dev, so you can learn by practice.
Why Register?
When you start to build bigger tech products, security becomes an issue. So you need to learn how to work with secure API Keys. By creating an account, we let you manage your API keys.
Learn by Doing
Free Test and Mock APIs for Learning
All APIs require a free access token, that you can get after Signing up.
| API Name | Description | Supported Methods |
|---|---|---|
| User Profile API | View authenticated user's profile data. Learn how header authentication works. | GET |
| Car Brands API | Get popular car brands and other related information. Learn how to query APIs for information. Supports search and pagination. | GET |
| My Books API | Create, Read, Update, Delete a list of books. Learn how basic CRUD operations work. | GET, POST, PUT, DELETE |
| My Images API | Create, Read, Update, Delete images. Learn how image uploads and responses work. | GET, POST, PUT, DELETE |
| Status Codes API | Learn how API HTTP status responses are received. | GET |
Move Fast and Break Things.
Feel free to play around with the free API and endpoints. If you make a mistake, erase everything and start over.
No local setup, node.js or docker required- Learn GET, POST, PUT, DELETE requests
- Learn the REST principals
Your API Mentor in the Cloud.
Unlike any other service, you'll see how an API works in the real-world. But we keep your datasafe.
- All API keys expire automatically.
- All uploaded data deleted automatically.
- Use with Postman, Mobile apps or any REST Client
Numbers That Matter
API Development Training Saves time and Money
90%
Developers Use APIs
30%
Developer Time Spent on APIs
24,000+
Web APIs in the World
$5.1 Billion
Market for API Management
Stories from our users
Why use another API on cloud, when you can do it on your machine?
Well, see what our users say.
Simple setup and easy to learn. Very helpful when teaching the basics of how APIs work.
Dale M.
Web Developer
I really enjoyed learning to build APIs with LearnRest.dev. It was easy to setup and I was able to create a working API within minutes. This is the easiest way to learn how APIs work.
Michael K.
iOS Developer
We use to show students how to use an API. They learn so much quickly when they can actually use a real product without worrying about things that can go wrong.
Alisa S.
IT Tutor
Simple & Free.
LearnRest.dev is a free to use API-as-a-service for learning.
It's free to use, and it's free to learn.
Frequently Asked Questions
Here are answers to a few of the most common questions we get about REST APIs and API development.
