API Operational

One API
for all your messages.

Send and receive SMS, WhatsApp, Email, Voice, and more from one API. Build AI agents for any channel.

2K A2P messages included in plan. Pay-as-you-go fees still apply. · No credit card required

POST /v1/messagesAI Routingcompliance ✓best channelWhatsAppSMSTelegramVoiceEmailInstagramFacebook

Powering messaging for startups and scale-ups globally

ICCOS
TuMVP
RendaloMAQ
Pangolin
Nely.ai
ICCOS
TuMVP
RendaloMAQ
Pangolin
Nely.ai
ICCOS
TuMVP
RendaloMAQ
Pangolin
Nely.ai
ICCOS
TuMVP
RendaloMAQ
Pangolin
Nely.ai

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.

AI-Native API

Built for AI agents from day one

Run npx skills add zavudev/zavu-skills and your AI agent can send SMS, WhatsApp, Email, and Voice globally. Just tell it what you need.

claude
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Welcome back!

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Large apps/docs/openapi.json will impact performance (390.9k chars > 40.0k)

Developer Experience

Not into AI agents? We got you.

One SDK, all your communications. Check our documentation.

smart-send.ts

ML picks SMS, WhatsApp, or Email per contact. Falls back automatically.

1import Zavu from '@zavudev/sdk';
2 
3const zavu = new Zavu();
4 
5const msg = await zavu.messages.send({
6 to: "+14155551234",
7 text: "Your order #1234 has shipped!",
8 channel: "auto",
9 fallbackEnabled: true,
10});
11 
12console.log(msg.channel, msg.status);
13// whatsapp queued

Platform

Every channel, one dashboard.

Monitor, route, and optimize every message from a single dashboard. Real-time logs, delivery analytics, and cost tracking across all channels.

Sarah ChenWhatsAppdelivered$0.003
Carlos MuñozSMSdelivered$0.008
Emily WatsonEmailsent$0.001
James OliverWhatsAppdelivered$0.004
Ana LópezVoicequeued

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.

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

Start for free. Scale as you grow.

All channels included in every plan. SMS & Voice at carrier cost. No markup, no surprises.

Free Plan

No cost, no card, no hassle.

$0/mo
Free forever — no credit card
  • Unlimited API callsNo rate limits on API requests.
  • Unlimited Webhook EventsReal-time delivery receipts, inbound messages, and status updates — no limits.
  • AI RoutingML-powered channel selection picks the cheapest delivery path. Auto-fallback if a channel fails.
  • 2,000 WhatsApp Messages/moWhatsApp replies (24h window) + Telegram. Inbound messages also counted. SMS & Voice billed separately.
  • 3,000 Emails/moTransactional emails.100/day cap
  • 1 GB Media StorageStore images, documents, and media sent through the API.
  • 1 Sender
  • 1 WABA connectionConnect one WhatsApp Business Account via embedded signup.
  • Unlimited AI AgentsAnswer SMS, Email, and WhatsApp using AI agents. Supports RAG, tools, and multi-turn flows.
  • $2 AI credits or BYOK$2/mo included. Or bring your own key (OpenAI, Anthropic, Google, Mistral) — no markup.
  • Phone numbers from $1.25/mo
  • Webhooks & SDKSDKs for Node.js, Python, Go, Ruby, Java. Webhook signature verification included.
  • Community support

SMS & Voice billed from prepaid balance. See rates

Hobby

Great for side projects and small tools. Fast, simple, no overkill.

$21/mo
$25/mo billed annuallySave $48/yr

Everything in Free Plan, plus:

  • 1 US phone number included
  • $10 messaging credits included$10 balance added monthly for SMS, Voice, and other pay-per-use channels.
  • 100,000 WhatsApp Messages/mothen $0.003/extra msg
  • 100,000 Emails/moNo daily cap on paid plans.then $0.90/1,000 extra
  • 100 GB Media Storage
  • 3 Senders · 3 Phone numbers · 3 WABAsExtra WABAs at $7/mo each
  • BroadcastsSend bulk messages via WhatsApp, SMS, or Email in a single campaign.
  • Partner Invitations (WhatsApp)Invite clients to connect their WhatsApp Business Account via embedded signup.
  • Priority support

SMS & Voice billed from prepaid balance. See rates

Standard

Most popular

Perfect for scaling with less effort. Simple, solid, dependable.

$83/mo
$99/mo billed annuallySave $192/yr

Everything in Hobby, plus:

  • 1 phone number included (any country)Countries with numbers over $20/mo billed separately
  • $40 messaging credits included$40 balance added monthly for SMS, Voice, and other pay-per-use channels.
  • 500,000 WhatsApp Messages/mothen $0.002/extra msg
  • 150,000 Emails/mothen $0.90/1,000 extra
  • 5,000 Marketing Messages/moOpt-in broadcast messages for promotions, announcements, and campaigns.
  • 500 GB Media Storage
  • 1 Dedicated Email IPFull control over your sender reputation for better deliverability.
  • 5 Senders · 5 Phone numbers · 5 WABAsExtra WABAs at $5/mo each

SMS & Voice billed from prepaid balance. See rates

Growth

Built for high volume and speed. Zavu at full force.

$250/mo
$299/mo billed annuallySave $588/yr

Everything in Standard, plus:

  • 1 phone number included (any country)Countries with numbers over $20/mo billed separately
  • $100 messaging credits included$100 balance added monthly for SMS, Voice, and other pay-per-use channels.
  • 1,000,000 WhatsApp Messages/mothen $0.001/extra msg
  • 200,000 Transactional Emails/mothen $0.90/1,000 extra
  • 10,000 Marketing Messages/mo
  • 1 TB Media Storage
  • Unlimited Senders · 10 Phone numbers · 10 WABAsExtra WABAs at $5/mo each
  • Sub-accounts APIIsolated sub-accounts for your clients with independent API keys, spending caps, and usage tracking.
  • Dedicated supportNamed account manager with direct access.

SMS & Voice billed from prepaid balance. See rates

Included in every plan, billed separately

SMS & Voice

Pay-as-you-go from your credit balance. From $0.004/SMS.

WhatsApp Templates

Billed by Meta based on country & category. We don't markup.

Phone Numbers

Included per plan. Extra numbers from $1.00/mo each.

Dedicated Email IPs

Get your own dedicated IP address for email sending. Full control over your sender reputation, better deliverability for high-volume senders. Available on any paid plan.

$30/mo per IP

Trust & Security

Your messages, your data, always secure.

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.

Got questions?

Here's how it actually works. No fine print.

One API
for all your messages.

2K A2P messages included in plan. Pay-as-you-go fees still apply.

APIRouterSMSWA
Zavu - One API for all your messages.