Twenty-four in-depth quests are ready. Sign in to save completion and rewards across devices.
The learning atlas
Eight courses. Twenty-four playable quests.
Every region is now a complete three-quest course. Choose any route to learn, experiment, and save one-time rewards after signing in.
Starter Grove / Quest 01 of 24
What is an API?
About 67 minutes · five guided pages · no setup or coding required.
PAGE 1 OF 5 / ORIENT◷ 12 min
A way for apps to talk.
An API is a set of rules that lets one piece of software ask another for information or an action.
A weather app sends a request to a weather service. The service sends a response containing the forecast.
The app turns that data into something useful, such as a reminder to bring a jacket.
During this quest, you will connect the internet and apis to a realistic request and explain the result in your own words. The goal is understanding—not memorizing a definition.
Key ideas
Describe what is an api? without jargon.
Separate what the client asks for from what the service returns.
Recognize the idea when it appears in API documentation.
Your field exercise
Write a two-sentence explanation for a friend who has never used an API. Include one everyday app that could use this idea.
Reflect:
What problem does this concept solve for a person using an app?
