Zavu
Zavu is one API for all your messages, built to send and receive SMS, WhatsApp, Email, Voice, Telegram, and more from a single integration. It helps developers ship messaging instead of maintaining messaging infrastructure, replacing separate APIs, SDKs, auth models, webhook formats, sender setup, template approvals, and error handling with one SDK, one webhook format, and one dashboard. Zavu is also built for AI agents from day one: agents can send SMS, WhatsApp, Email, and Voice globally, while developers can use production-ready SDKs across languages such as Node.js, Python, Ruby, Go, PHP, and Java. Its Smart Send and AI Routing features pick SMS, WhatsApp, or Email per contact, choose the best or cheapest delivery path using platform-wide delivery intelligence, and fall back automatically when a channel fails. Context is preserved, delivery is deduplicated, and cost is tracked end-to-end across the fallback chain.
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WhatsApp
Simple. Secure. Reliable messaging. With WhatsApp, you'll get fast, simple, secure messaging and calling for free*, available on phones all over the world. WhatsApp Business is a free to download app that built with the small business owner in mind. Create a catalog to showcase your products and services. Connect with your customers easily by using tools to automate, sort and quickly respond to messages. WhatsApp can also help medium and large businesses provide customer support and deliver important notifications to customers. Learn more about WhatsApp Business API. Some of your most personal moments are shared on WhatsApp, which is why we built end-to-end encryption into the latest versions of our app. When end-to-end encrypted, your messages and calls are secured so only you and the person you're communicating with can read or listen to them, and nobody in between, not even WhatsApp.
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WasenderApi
WasenderApi is a powerful and low-cost WhatsApp API for developers that enables seamless integration of WhatsApp messaging functionality into applications. With features like unlimited messages, multiple WhatsApp sessions, webhook support, and the ability to send various media types (text, images, videos, voice, documents, etc.), WasenderApi offers an affordable alternative to traditional per-message WhatsApp API services. Our tool is perfect for businesses and developers looking for a scalable and efficient solution to automate customer communications, send bulk messages, and manage WhatsApp sessions with ease.
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Beeper
Beeper unifies all your messaging apps—like WhatsApp, iMessage, Instagram, Telegram, Slack, and more—into one secure inbox. It lets you send, read, and organize conversations across multiple services and devices without switching apps. Messages sync seamlessly between Android, iPhone, Windows, macOS, and Linux, ensuring your chats are always up to date. Built with privacy in mind, Beeper supports on-device connections, so your data stays on your hardware and never passes through unnecessary servers. Power users can manage reminders, schedule messages, and streamline workflows for professional communication. With its simple interface and advanced features, Beeper makes chatting across platforms effortless and efficient.
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