One API
for all your messages.
Messages fail silently. Zavu makes sure they don't — SMS, WhatsApp, Voice, Email, Telegram and more with smart routing, auto fallback, and built-in compliance.
Trusted by teams across industries
The Problem
Messaging at scale breaks in ways you don't expect.
Deliverability is a moving target
Carrier filtering rules change without notice. Phone number reputation degrades silently. What worked yesterday stops working today — and you find out from customer complaints.
Multichannel means multi-everything
Each channel has its own API, auth model, rate limits, error codes, and compliance rules. Five channels means five codebases with five different failure modes.
Compliance scales faster than your team
Opt-out handling, consent tracking, template approvals, TCPA, GDPR, A2P 10DLC — the compliance surface area grows with every market and channel you add.
Cost compounds quietly
Per-message pricing, monthly number fees, carrier surcharges, failed message costs — without active optimization, messaging spend grows linearly with your user base.
Platform
Every channel, one control plane.
Monitor, route, and optimize every message from a single dashboard. Real-time logs, delivery analytics, and cost tracking across all channels.
Why Zavu
Ship messaging, not infrastructure.
1 API
One integration
SMS, WhatsApp, Telegram, Voice, Email. One SDK, one webhook format, one dashboard.
3 min
Faster shipping
Production-ready SDKs in 5 languages. From zero to first message in minutes, not weeks.
30-80%
Smart routing savings
ML picks the cheapest channel per message using delivery intelligence aggregated across the entire platform. This routing improves as the network grows — decisions that would be impossible with isolated data.
100%
Unified observability
Delivery receipts, cost tracking, latency metrics. Every message, every channel, one view.
Smart fallback, zero code
When WhatsApp fails, Zavu automatically falls back to SMS. No retry logic in your code. Context is preserved, delivery is deduplicated, and cost is tracked end-to-end across the fallback chain.
Direct support for every customer
We're the only messaging platform that gives direct human support to ALL customers — not just enterprise. No tiers. No ticket queues. Real engineers, real answers. Migrating from another platform? We'll help.
For every team
One platform, every workflow.
SDKs in 5 languages, consistent API shape, typed responses, sandbox testing. Ship messaging without reading carrier docs.
Dashboard with real-time delivery metrics, cost analytics, contact management, and broadcast campaigns. No code required.
Built-in AI agents with RAG, tool-use, and multi-turn conversations. Connect your LLM or use ours — per sender, per channel.
Auto-fallback between channels, retry logic, rate limiting, 10DLC compliance. Built to handle millions of messages reliably.
The Stack
Everything connects.
From channel primitives to AI agents — a complete messaging stack that grows with you. No glue code, no vendor lock-in.
Channels
Developer Workflow
Reliability Layer
Use Cases
Developer Experience
Three lines to send.
ML handles channel selection, retries, fallbacks, and compliance. You write three lines.
Use cases
Built for what you need.
AI assistants
Build conversational AI on WhatsApp, Telegram, or SMS. Multi-turn, context-aware, with knowledge bases and tool-use.
Support automation
AI agents that handle customer questions 24/7. RAG-powered, with real-time data lookups and smart escalation.
A2P notifications
Order confirmations, shipping updates, appointment reminders. Delivered on the channel your users prefer.
OTP & verification
One-time passwords via SMS, WhatsApp, or Voice. Template-based authentication with auto-expiry.
Multi-channel delivery
Same message, best channel. ML routing picks the optimal path. Auto-fallback keeps delivery rates high.
Alerts & lifecycle
Broadcasts with AI content review, cost estimation, balance reservation, and per-contact personalization. Schedule, review, and send at scale.
Platform sub-accounts
Build messaging for your customers. Sub-accounts give each customer their own API keys, spending caps, and usage tracking — while billing to your account.
Switching to Zavu took our messaging bill from $5,000 to $500 a month. Same volume, same channels, 90% less cost.
Nely.ai
AI-powered customer engagement platform
Pricing
Only pay for what you use.
No tiers. No commitments. One price per active contact, plus provider costs at zero markup.
Usage-based
+ provider pass-through at cost.
Sending at scale?
Volume discounts, custom SLAs, dedicated infrastructure, SSO/SAML, and a direct line to our engineering team.
Switching providers?
Sending 10k+ messages a month? We'll migrate you for free with hands-on technical assistance. Zero downtime.
Trust & Security
Enterprise-grade security.
Secure in transit & at rest
TLS 1.3 for all connections. Data encrypted at rest with AES-256. No message content stored after delivery.
Controlled access
Project-level API keys. Webhook signature verification with HMAC-SHA256.
Built for reliability
Multi-region infrastructure. Automatic failover between providers. 99.95% uptime SLA on Enterprise.
Full observability
Real-time delivery logs, latency metrics, cost tracking. Data exports for compliance and audit.
Compliance built in
A2P 10DLC registration, TCPA and GDPR handling, URL verification to prevent phishing, broadcast content review, and regulatory document management for international numbers.
FAQ
Common questions.
One API
for all your messages.
Start sending messages in minutes. Free tier included. No credit card required.