WhatsApp Gateway API - Send Messages Programmatically

Send WhatsApp Messages with One API Call

WhatsMate WhatsApp Gateway API empowers your application to send WhatsApp messages instantly via a simple REST API. Perfect for notifications, alerts, reminders, and automated messaging — no WhatsApp Business API complexity required.

Need to reach WhatsApp groups? Check out our Group Messaging API.

🚀 4 Simple Steps to Send WhatsApp Messages

1. Subscribe & Get Your Gateway Number

Subscribe Now to unlock your Premium Client ID, Secret, and the secret gateway number. Trial costs just $2.99. Plans scale as you grow.

2. Add Gateway to Your WhatsApp Contacts

Save the gateway number (+852 XXXX XXXX) to your WhatsApp contacts.

3. Register with the Gateway

Send "Hi" to the gateway from your WhatsApp client. You can register in 14 languages including Arabic, Chinese, French, German, Hindi, Japanese, Russian, Spanish, and more! Once registered, you're ready to receive messages.

4. Run Your Code & Send Messages

Copy your Client ID and Secret into the sample code. Make your first API call. That's it!

Start Sending Now 📺 Video Tutorials

🔥 Popular Use Cases

🔔 Appointment Reminders

Send automated appointment confirmations and reminders to reduce no-shows and improve attendance.

💳 Account & Billing Alerts

Notify users about account activity, payment confirmations, subscription renewals, and billing updates.

🏥 Healthcare Notifications

Deliver test results, medication reminders, and health alerts securely via WhatsApp.

Seeing is believing.
Watch how easy it is to send your first WhatsApp message.

Important Notes:

1. Registration Required: All recipients must send "Hi" to the gateway number before receiving messages.

2. Trial Account: $2.99 trial includes full access for learning and testing.

3. Higher Limits: Need more than 100 messages/day? Enterprise plan supports up to 1,000/day.

4. Got a question? Check out the FAQ. Alternatively, contact us and we will get back to you as soon as we can!

⏱️ Activation: Instant after subscription | 🔒 Secure: REST API with Client ID/Secret