One API.
Every Channel.
Stop juggling multiple messaging providers. Send SMS, WhatsApp, Email, and RCS through a single unified API with intelligent routing and automatic fallback.
All Channels, One Integration
Reach your customers wherever they are. No separate integrations needed.
SMS
Universal reach with 98% open rates
Rich messaging with 2B+ users
Transactional and marketing
RCS
Rich Business Messaging
Simple, Unified API
One endpoint for all channels. Smart routing decides the best path.
// Send a message - Zavu picks the best channel
const response = await zavu.messages.send({
to: "+1234567890",
channel: "auto", // Let Zavu choose: WhatsApp, SMS, Email
text: "Your order #12345 has shipped!",
fallbackEnabled: true, // Auto-retry on different channel
});
// Or specify your preferred channel order
const response = await zavu.messages.send({
to: "+1234567890",
channel: "whatsapp", // Try WhatsApp first
text: "Track your order: https://track.example.com/12345",
fallbackEnabled: true, // Fall back to SMS if needed
});Why Omnichannel?
Stop managing multiple integrations. Start reaching customers effectively.
Single API Integration
One API call to send messages across all channels. No need to manage multiple integrations, SDKs, or vendor relationships.
Intelligent Routing
Automatically select the best channel based on user preferences, message content, and delivery probability.
Automatic Fallback
If WhatsApp fails, fall back to SMS automatically. Ensure delivery without manual intervention.
Unified Contact History
See all conversations across channels in one place. No more fragmented customer communication.
Cost Optimization
Route messages through the most cost-effective channel while maintaining delivery standards.
Global Compliance
Built-in compliance with TCPA, GDPR, and regional regulations across all channels.
Omnichannel in Action
Real-world examples of intelligent channel routing.
Order Notifications
Send order confirmations via the customer's preferred channel. WhatsApp for rich updates, SMS for quick alerts.
E-commerce sends order shipped notification via WhatsApp with tracking link, falls back to SMS if undelivered.
Two-Factor Authentication
Deliver OTP codes through the fastest available channel with automatic retry.
Fintech sends 2FA code via WhatsApp, automatically retries via SMS if not delivered in 30 seconds.
Customer Support
Meet customers where they are. Single inbox for all channel conversations.
Support agent responds to WhatsApp query, can seamlessly continue conversation via SMS if customer prefers.
Marketing Campaigns
Reach customers on their preferred channel with personalized content.
Retail brand sends promotional offer via WhatsApp to opted-in users, email to others.
Multi-Vendor vs. Omnichannel
The difference between juggling vendors and true unified messaging.
Multi-Vendor Approach
- xSeparate SMS, WhatsApp, Email providers
- xMultiple APIs, SDKs, dashboards
- xManual failover implementation
- xFragmented conversation history
- xMultiple billing relationships
- xComplex compliance management
Omnichannel Platform
- Single API for all channels
- One SDK, one dashboard
- Automatic intelligent failover
- Unified conversation history
- Single invoice, predictable costs
- Built-in global compliance
Ready for Unified Messaging?
Zavu's omnichannel API lets you reach customers across SMS, WhatsApp, and Email with one integration. $0.005 per user, intelligent routing included.