Send audio

Send audio and voice messages on WhatsApp.

Deliver voice notes or audio files — spoken updates, pronunciation guides, or support messages customers can listen to on the go.

At a glance

Item	Detail
`type`	`audio`
Supported formats	AAC, AMR, MP3, M4A (`audio/mp4`), OGG
Maximum file size	16 MB
Media field	`content.media_url` (aliases: `media`, `url`)
`content.media_type`	Optional; inferred from `type: audio` when omitted
Channel support	Official and unofficial

Request body

Field	Required	Description
`channel_id`	Yes	Sender channel ID
`to`	Yes	Recipient phone number
`type`	Yes	`audio`
`content.media_url`	Yes	HTTPS URL to the audio file

Example

curl -X POST "https://api.wazapin.com/v1/messages" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "channel_id": "wzp_abc123",
    "to": "6281234567890",
    "type": "audio",
    "content": {
      "media_url": "https://cdn.example.com/audio/voice-note.ogg"
    }
  }'

import { WazapinClient, audioMessage } from "@wazapin/sdk";

const wazapin = new WazapinClient({ apiKey: process.env.WAZAPIN_API_KEY! });

await wazapin.messages.send(
  audioMessage({
    channel_id: "wzp_abc123",
    to: "6281234567890",
    media_url: "https://cdn.example.com/audio/voice-note.ogg",
  }),
);

import requests

requests.post(
    "https://api.wazapin.com/v1/messages",
    headers={"X-Api-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
        "channel_id": "wzp_abc123",
        "to": "6281234567890",
        "type": "audio",
        "content": {"media_url": "https://cdn.example.com/audio/voice-note.ogg"},
    },
    timeout=30,
).raise_for_status()