This workflow follows the Agent → Gmail Tool 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 →
{
"name": "46-Voice+Text+Image_WhatsAppAgent",
"nodes": [
{
"parameters": {
"updates": [
"messages"
],
"options": {}
},
"type": "n8n-nodes-base.whatsAppTrigger",
"typeVersion": 1,
"position": [
-1952,
-560
],
"id": "7b187a5b-b3bd-45cf-b452-c6b927eb368e",
"name": "WhatsApp Trigger",
"credentials": {
"whatsAppTriggerApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"promptType": "define",
"text": "={{ $json.Text }}",
"options": {
"systemMessage": "=# Smart WhatsApp AI Agent\n\nYou are a **Smart WhatsApp AI Assistant**. \nYour task is to **understand text, images, voice, and files**, then take the right action using available tools.\n\n## Context\n- Users send **messages, images, audio, or files** via WhatsApp. \n- If an appointment is detected, confirm missing details, then **create a Google Calendar event**, notify the client politely by WhatsApp & email. \n- If a file is uploaded, store it in **Vector DB** and answer future questions from its content. \n- If the user ask about any File_Name.pdf use the **Answer questions with a vector store node** to retrive the answer from Pinecone vector store1\n- Always be **polite, clear, and professional**.\n\n## Tools\n- **Google Calendar (Create/Get/Delete events)** \n- **Gmail (Send emails)** \n- **Pinecone Vector Store1 (Answer user Query when he ask about pdf documents)** \n- **Calculator, Google Search** \n- **OpenAI Chat, Memory**\n\n## Output Format\nUse polite tone, structured steps, and confirm actions before execution. \n\n**Current date & time:** {{ $now.toString() }}\n"
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 2.1,
"position": [
-304,
-272
],
"id": "1bf8324a-dd26-4f41-b326-d80e4b00a22e",
"name": "AI Agent"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
-352,
192
],
"id": "756d2a2d-51bb-465a-842e-246a766b7d21",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $('WhatsApp Trigger').item.json.messages[0].from }}",
"contextWindowLength": 50
},
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"typeVersion": 1.3,
"position": [
-192,
192
],
"id": "1e5beaf0-0a56-4105-aa13-7a9a357db776",
"name": "Simple Memory"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "d7a238f1-9473-4731-ba88-eaa03f7e5826",
"name": "Text",
"value": "={{ $json[\"messages\"][0][\"text\"][\"body\"].match(/\\S+\\.pdf/i) ? $json[\"messages\"][0][\"text\"][\"body\"].match(/\\S+\\.pdf/i)[0] + \": \" + $json[\"messages\"][0][\"text\"][\"body\"] : $json[\"messages\"][0][\"text\"][\"body\"] }}",
"type": "string"
},
{
"id": "748c60f9-db44-41ae-9b76-c668268f7457",
"name": "File_Name",
"value": "={{ $json[\"messages\"][0][\"text\"][\"body\"].match(/\\S+\\.pdf/i) ? $json[\"messages\"][0][\"text\"][\"body\"].match(/\\S+\\.pdf/i)[0].replace(/(.+)\\.pdf$/i, function(match, filename) { return filename.toUpperCase() + '.pdf'; }) : \"\" }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-1232,
-560
],
"id": "100783b7-1ead-4365-b7b8-80d355079a99",
"name": "Text Prompt"
},
{
"parameters": {
"rules": {
"values": [
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "2cbe0b19-fe33-46f5-b056-9b5410e5c551",
"leftValue": "={{ $json.messages[0].text }}",
"rightValue": "",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "Text"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"leftValue": "={{ $json.messages[0].audio }}",
"rightValue": "",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
},
"id": "3592feb7-b293-4dc0-a931-238b4bae1721"
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "Audio"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "fab346c0-39c1-48ca-a88a-47d7a7a858b2",
"leftValue": "={{ $json.messages[0].image }}",
"rightValue": "",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "Image"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "994c7a12-997c-4da1-9b5d-7d0c51d0a4f8",
"leftValue": "={{ $json.messages[0].document }}",
"rightValue": "",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "Upload_Files"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.switch",
"typeVersion": 3.2,
"position": [
