Z-API WhatsAppInstall

Summary

Send audio

Inputs

• phone (required) — Contact number (or group ID) in international format, digits only. Example: 5511999999999.
• delayMessage — Delay in seconds before sending the message. Z-API recommends between 1 and 15 seconds. If 0, uses the API default behavior.
• audio (required) — Audio link or Base64 (Z-API: attribute "audio")

Output shape

API response object (typically includes success status)

May be empty on success; errors are thrown as NodeOperationError

Examples

Example 1: Send an audio file to a contact

Phone: 5511999999999, Audio: https://example.com/audio.mp3, Delay: 2 seconds

Example 2: Send base64‑encoded audio to a group

Phone: 5511999999999, Audio: data:audio/mp3;base64,..., Delay: 0

Example 3: Send audio with a 5‑second delay

Phone: 5511999999999, Audio: https://example.com/sound.mp3, Delay: 5 seconds

Links

• n8n community nodes installation guide