In an era where APIs underpin digital transformation, the journey typically highlights integration but neglects the critical post-integration phase. This proposed lecture, grounded in extensive research, including interviews and analysis of best practices from leading companies across various sectors, addresses this gap by focusing on API Egress traffic and the challenges that emerge in the API economy after initial integration. We will cover strategies for optimizing API consumption costs and maintenance, utilizing industry-proven practices to monitor and manage API usage efficiently. The session will also discuss management controls essential for scaling and ensuring the reliability of API infrastructures, adapting dynamically to real-time demands. Moreover, the lecture will explore the rising security risks associated with unsafe API consumption, introducing the latest protocols and measures to protect against unauthorized access and breaches. Participants will leave with actionable insights into managing, optimizing, and securing their API ecosystems, armed with a comprehensive framework that reflects the forefront of API management and security strategies.