midWeb Security
What is API authentication vs API authorization?
Updated May 6, 2026
Short answer
Authentication verifies identity; authorization controls access.
Deep explanation
APIs first validate identity (tokens/keys) then enforce permissions for resources.
Real-world example
Stripe API permissions per endpoint.
Common mistakes
- Mixing auth logic in one layer.
Follow-up questions
- What is API key security risk?
- What is fine-grained auth?