POST
/
v1
/
whatsapp
/
messages
Send a WhatsApp message
curl --request POST \
  --url https://api.wavix.com/v1/whatsapp/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "from": "+14155550100",
  "to": "+447537151866",
  "idempotency_key": "order-1001-shipped",
  "template": {
    "name": "order_shipped",
    "language": "en_US",
    "placeholders": [
      "Maria",
      "#1001"
    ]
  }
}
'
{
  "message": {
    "uuid": "3a525ca2-6909-4c72-9399-905adf7f3a74",
    "from": "+14155550100",
    "to": "+447537151866",
    "status": "delivered",
    "template": {
      "name": "order_shipped",
      "language": "en_US"
    },
    "created_at": "2026-01-15T10:30:00.123Z"
  }
}

Authorizations

​
Authorization
string
header
required

Wavix API key. Pass as Authorization: Bearer <api_key>. Keys support per-resource scopes (none / read / write). See Restricted keys and scopes.

Body

application/json

Attributes of the message to send.

Attributes of a WhatsApp template message to send. Consumed by whatsapp_messages_send.

​
from
string
required

Phone number of a sender registered on your account, in E.164 format, as returned by whatsapp_senders_list. The leading + is optional.

Pattern: ^\+?\d{6,20}$
Example:

"+14155550100"

​
to
string
required

Recipient's phone number in E.164 format. The leading + is optional.

Pattern: ^\+?\d{6,20}$
Example:

"+447537151866"

​
template
WhatsAppSendTemplate · object
required

The template to send and the values for its dynamic parts. Consumed in template by whatsapp_messages_send.

​
idempotency_key
string

Key that makes the send safe to retry, unique per account. Matching is exact, so case and accents are significant - ORDER-1 and order-1 are two different keys and both are sent. Printable ASCII only. Must not begin with campaign:, a prefix reserved for campaign messages. A request with a key in that namespace is rejected.

Maximum string length: 128
Pattern: ^[\x20-\x7e]*$
Example:

"order-1001-shipped"

Response

The message created by the earlier send with the same idempotency_key.

Returned by whatsapp_messages_send.

​
message
WhatsAppMessage · object
required

A WhatsApp message you sent. Returned by whatsapp_messages_send.