What is API Testing and why is it important?

beginner

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API Testing validates Application Programming Interfaces directly at the message layer, verifying functionality, reliability, performance, and security without a user interface.

Key Benefits:

Early Detection: Identifies issues before UI development
Faster Execution: Quicker than UI-based tests
Direct Logic Testing: Tests business logic without UI dependencies
Integration Validation: Ensures proper system communication
Cost-Effective: Earlier bug detection reduces fix costs

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