s CheapSMS.com - Bulk SMS, WhatsApp & VoIP Services Since 2002
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💬 Bulk WhatsApp
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🌐 RCS Message
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Powerful WhatsApp API for Modern Teams

Integrate robust WhatsApp messaging into your application or CRM with just a few lines of code. Built for high performance and global scale.


Get Started Now
● ● ●
const api = require('bulk-api');
api.send({
  to: '1234567890',
  msg: 'Hello World!'
});

Engineered for Scale

RESTful Architecture

Clean, standard REST API with comprehensive JSON documentation that makes integration a breeze for any tech stack.

Multi-Language SDKs

Native libraries available for PHP, Python, Node.js, Java, and .NET to get you up and running in minutes.

Real-time Webhooks

Get instant POST notifications for delivery status, read receipts, and incoming customer messages directly to your server.

Rich Media Support

Send more than just text. Programmatically deliver images, videos, PDFs, and location markers with full caption support.

Dynamic Retries

Intelligent rate limit handling and automatic retry logic ensure your messages reach the destination even during peak loads.

Dev Sandbox

A dedicated testing environment to validate your code and message flow without using live credits or affecting production data.

Technical Specifications

  • Throughput Up to 100 messages per second
  • Uptime 99.9% API Availability SLA
  • Security End-to-End Encryption & OAuth2 Auth
  • Session Persistent multi-device management
  • Webhooks Configurable URL with retry logic
  • Platforms Shopify, WooCommerce, Salesforce
  • Format Full JSON Body Support
  • Limits Dynamic rate-limiting based on tier

Build the Future of Communication

Get your API key today and start sending 100 messages for free in our sandbox.

Create Developer Account

Global Subscription

Developer

$0
€0 | £0
  • ✅ 100 Test Messages
  • ✅ Full API Access
  • ✅ Shared Instance
  • ✅ Webhook Support
Get API Key

Enterprise

$149
€138.40 | £116.80
  • ✅ White-label API
  • ✅ Multi-Device Sync
  • ✅ Custom Integrations
  • ✅ 24/7 Phone Support
Contact Sales
📞 24/7 Support: +91 9000936571
📧 info@cheapsms.com | 💬 Live Chat Available
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