Developer REST API & Webhooks
Developer APIs &
WhatsApp Webhook Infrastructure
Send WhatsApp messages, trigger dynamic UPI reminders, and listen to inbound customer events with official Meta Cloud API speed. Zero broker delays.
Authentication
Authorization: Bearer <API_KEY>
Obtain your secret key in Settings > API Keys.
Base Production URL
https://api.quickseta.in/api/v1
Guaranteed 99.9% Meta Cloud API SLA.
Throughput
Up to 250 requests / sec
Dynamic concurrency with anti-ban queueing.
POST/api/v1/whatsapp/send
curl -X POST https://api.quickseta.in/api/v1/whatsapp/send \
-H "Authorization: Bearer qs_live_9a8f2190c74e" \
-H "Content-Type: application/json" \
-d '{
"to": "+919876543210",
"template": "fee_reminder_upi",
"parameters": {
"student_name": "Aarav Sharma",
"amount": "4500",
"due_date": "10 Oct 2026",
"upi_qr_url": "https://api.quickseta.in/pay/qr/4500"
}
}'Real-Time Inbound Webhooks
Receive instant HTTP POST callbacks whenever a customer sends a message or reads a broadcast.
{
"event": "messages.received",
"timestamp": 1728954020,
"data": {
"from": "+919876543210",
"message_id": "wamid.HBgLMTE...",
"type": "text",
"text": {
"body": "Fees paid via Google Pay UPI"
},
"customer": {
"name": "Rajesh Sharma",
"student_id": "STU-8821"
}
}
}Ready to Test In Your Own Environment?
Create a free sandbox account to generate live API keys and test with 1,000 free Meta Cloud API service conversations.