API-first startups must strategically decide between building or buying an API management solution, as this choice significantly influences their resource allocation, time-to-market, and overall business strategy. Developing an in-house solution offers the advantage of customization, control, and scalability tailored to the company's specific needs but requires substantial investment in time, resources, and expertise, potentially delaying market entry and increasing ongoing maintenance responsibilities. Conversely, purchasing an external API management solution provides a cost-effective and quicker implementation with pre-built functionalities that facilitate internal advancements, although it may limit customization and create dependency on external vendors. Companies must assess their specific needs, resources, and objectives to determine the best approach, considering the benefits and drawbacks of each option. The MoSCoW framework, which prioritizes features as Must have, Should have, Could have, and Won’t have, can aid in making this decision by aligning strategy and goals. Careful evaluation of these factors is essential for API-first organizations to ensure long-term growth, scalability, and competitive advantage in the market.