Sending

Send a text message

POST/v1/messages

Send a text message to a phone number or a chat. The call returns when WhatsApp has accepted the message (one ✓). Whether it reaches the phone is tracked separately, see Delivery status.

Request

POST https://api.api-supp.com/v1/messages

Field	Type	Notes
`recipient`	string	Required. Phone digits or a full JID (a group JID works too)
`message`	string	Required. The text
`type`	string	`"text"` (the default)

bash

curl -X POST "https://api.api-supp.com/v1/messages" \
  -H "Authorization: Bearer wat_YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"recipient": "14155550132", "message": "Your order has shipped"}'

Response

json

{
  "ok": true,
  "recipient": "14155550132@s.whatsapp.net",
  "wa_message_id": "3EB0CB97F37F91F563B060",
  "media": null
}

Keep wa_message_id to check delivery.

Errors

400 recipient missing
502 WhatsApp rejected the message
503 the number isn't connected right now

Hebrew, Arabic, emoji and accents: send the body from a UTF-8 file. Some shells (often on Windows) turn non-ASCII characters into ? before curl sees them, and the recipient gets question marks. Write the JSON to a file and send it with curl --data-binary @body.json -H "Content-Type: application/json; charset=utf-8". Use --data-binary, not -d.