undefined
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What is undefined?
OIDC OpenID Connect (OIDC) is an identity layer built on top of OAuth 2.0. While OAuth 2.0 handles authorization (what you can do), OIDC handles authentication (who you are). It introduces the concept of an ID token, a signed JWT that contains claims about the authenticated user, such as their name, email, and user ID. OIDC is the standard behind "Sign in with Google / GitHub / Apple" flows and is the correct choice when your API needs to verify a user's identity, not just their permissions.
Free resources to learn undefined
More in stage 5: Authentication Methods
undefined: common questions
Can I learn undefined in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain undefined in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this undefined tutorial for beginners?
It is lesson 41 of 97 in the free API Design roadmap, in stage 5, Authentication Methods. If you are new to API Design, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.