F5 Distributed Cloud API Security is a SaaS-based API security product offered by F5, designed to discover, detect, and protect APIs across modern application environments. The solution automatically identifies and maps all API endpoints associated with an organization's applications, generates OpenAPI specification files, and continuously monitors for anomalous behavior, shadow APIs, and suspicious requests. The platform combines data analytics with AI and machine learning to provide threat detection and forensic analysis of API communications. Key capabilities include automatic API discovery through multiple detection approaches, sensitive data monitoring and masking (covering PII, PCI-DSS, HIPAA, and GDPR-related data types), and enforcement controls to block unwanted traffic and connections. The solution addresses the OWASP API Top 10 attack categories. F5 Distributed Cloud API Security integrates into CI/CD pipelines and API code repositories, enabling security testing earlier in the software development lifecycle. This allows organizations to identify vulnerabilities before APIs reach production and apply compensating controls while code fixes are developed. The product supports deployment across public cloud environments (AWS, Azure, GCP), on-premises data centers, and F5's global network of points of presence (PoPs). It is primarily targeted at organizations managing large or complex API inventories, particularly those with compliance requirements or operating in regulated industries such as financial services, healthcare, and the public sector. The platform is managed through a centralized SaaS portal offering inventory visibility, threat analytics, and troubleshooting capabilities.