Zain Khan This workflow corresponds to n8n.io template #17096 — we link there as the canonical source.
This workflow follows the Agent → Gmail recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "3pvpcttm68ggJm3u",
"name": "Template 7 - Lead Capture to Personalized Audio Follow-Up",
"tags": [],
"nodes": [
{
"id": "e26f2893-1286-4117-b439-2417aa335207",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
-1248,
96
],
"parameters": {
"path": "lead-capture",
"options": {},
"httpMethod": "POST",
"responseMode": "lastNode"
},
"typeVersion": 1
},
{
"id": "16b6ae65-29bb-4e1c-b49e-34f20431d5c8",
"name": "Set - Clean Fields",
"type": "n8n-nodes-base.set",
"position": [
-1024,
96
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "0d54b5cd-e107-4b4a-8945-a4a8bd3bdb48",
"name": "AI Agent - Qualify + Script",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-800,
96
],
"parameters": {
"text": "=Name: {{ $json.body.name }}\nEmail: {{ $json.body.email }}\nMessage: {{ $json.body.message }}",
"options": {
"systemMessage": "You are a sales qualification assistant. You must ALWAYS respond with ONLY a valid JSON object \u2014 no explanation, no markdown, no extra text before or after.\n\nGiven a lead's name, email, and message:\n\n1. Decide if they are qualified (true/false). Qualify if they show business need, scale, budget, or urgency.\n2. If qualified, write a 3-4 sentence personalized audio script using their first name, referencing their message, written to be spoken aloud.\n\nYour ENTIRE response must be exactly this format and nothing else:\n{\"qualified\": true, \"script\": \"Hey John, I just saw your note about scaling outreach...\"}\n\nOr if not qualified:\n{\"qualified\": false, \"script\": \"\"}\n\nDO NOT add any other text. DO NOT use markdown. DO NOT explain anything. ONLY output the JSON object."
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "3ecaaece-5332-4e7a-8d04-ee176233b3ae",
"name": "Code - Parse Agent JSON",
"type": "n8n-nodes-base.code",
"position": [
-448,
96
],
"parameters": {
"jsCode": "const raw = $input.first().json.output || '';\nconst cleaned = raw.replace(/```json|```/g, '').trim();\nlet parsed;\ntry {\n parsed = JSON.parse(cleaned);\n} catch (e) {\n throw new Error('AI Agent did not return valid JSON: ' + raw);\n}\nreturn [{\n json: {\n ...parsed,\n lead_name: $('Set - Clean Fields').first().json.lead_name,\n lead_email: $('Set - Clean Fields').first().json.lead_email,\n lead_message: $('Set - Clean Fields').first().json.lead_message\n }\n}];"
},
"typeVersion": 2
},
{
"id": "a53346dc-d1b3-4adc-bad6-95ac0583c28d",
"name": "IF - Qualified?",
"type": "n8n-nodes-base.if",
"position": [
-224,
96
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "cond1",
"operator": {
"type": "boolean",
"operation": "equals"
},
"leftValue": "={{ $json.qualified }}",
"rightValue": true
}
]
}
},
"typeVersion": 2
},
{
"id": "625e08ec-9a3c-4225-ae93-8a11db4cb847",
"name": "Smallest AI - Synthesize Speech",
"type": "n8n-nodes-smallestai.smallestai",
"position": [
0,
0
],
"parameters": {
"text": "={{ $json.script }}",
"output_format": "mp3",
"additionalOptions": {}
},
"credentials": {},
"typeVersion": 1
},
{
"id": "adb5acf9-55b4-4ab1-ae75-d15582fbc2a0",
"name": "Google Drive - Upload Audio",
"type": "n8n-nodes-base.googleDrive",
"position": [
272,
0
],
"parameters": {
"name": "={{ $('Set - Clean Fields').item.json.body.name }}_followup.mp3",
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "root"
}
},
"typeVersion": 3
},
{
"id": "693e7593-140c-4bb4-824e-093452cf726f",
"name": "Google Drive - Make Public",
"type": "n8n-nodes-base.googleDrive",
"position": [
448,
0
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "share",
"permissionsUi": {
"permissionsValues": {
"role": "reader",
"type": "anyone"
}
}
},
"typeVersion": 3
},
{
"id": "9308dc38-3a26-4e05-9547-60085c65413e",
"name": "Gmail - Send Follow-Up",
"type": "n8n-nodes-base.gmail",
"position": [
672,
0
],
"parameters": {
"sendTo": "={{ $('Set - Clean Fields').item.json.body.email }}",
"message": "=<p>Hi {{ $('Set - Clean Fields').item.json.body.name }},</p><p>We put together a quick personal audio message just for you:</p><p><a href=\"https://drive.google.com/file/d/{{ $('Google Drive - Upload Audio').first().json.id }}/view\">\ud83c\udfa7 Listen to your message</a></p><p>Looking forward to connecting!</p>",
"options": {},
"subject": "=A personal message for you, {{ $('Set - Clean Fields').item.json.body.name }}"
