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POST
/
send-audio
curl --request POST \ --url https://zapi.hubmessage.io/channels/{channel_id}/token/{channel_token}/send-audio \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data ' { "phone": "5511999999999", "audio": "https://example.com/audio.mp3", "viewOnce": false } '
{
  "zaapId": "3999984263738042930CD6ECDE9VDWSA",
  "messageId": "D241XXXX732339502B68",
  "id": "D241XXXX732339502B68"
}

​
Overview

Method for sending audio messages. You can send via URL or Base64. The audio is sent as a voice message on WhatsApp.
When sending as Base64, you must include the prefix with the audio type, for example: data:audio/mpeg;base64,.
The response structure is identical to Z-API. Your existing code that processes these returns will continue working without changes.
File size limits and supported formats follow WhatsApp policies. See the official WhatsApp documentation for details.

Authorizations

​
Authorization
string
header
required

Secret Key generated in the Hub Message Security panel

Body

application/json
​
phone
string
required

Recipient phone number (country code + area code + number)

Example:

"5511999999999"

​
audio
string
required

Audio URL or Base64 data

​
viewOnce
boolean
default:false

Send as view-once message

​
delayMessage
integer

Delay in seconds before sending (1-15)

Required range: 1 <= x <= 15
​
delayTyping
integer

Seconds to display "Recording audio..." status (1-15)

Required range: 1 <= x <= 15

Response

Message sent successfully

​
zaapId
string

Internal identifier

​
messageId
string

WhatsApp message ID

​
id
string

Same value as messageId (compatibility)