Add and Update Contact

Supported & Tested

Save or update a WhatsApp contact name through the public Waplix Contacts API.

POSThttps://api.waplix.io/api/v1/contacts/upsert
Authentication
Authorization: Bearer YOUR_API_KEY
Parameters Specification
instance_id
stringReq

Required Waplix instance id

number
stringReq

Required phone number

name
stringReq

Required display name to save

Usage Notes
Verified on production instance 29854.
Request Payload Example
Request
curl -X POST "https://api.waplix.io/api/v1/api/v1/contacts/upsert" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "instance_id": "demo_instance",
  "number": "15551234567",
  "name": "John Doe"
}'
Success Response
Response · 200 OK
{
  "success": true,
  "data": {
    "instance_id": "demo_instance",
    "number": "15551234567",
    "name": "John Doe",
    "jid": "15551234567@s.whatsapp.net",
    "contact_id": "15551234567@s.whatsapp.net",
    "status": "saved"
  }
}
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