API Testing Statistics & Trends
Discover the latest API testing statistics, including the shift-left movement, average API test coverage, and tooling trends.
As microservices architectures dominate, API testing has become the most critical layer of the testing pyramid. Here are the data points proving the rise of API-first quality assurance.
Key Data Points
| Metric | Value | Source/Year |
|---|---|---|
| Organizations with API-First Strategies | 74% | Postman State of the API 2025 |
| Average API Test Coverage | 45% | SmartBear State of Quality 2025 |
| Critical Vulnerabilities found via API | 52% | OWASP API Security Report |
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