AI engineering glossary · Web APIs HTTP

What is refresh token?

Refresh token: A longer-lived credential that an application can exchange for a new access token when the old one expires, without asking the user to sign in again. It must be stored securely because it can mint new tokens.

Level: advancedTopic: Web APIs HTTP

Refresh token: an example

When a 60-minute access token expires, the app posts its refresh token to the token endpoint to get another.

Related terms

More Web APIs HTTP terms

Where you learn it

Refresh token is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

Before you go

Take the cheat sheet with you

One free PDF: the key AI-engineering terms, formulas and Python idioms. No spam; unsubscribe any time.