Authentication
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What is Authentication?
API authentication verifies client identity to ensure only authorized access to resources. Common methods include API keys, OAuth 2.0, JWT, and basic auth. It protects data, prevents unauthorized access, enables usage tracking, and provides granular control over API resources.
Free resources to learn Authentication
More in stage 5: Learn about APIs
Authentication: common questions
Can I learn Authentication 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 Authentication 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 Authentication tutorial for beginners?
It is lesson 14 of 26 in the free Backend Beginner roadmap, in stage 5, Learn about APIs. If you are new to Backend Beginner, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.