REST APIs are the cornerstone of modern digital transformation, enabling seamless integration, automation, and monetization across industries. This comprehensive whitepaper explores how businesses can leverage REST APIs to drive growth, streamline operations, and unlock new revenue streams. With real-world success stories from companies like Twilio, Stripe, and Google, along with actionable strategies for API monetization, integration, and management, this guide provides everything you need to harness the full potential of REST APIs. Learn how to position APIs as core business assets, build developer-friendly ecosystems, and navigate the challenges of adoption to achieve transformative business outcomes.