REST API for Apps

Integrate WhatsApp, SMS, RCS, and Voice messaging into your applications using fast, secure, and scalable REST APIs built for developers and enterprises.

NXCMSG provides a powerful REST API that allows developers to seamlessly embed real-time messaging capabilities into web and mobile applications. With a single unified API, you can send and receive messages across WhatsApp, SMS, RCS, and Voice channels without managing multiple providers or complex workflows. Our API is designed with simplicity, speed, and scalability in mind. Developers can authenticate securely, trigger messages instantly, manage templates, receive delivery callbacks via webhooks, and monitor message status in real time. Whether you’re building OTP verification, marketing automation, customer notifications, or conversational chatbots, NXCMSG APIs adapt to your business needs. Built on enterprise-grade infrastructure, NXCMSG REST APIs ensure high availability, low latency, and compliance with regulatory standards. Detailed documentation, SDKs, and sandbox access help you go live faster and scale confidently as your message volume grows.