Twilio
Twilio is a cloud communications platform that provides APIs for developers to build and integrate voice, video, messaging, and authentication capabilities into their applications. It enables sending SMS, making phone calls, handling two-factor authentication, and managing real-time communication features without needing to build underlying telecom infrastructure. The platform is widely used for customer engagement, notifications, and communication workflows.
Developers should learn Twilio when building applications that require reliable communication features, such as sending transactional SMS alerts, implementing voice-based IVR systems, or adding two-factor authentication via SMS or voice calls. It's particularly valuable for customer-facing apps in e-commerce, healthcare, and logistics where timely notifications and user verification are critical, as it abstracts the complexity of telecom networks into simple API calls.