Dictionary term
API Key
Also called secret key
Automation PlatformsBeginner
A secret string that identifies and authenticates your application to an API, usually sent in a header with each request.
In plain English
An API key is a secret code your app sends with each request to prove which app is calling. It should be kept private like a password.
Analogy
Like a membership card number that proves who you are at the door.
Why it matters
API keys authenticate your HTTP calls and must be stored as secrets, never hardcoded, when wiring up integrations.
In practice
Sending Authorization: Bearer sk-... in a header to call an API.
Related terms
Sources
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