Built for Modern Engineering Teams
WhatsApp Developer API & Webhooks
Integrate high-speed WhatsApp notifications, template dispatches, and two-way conversations directly into your billing, ERP, or internal product stack with clean REST endpoints.
curl -X POST "https://api.avyannchatflow.com/api/v1/messages/send" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": "+919876543210",
"type": "template",
"template_name": "order_confirmation_v2",
"language": "en",
"parameters": ["Rahul", "ORD-87192", "₹2,499"]
}'Core REST API Endpoints
Clean JSON payload interfaces built with standard HTTP status codes.
POST/api/v1/messages/send
Dispatch free-form session messages or approved Meta templates.
GET/api/v1/templates
List active approved Meta message templates with variable parameters.
POST/api/v1/contacts
Create or update contacts, assign tags, and register deals.
POST/api/v1/campaigns
Trigger automated broadcast campaigns to custom contact segments.
Frequently Asked Questions
Details on rate limits, webhook delivery, and authentication.
Start building on Avyann ChatFlow API today
Create your developer account and generate an API key in 60 seconds. Full documentation and testing sandbox included.