Simple messaging for developers

Send OTPs, alerts, and system messages with API that handles SMS, WhatsApp, and more.

Trusted by teams at :

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Multi-Channel Messaging

Send critical messages via WhatsApp and SMS with intelligent channel selection. Our platform ensures your OTPs, alerts, and notifications reach users through their preferred channel with maximum delivery confidence.

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Delivery Confidence

Built-in delivery tracking and fallback mechanisms ensure your messages always their destination, with real-time status updates and automatic retry logic.

Instant Delivery

Lightning-fast message delivery with sub-second response times for OTPs and critical alerts, ensuring your users never wait for important notifications.

Smart Templates

Pre-built templates for common use cases like OTPs, login alerts, and system notifications with dynamic variable support for personalized messaging.

For Developers

Integrate in minutes

A simple, elegant interface so you can start sending messages instantly. It fits right into your code with APIs for your favorite programming languages.

const axios = require('axios');
const sendMessage = async () => {
try {
const response = await axios.post('https://api.tryzend.com/messages', {
to: '+233540920557',
body: 'Hello! This is a test message from Zend API.',
preferred_channels: ['sms'],
fallback_enabled: true,
delivery_priority: 'reliability'
}, {
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
'X-Api-Key': 'sent_test_JfVKRJF3rYUta3Gw5NzqQ54Rid3hEBa4'
}
});
console.log('Message sent:', response.data);
// Response: {"id":"688299ee5b4a8df155b91734","status":"pending","estimated_cost":0.02,"message":"Message queued for processing"}
} catch (error) {
console.error('Error:', error.response?.data || error.message);
}
};
sendMessage();
Pricing

Free to use, pay only for what you send

SMS: 0.035

WhatsApp: 0.065

in credits/message

zend is completely free to use. No monthly fees, no setup costs, no hidden charges. You only pay for the messages you actually send with our transparent credit-based system.

Free platform access
No monthly subscriptions
Pay per message sent
Transparent pricing

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

Multi-channel messaging platform supporting SMS and WhatsApp with intelligent routing and fallback mechanisms.

Fully Compliant

Compliant with data privacy regulations and telecom guidelines, ensuring your messages meet all requirements.

Account Management

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

What Our Clients Say

See how teams trust zend for their critical messaging needs. Real feedback from developers and businesses who rely on our platform.

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.

H
Hubert
Engineer

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.

E
Elvis
Founder

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.

M
Mawuli
Product Manager

Frequently Asked Questions

Discover quick and comprehensive answers to common questions about our messaging platform, services, and features.

Can't find what you're looking for? Contact our support team