Bulk SMS

Send Bulk SMS
at Scale

Reach thousands or millions of recipients with a single API call. High throughput, real-time delivery tracking, and personalization included.

10K+
Messages/Second
200+
Countries
99%+
Delivery Rate
<3s
Avg Delivery

Broadcast API

Send personalized messages to contact lists with our Broadcast API.

Create and send broadcast
import Zavudev from '@zavudev/sdk';

const zavu = new Zavu('YOUR_API_KEY');

// Create a broadcast campaign
const broadcast = await zavu.broadcasts.create({
  name: 'Flash Sale Announcement',
  channel: 'sms',
  text: 'Hi {{name}}, 50% off everything today only! Shop now: https://...'
});

// Add contacts with personalization
await zavu.broadcasts.addContacts(broadcast.id, {
  contacts: [
    { recipient: '+1234567890', templateVariables: { name: 'John' } },
    { recipient: '+0987654321', templateVariables: { name: 'Jane' } },
    // ... thousands more
  ]
});

// Send immediately or schedule
await zavu.broadcasts.send(broadcast.id);

// Monitor progress
const progress = await zavu.broadcasts.getProgress(broadcast.id);
console.log(`Delivered: ${progress.deliveredCount}/${progress.total}`);

Bulk SMS Features

High Throughput

Send thousands of messages per second with our scalable infrastructure.

Global Reach

Reach recipients in 200+ countries with local sender IDs.

Personalization

Customize each message with recipient-specific variables.

Real-Time Analytics

Track delivery rates, opens, and engagement in real-time.

Compliance Built-In

Automatic opt-out handling and TCPA compliance.

Smart Scheduling

Schedule campaigns for optimal delivery times.

Use Cases

Marketing Campaigns

Promotional messages, flash sales, product launches

Transactional Alerts

Order confirmations, shipping updates, account notifications

Appointment Reminders

Healthcare, salons, service appointments

Emergency Alerts

Weather alerts, security notifications, system status

Predictable Pricing

Pay per active user, not per message. Send unlimited bulk SMS without worrying about per-message costs.

$0.005
per monthly active user
  • Unlimited messages per user
  • No per-message fees
  • No volume commitments
  • Broadcast API included
Start Free

Ready for Bulk Messaging?

Start sending bulk SMS campaigns in minutes. No contracts, no minimums, predictable pricing.

Bulk SMS API | Send Mass Text Messages | Zavu | Zavu