WhatsApp QR REST API

WhatsApp QR REST API sends messages through a connected WhatsApp QR device.

Endpoint

GET or POST {{baseUrl}}/api/qr/rest/send_message

Required parameters

Parameter	Type	Required	Description
`messageType`	string	Yes	`text`, `image`, `video`, `audio`, `document`, or `location`
`requestType`	string	Yes	`GET` or `POST`
`token`	string	Yes	QR REST API token
`from`	string	Yes	Sender phone with country code
`to`	string	Yes	Recipient phone with country code

Text message

curl -X POST "{{baseUrl}}/api/qr/rest/send_message" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer your_qr_token" \
  -d '{
    "messageType": "text",
    "requestType": "POST",
    "token": "your_qr_token",
    "from": "+447405993704",
    "to": "+255700000000",
    "text": "Hello from KarFlows"
  }'

Media parameters

Type	Required field	Optional
`image`	`imageUrl`	`caption`
`video`	`videoUrl`	`caption`
`audio`	`aacUrl`	none
`document`	`docUrl`	`caption`
`location`	`lat`, `long`	`title`

Notes

QR sessions can disconnect if the WhatsApp device is logged out or session files are missing.
For high-volume production delivery, use fallback with Unified Messaging API.
Always include country codes.

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Reference

WhatsApp QR REST API

Endpoint

Required parameters

Text message

Media parameters

Notes

​Endpoint

​Required parameters

​Text message

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Endpoint

Required parameters

Text message

Media parameters

Notes