42Crunch API Security Platform provides end-to-end API security automation across the API lifecycle from design through runtime. The platform operates across three main phases: design-time security testing in IDEs, automated security enforcement in CI/CD pipelines, and runtime threat protection. The platform includes API Audit for security scoring and remediation guidance, API Scan for dynamic testing to detect vulnerabilities like BOLA and BFLA and verify conformance to OpenAPI contracts, and API Protection for runtime blocking of malicious requests and responses. Security policies are based on OpenAPI specifications and enforced automatically. In the development phase, developers can test and harden APIs directly within their IDEs. During CI/CD integration, security quality gates prevent vulnerable APIs from reaching production by automatically testing APIs when pushed to the pipeline. At runtime, API Protection performs full transaction inspection against API contracts, validating headers, parameters, and payloads to block non-compliant or malicious traffic in real-time. The platform supports security-by-design methodology where security is coded into APIs at design time and policies are applied at scale throughout the lifecycle. All enforcement occurs in-line without data leaving the environment, and security teams maintain continuous control over policy enforcement as APIs change.