Send audio

Send audio and voice messages via SDK or API

Voice message (voice note)

Voice messages display with a voice icon, automatic download, and optional transcription. Must be .ogg files with OPUS codec.

TypeScript SDK

import { WhatsAppClient } from '@kapso/whatsapp-cloud-api';

const client = new WhatsAppClient({
  baseUrl: 'https://api.kapso.ai/meta/whatsapp',
  kapsoApiKey: process.env.KAPSO_API_KEY!
});

await client.messages.sendAudio({
  phoneNumberId: '647015955153740',
  to: '15551234567',
  audio: {
    id: '1013859600285441',
    voice: true
  }
});

Basic audio message

Basic audio displays with a download icon and music icon. Supports AAC, AMR, MP3, MP4, and OGG formats (max 16MB).

TypeScript SDK

import { WhatsAppClient } from '@kapso/whatsapp-cloud-api';

const client = new WhatsAppClient({
  baseUrl: 'https://api.kapso.ai/meta/whatsapp',
  kapsoApiKey: process.env.KAPSO_API_KEY!
});

await client.messages.sendAudio({
  phoneNumberId: '647015955153740',
  to: '15551234567',
  audio: {
    link: 'https://example.com/ringtone.mp3'
  }
});