WhatsApp API for Your Business — Send and Receive Thousands of Messages Automatically
Connect your systems to Rasayily through one unified API that supports every major official and unofficial WhatsApp provider (WaSender, Twilio, Waapi, Evolution API, WAHA) — with instant Webhooks for every incoming or outgoing message.
POST /api/messages/send
Authorization: Bearer {api_key}
{
"to": "9665XXXXXXXX",
"type": "text",
"message": "Hi! Your order is ready."
}
// Instant 200 OK response
{
"status": "sent",
"message_id": "wamid.HBg..."
}
Everything You Need from a WhatsApp API in One Place
From the first connection to receiving thousands of replies — Rasayily handles the technical details for you.
Every Provider Supported
Connect via WaSender, Twilio, Waapi, Evolution API, or WAHA — using the exact same code without changes.
Instant Webhooks
Get an instant notification on your server the moment a customer replies or a message status changes (delivered, read).
Local Agent Option
Run the connection from your own server or internal network to keep your data fully private.
Bulk Sending Endpoints
Call a single endpoint to send messages to a large number of contacts at once.
Full Media Support
Send images, PDFs, video, and voice notes alongside plain text messages.
Detailed Delivery Reports
Track every message status (sent, delivered, read, failed) from the dashboard or via the API.
Start Sending Programmatically in Minutes
Create an Account and Get an API Key
Sign up for free and get a unique API key straight from your dashboard.
Choose Your WhatsApp Provider
Connect your number via any supported provider, or run the Local Agent on your own server.
Send and Receive via the API
Use the documented endpoints to send messages and receive replies through Webhooks.
Common Questions About the WhatsApp API
Ready to Connect Your Business to the WhatsApp API?
Start your free trial today and get your API key within minutes.