Nylas provides a universal API platform that allows developers to easily integrate email, calendar, and contacts features into their applications. The platform works by offering a single integration point for various email and scheduling services, which simplifies the development process and helps clients bring their products to market faster. Unlike many competitors, Nylas focuses on providing customizable solutions that can adapt to different business needs, making it suitable for a wide range of users, from startups to large enterprises. The goal of Nylas is to enhance communication and scheduling capabilities within software applications, ultimately improving user experience and efficiency.