🎉
Introducing Zend Email - Transactional email for everyone

Simple messaging for developers

Send OTPs, alerts, and system messages with APIthat handles EMAIL, SMS, WhatsApp, and Voice.

Zend dashboard showing the message send flow

Partners trust Zend to deliver their most important messages.

Seevcash
Tixvote
Adeton
Bmoni

Send Email. Transactional email from your own domains. Send HTML or plain text, authenticated with SPF, DKIM, and DMARC.

Read Email Docs

Add a sending domain, confirm its DNS records, and send through the API. Every send returns delivery status, and bounces and complaints are tracked and automatically suppressed.

200 · 1.2s
import { Zend } from '@usezend/node';


const zend = new Zend(process.env.ZEND_API_KEY);


const { data } = await zend.emails.send({
  from: 'onboarding@zend.dev',
  to: 'cirlorm@deadal.us',
  subject: 'Your invite is ready',
  html: `
    <h1>Your invite is ready</h1>
    <p>Welcome aboard, Cirlorm.</p>
    <p>You can sign in any time at
      <a href="https://tryzend.com/login">tryzend.com/login</a>.</p>
    <p>Your test API key is on your dashboard, ready to send.</p>
    <p>Cirlorm</p>
  `,
});

Your invite is ready

Welcome aboard, Cirlorm.

You can sign in any time at tryzend.com/login.

Your test API key is on your dashboard, ready to send.

Cirlorm

Send SMS. Every network, your own sender ID, and automatic fallback when a route goes down.

Read SMS Docs

Reach MTN, Telecel, and AirtelTigo through multiple providers with a registered alpha sender ID. When a message can't get through, Zend falls back to WhatsApp or a voice call automatically.

200 · 0.4s
import { Zend } from '@usezend/node';


const zend = new Zend(process.env.ZEND_API_KEY);


const { data } = await zend.messages.send({
  to: '+233540920557',
  senderId: 'Zend',
  body: "Hey Cirlorm — your Zend sign-in code is 482917. It'll expire in 10 minutes. Don't share it with anyone.",
  preferredChannels: ['sms'],
  fallbackEnabled: true,
});

Today at 2:14 PM

Hey Cirlorm — your Zend sign-in code is 482917. It'll expire in 10 minutes. Don't share it with anyone.
482917
Delivered

Send WhatsApp. Reach 3 billion+ people instantly with approved templates, interactive buttons, and rich media.

Read WhatsApp Docs

Pre-approved templates, delivery and read receipts on every message, and interactive button replies. Bring your own WhatsApp Business number or send through ours — with the same typed API as email, SMS, and voice.

200 · 480ms
import { Zend } from '@usezend/node';


const zend = new Zend(process.env.ZEND_API_KEY);


const { data } = await zend.messages.send({
  to: '+233540920557',
  preferredChannels: ['whatsapp'],
  templateId: 'order_shipped',
  templateParams: { order: 'RG-29481', carrier: 'UPS', eta: 'Wednesday' },
});

Order RG-29481 shipped

Hey Cirlorm — your order is on the way. Carrier UPS, ETA Wednesday.

Track order
Contact support
9:42 AM

Use Voice. Neural text-to-speech or your own recording — delivered as a real call, with OTPs read digit-by-digit.

Read Voice Docs

Send text and Zend speaks it with natural TTS, or upload audio in your own voice. Unanswered calls retry automatically, are refunded if they never connect, and fall back to SMS so your message always lands.

201 · 0.4s
import { Zend } from '@usezend/node';


const zend = new Zend(process.env.ZEND_API_KEY);


const { data } = await zend.voice.send({
  recipients: ['+233540920557'],
  text: 'Your verification code is 482917.',
  voice: 'female',
  fallback: { sms: true },
});

Zend

+233 24 555 0182

Your verification code is two four five five five zero one.

Built for production. Everything you need to run messaging at scale, on one platform.

More than send endpoints — real-time delivery tracking, encrypted PII, regulatory compliance, and a dashboard that keeps every channel under control.

Quick Integration

Simple HTTP API for sending OTPs, alerts, and notifications with comprehensive documentation.

99% Delivery

Real-time delivery tracking and automatic retry mechanisms for failed messages ensure a 99% delivery rate.

Secure By Design

Your messages and PII are encrypted with industry-standard security protocols and secure API key management.

Multi Channel

One platform for SMS, WhatsApp, email, and voice with intelligent routing and automatic fallback.

Fully Compliant

Compliant with data-privacy regulations and telecom guidelines, so your messages meet every requirement.

Account Management

A dashboard with real-time analytics, sender ID management, and template configuration tools.

Trusted in production. Teams ship OTPs, alerts, and campaigns on zend every day.

Real feedback from the developers, founders, and product teams who rely on zend for their critical messaging.

“Zend made it easy to send reliable SMS notifications for my health app, keeping doctors and patients instantly updated. Integration was smooth, delivery is fast, and support is great.”
HubertEngineer
“Zend's OTP delivery is lightning fast. Our user authentication improved dramatically, and our users now enjoy a seamless sign-in experience. Highly recommended for any team that values reliability and speed.”
ElvisFounder
“WhatsApp + SMS fallback ensures our users never miss important notifications. It gives us peace of mind knowing our messages always reach users. Game changer for our app and a huge boost to user engagement.”
MawuliProduct Manager

Questions, answered. Everything you need to know before you send.

Quick answers about channels, delivery, pricing, and integration. Can't find yours? Email our support team.