Taseeb Saeed This workflow corresponds to n8n.io template #16897 — we link there as the canonical source.
This workflow follows the HTTP Request → OpenAI recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"id": "xnUrEqfLp0rNycNu",
"meta": {
"aiBuilderAssisted": true,
"templateCredsSetupCompleted": true
},
"name": "WhatsApp AI Voice Note Transcriber and Auto Reply",
"tags": [],
"nodes": [
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{
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{
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{
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{
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{
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"settings": {
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"executionOrder": "v1"
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"connections": {
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],
[
{
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},
"Create AI Reply": {
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{
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},
"If Real Message": {
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{
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],
[
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}
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},
"Set Text Prompt": {
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{
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},
"Set Audio Prompt": {
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{
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},
"Post WhatsApp Reply": {
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[
{
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},
"Download Audio Track": {
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[
{
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}
]
]
},
"Whisper Transcription": {
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{
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},
"Determine Message Type": {
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[
{
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}
],
[
{
"node": "Set Text Prompt",
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}
]
]
},
"Verify Webhook Trigger": {
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[
{
"node": "If Token Valid",
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}
]
]
},
"Extract Message Content": {
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[
{
"node": "If Real Message",
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}
]
]
},
"Message Webhook Trigger": {
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[
{
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}
]
]
},
"Fetch Audio Download URL": {
"main": [
[
{
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"type": "main",
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}
]
]
}
}
}
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About this workflow
This workflow receives WhatsApp Cloud API webhook events, transcribes incoming voice notes with OpenAI Whisper, generates a reply with OpenAI GPT-4o, and sends the response back to the sender via the WhatsApp Graph API while also handling plain text messages. Receives WhatsApp…
Source: https://n8n.io/workflows/16897/ — original creator credit. Request a take-down →
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