},
"typeVersion": 2
},
{
"id": "4eb903c1-c263-4ea8-9cd8-562ab94e4a56",
"name": "Slack - Notify Sales",
"type": "n8n-nodes-base.slack",
"position": [
1120,
0
],
"parameters": {
"text": "=\ud83d\udd14 *New Qualified Lead!*\n*Name:* {{ $('Code - Parse Agent JSON').first().json.lead_name }}\n*Email:* {{ $('Code - Parse Agent JSON').first().json.lead_email }}\n*Message:* {{ $('Code - Parse Agent JSON').first().json.lead_message }}\n\u2705 Personalized audio sent.",
"select": "channel",
"channelId": {
"__rl": true,
"mode": "id",
"value": "YOUR_SLACK_CHANNEL_ID"
},
"otherOptions": {}
},
"typeVersion": 2
},
{
"id": "99dd0822-97d4-492e-bd88-73a7fc9ed3c8",
"name": "Google Sheets - Log Unqualified",
"type": "n8n-nodes-base.googleSheets",
"position": [
0,
192
],
"parameters": {
"columns": {
"value": {
"lead_name": "={{ $('Set - Clean Fields').item.json.body.name }}",
"qualified": "False",
"timestamp": "={{ $now.toISO() }}",
"email_sent": "No",
"lead_email": "={{ $('Set - Clean Fields').item.json.body.email }}",
"lead_message": "={{ $('Set - Clean Fields').item.json.body.message }}"
},
"schema": [
{
"id": "timestamp",
"type": "string",
"display": true,
"required": false,
"displayName": "timestamp",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "lead_name",
"type": "string",
"display": true,
"required": false,
"displayName": "lead_name",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "lead_email",
"type": "string",
"display": true,
"required": false,
"displayName": "lead_email",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "lead_message",
"type": "string",
"display": true,
"required": false,
"displayName": "lead_message",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "qualified",
"type": "string",
"display": true,
"required": false,
"displayName": "qualified",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "audio_link",
"type": "string",
"display": true,
"required": false,
"displayName": "audio_link",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "email_sent",
"type": "string",
"display": true,
"required": false,
"displayName": "email_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "append",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1_wCDM_j7VblkRvEq76PUnaeRafnzdkRH73Vty7-7aY8/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1_wCDM_j7VblkRvEq76PUnaeRafnzdkRH73Vty7-7aY8",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1_wCDM_j7VblkRvEq76PUnaeRafnzdkRH73Vty7-7aY8/edit?usp=drivesdk",
"cachedResultName": "Leads"
}
},
"typeVersion": 4
},
{
"id": "c0905ae7-4064-4f0d-a695-46c8f2237e11",
"name": "Google Sheets - Log Qualified",
"type": "n8n-nodes-base.googleSheets",
"position": [
896,
0
],
"parameters": {
"columns": {
"value": {
"lead_name": "={{ $('Set - Clean Fields').item.json.body.name }}",
"qualified": "={{ $('IF - Qualified?').item.json.qualified }}",
"timestamp": "={{ $now.toISO() }}",
"audio_link": "={{ $('Google Drive - Upload Audio').item.json.webViewLink }}",
"email_sent": "yes",
"lead_email": "={{ $('Set - Clean Fields').item.json.body.email }}",
"lead_message": "={{ $('Set - Clean Fields').item.json.body.message }}"
},
"schema": [
{
"id": "timestamp",
"type": "string",
"display": true,
"required": false,
"displayName": "timestamp",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "lead_name",
"type": "string",
"display": true,
"required": false,
"displayName": "lead_name",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "lead_email",
"type": "string",
"display": true,
"required": false,
"displayName": "lead_email",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "lead_message",
"type": "string",
"display": true,
"required": false,
"displayName": "lead_message",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "qualified",
"type": "string",
"display": true,
"required": false,
"displayName": "qualified",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "audio_link",
"type": "string",
"display": true,
"required": false,
"displayName": "audio_link",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "email_sent",
"type": "string",
"display": true,
"required": false,
"displayName": "email_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "append",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1_wCDM_j7VblkRvEq76PUnaeRafnzdkRH73Vty7-7aY8/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1_wCDM_j7VblkRvEq76PUnaeRafnzdkRH73Vty7-7aY8",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1_wCDM_j7VblkRvEq76PUnaeRafnzdkRH73Vty7-7aY8/edit?usp=drivesdk",
