messaging infrastructure

One API. Every Channel. Ship faster.

Send SMS, WhatsApp, Email, Voice, and more from a single API. Build AI agents for any channel. Stop maintaining messaging infra.

Get Free API Key → ↗ See Docs

2K A2P messages included · Pay-as-you-go · No credit card required

smart-send.ts

import Zamu from '@zamudev/sdk';
 
const zamu = new Zamu();
 
// ML picks the best channel per contact
const msg = await zamu.messages.send({
  to: "+14155551234",
  text: "Your order #1234 shipped!",
  channel: "auto",
  fallbackEnabled: true,
});
 
console.log(msg.channel, msg.status);
// "whatsapp" "queued"

WhatsApp SMS Email Voice Telegram Instagram

The Problem

You're here to build products,
not messaging infra.

Too many APIs to maintain

Twilio for SMS, Meta API for WhatsApp, SES for Email — each with different SDKs, auth models, and error handling. You're maintaining three integrations instead of shipping features.

⚙

Integration takes weeks, not minutes

Phone numbers, webhooks, template approvals, sender verification — by the time you've set everything up, the sprint is over. Messaging shouldn't be a project.

⏱

WhatsApp is a project in itself

24-hour windows, WABA setup, Meta Business verification, template approvals — just sending a WhatsApp notification requires more compliance work than your entire auth system.

📋

Costs are unpredictable and growing

Per-message pricing on every channel, no visibility into which route is cheapest. Smart routing could save you 80% but you'd have to build it yourself.

📈

Developer Experience

Built for devs.
Actually.

One SDK, five languages, all your communications. From zero to production in minutes — not weeks.

→

Smart routing with auto-fallback

ML picks SMS, WhatsApp, or Email per contact. Falls back automatically. Zero retry logic in your code.

⚡

AI-native from day one

Run npx skills add zamudev/zamu-skills and your AI agent can message globally in seconds.

◉

One webhook format, always

Delivery receipts, inbound messages, status updates — same format across every channel. Build once.

◈

Real-time observability

Delivery logs, cost tracking, latency metrics. Every message, every channel, one dashboard.

POST /v1/messages

channel: "auto"  // AI routing
 
// zamu picks the best path:
// ✓ compliance check
// ✓ cheapest channel
// ✓ delivery intelligence
 

            WhatsApp ✓
            SMS ✓
            Telegram ✓
          
// Response
{
  channel: "whatsapp",
  status: "queued",
  cost: 0.003,
  fallback: null
}

$ npm i @zamudev/sdk

Also available: Python · Go · Ruby · Java

Pricing

WhatsApp Business Plans.
Built for every stage.

Official WhatsApp Business API, automation, campaign tools, and support tiers for teams scaling customer conversations.

Starter

$79

/month

Perfect for small businesses getting started.

Get Started

Up to 1,000 contacts/month
Official WhatsApp Business API
Automated responses
API access included
Email support
1 connected phone number

Your messages. Your data.
Always secure.

🔐

Encrypted in transit & at rest

TLS 1.3 for all connections. AES-256 at rest. 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, TCPA and GDPR handling, URL verification, broadcast content review.

💬

Direct support for everyone

The only platform with direct human support for ALL customers. No tiers, no ticket queues. Real engineers.