APIs have completely transformed the way the travel industry works. Once upon a time, travel agents relied on slow and error-prone manual processes to book flights, hotels, and cars. Today, APIs act as powerful connectors, linking travel agencies directly with suppliers in real-time. A travel API works like a universal translator between systems making flight number tracking, hotel booking, car rentals, and payment processing seamless. Instead of managing inventory, travel agencies can integrate multiple suppliers through an online travel agency platform powered by APIs.