"cachedResultName": "Leads"
}
},
"typeVersion": 4.7
},
{
"id": "997786d5-b310-4476-a361-9f1b6d252503",
"name": "Google Gemini Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
-800,
288
],
"parameters": {
"options": {}
},
"typeVersion": 1
},
{
"id": "29feeba9-08f7-497f-a989-3a7302e5e377",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1952,
-112
],
"parameters": {
"width": 560,
"height": 640,
"content": "## Lead Capture to Personalized Audio Follow-Up\n\n### How it works\nThis workflow automates lead qualification and creates an ultra-personalized response experience. When a new lead submits their details via a webhook, an AI Agent powered by Google Gemini analyzes their message to evaluate business need, scale, budget, and urgency. \n\n### Setup steps\n* Deploy the workflow to generate your live webhook URL path (`/lead-capture`).\n* Authenticate your **Google Gemini** configuration inside the LangChain Chat Model node.\n* Connect your **Smallest.ai** credentials to handle speech synthesis.\n* Link your target **Google Drive**, **Gmail**, **Google Sheets**, and **Slack** accounts to ensure seamless media delivery and tracking.\n\n### Customization\nYou can easily adjust the qualification criteria or script constraints by editing the system prompt in the **AI Agent - Qualify + Script** node. You can also modify the email HTML layout in the Gmail node to inject your personal branding or change the target channel ID for your Slack sales notifications."
},
"typeVersion": 1
},
{
"id": "c41e2238-3acb-458e-98d5-2add43d63402",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1296,
-64
],
"parameters": {
"color": 7,
"width": 768,
"height": 512,
"content": "## Ingestion & AI Intelligence\nCaptures incoming webhooks, routes them to an advanced LangChain Agent to evaluate sales alignment, and conditionally splits the execution path based on the qualification status."
},
"typeVersion": 1
},
{
"id": "09006f2b-b10d-47ab-8342-5ca2c2d5f5dc",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-480,
-64
],
"parameters": {
"color": 7,
"width": 640,
"height": 560,
"content": "## Voice Generation & Public Hosting\n"
},
"typeVersion": 1
},
{
"id": "6537df2c-5b7e-4007-b30f-0d4f5fc76d7b",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
208,
-64
],
"parameters": {
"color": 7,
"width": 1088,
"height": 320,
"content": "## Delivery & Pipeline Logging\n"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"binaryMode": "separate",
"executionOrder": "v1"
},
"versionId": "95c80bb6-5c29-475a-a5e2-5569a1df8372",
"nodeGroups": [],
"connections": {
"Webhook": {
"main": [
[
{
"node": "Set - Clean Fields",
"type": "main",
"index": 0
}
]
]
},
"IF - Qualified?": {
"main": [
[
{
"node": "Smallest AI - Synthesize Speech",
"type": "main",
"index": 0
}
],
[
{
"node": "Google Sheets - Log Unqualified",
"type": "main",
"index": 0
}
]
]
},
"Set - Clean Fields": {
"main": [
[
{
"node": "AI Agent - Qualify + Script",
"type": "main",
"index": 0
}
]
]
},
"Gmail - Send Follow-Up": {
"main": [
[
{
"node": "Google Sheets - Log Qualified",
"type": "main",
"index": 0
}
]
]
},
"Code - Parse Agent JSON": {
"main": [
[
{
"node": "IF - Qualified?",
"type": "main",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent - Qualify + Script",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Google Drive - Make Public": {
"main": [
[
{
"node": "Gmail - Send Follow-Up",
"type": "main",
"index": 0
}
]
]
},
"AI Agent - Qualify + Script": {
"main": [
[
{
"node": "Code - Parse Agent JSON",
"type": "main",
"index": 0
}
]
]
},
"Google Drive - Upload Audio": {
"main": [
[
{
"node": "Google Drive - Make Public",
"type": "main",
"index": 0
}
]
]
},
"Google Sheets - Log Qualified": {
"main": [
[
{
"node": "Slack - Notify Sales",
"type": "main",
"index": 0
}
]
]
},
"Smallest AI - Synthesize Speech": {
"main": [
[
{
"node": "Google Drive - Upload Audio",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
This workflow receives lead submissions via a webhook, uses Google Gemini to qualify the lead and write a personalized spoken follow-up script, and for qualified leads generates an MP3 with Smallest.ai, shares it from Google Drive, emails it via Gmail, logs outcomes to Google…
Source: https://n8n.io/workflows/17096/ — original creator credit. Request a take-down →
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