-1744,
-592
],
"id": "2161bf94-e7cb-4915-92fe-78c37ec863e2",
"name": "Switch"
},
{
"parameters": {
"resource": "media",
"operation": "mediaUrlGet",
"mediaGetId": "={{ $json.messages[0].audio.id }}"
},
"type": "n8n-nodes-base.whatsApp",
"typeVersion": 1,
"position": [
-1232,
-352
],
"id": "777407dc-d5e5-4429-8bf4-98c53e410b44",
"name": "Get URl",
"credentials": {
"whatsAppApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"url": "={{ $json.url }}",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-1056,
-352
],
"id": "2b7fbe73-60f1-4b70-af78-467921b8025a",
"name": "DownloadFile",
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "audio",
"operation": "transcribe",
"options": {
"language": "en"
}
},
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [
-784,
-352
],
"id": "7fe24115-9705-497a-8c36-c8a8fbcb00fa",
"name": "Transcribe a recording",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "d7a238f1-9473-4731-ba88-eaa03f7e5826",
"name": "Text",
"value": "={{ $json.text }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-624,
-352
],
"id": "a3ce0b9c-020c-45cc-8545-dc8953610baf",
"name": "Text Prompt1"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "695131dd-405c-41d6-b2f1-e8e8ccf94f42",
"leftValue": "={{ $('WhatsApp Trigger').item.json.messages[0].audio }}",
"rightValue": "",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
48,
-272
],
"id": "344f25d2-7322-408d-b043-95d5038c5dad",
"name": "If"
},
{
"parameters": {
"operation": "send",
"phoneNumberId": "785564744631972",
"recipientPhoneNumber": "={{ $('WhatsApp Trigger').item.json.contacts[0].wa_id }}",
"textBody": "={{ $json.output }}",
"additionalFields": {}
},
"type": "n8n-nodes-base.whatsApp",
"typeVersion": 1,
"position": [
592,
-112
],
"id": "65e9e71d-9729-4968-8d81-205bdb5781cb",
"name": "Respond With Text",
"credentials": {
"whatsAppApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "audio",
"input": "={{ $json.output }}",
"voice": "nova",
"options": {
"response_format": "opus"
}
},
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [
352,
-288
],
"id": "e4b566a4-0d26-43d7-8edf-a65bde2e86fd",
"name": "Generate audio",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "send",
"phoneNumberId": "785564744631972",
"recipientPhoneNumber": "={{ $('WhatsApp Trigger').item.json.contacts[0].wa_id }}",
"messageType": "audio",
"mediaPath": "useMedian8n",
"additionalFields": {}
},
"type": "n8n-nodes-base.whatsApp",
"typeVersion": 1,
"position": [
592,
-288
],
"id": "0c5048aa-cb45-45bb-922c-d0047ae5985b",
"name": "Respond with Audio",
"credentials": {
"whatsAppApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "media",
"operation": "mediaUrlGet",
"mediaGetId": "={{ $json.messages[0].image.id }}"
},
"type": "n8n-nodes-base.whatsApp",
"typeVersion": 1,
"position": [
-1232,
-128
],
"id": "fab6b1fa-3c92-424b-a4e1-567f34a473e8",
"name": "Download media",
"credentials": {
"whatsAppApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"url": "={{ $json.url }}",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-1040,
-128
],
"id": "5211be36-63ce-4c36-bcf5-0885c2238ed1",
"name": "Download Image",
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "image",
"operation": "analyze",
"modelId": {
"__rl": true,
"value": "chatgpt-4o-latest",
"mode": "list",
"cachedResultName": "CHATGPT-4O-LATEST"
},
"text": "Explain this image in details.",
"inputType": "base64",
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [
-784,
-128
],
"id": "2a74f5a3-a68b-49c6-9f9c-9458cf4db156",
"name": "Analyze image",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "b7afd536-a42f-434d-b7b0-91de7fafa0ef",
"name": "Text",
"value": "=# The author provided the image and the text \n\n## Image Description\n{{ $json.content }}\n\n## User Message\n{{ $('WhatsApp Trigger').item.json.messages[0].image.caption || \"Describe this image\" }}\n\n",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-624,
-128
],
"id": "f3c9d293-4a52-4d79-9e47-517878e449f3",
"name": "Text+Image Prompt"
},
{
"parameters": {},
"type": "@n8n/n8n-nodes-langchain.toolCalculator",
"typeVersion": 1,
"position": [
96,
192
],
"id": "20037fb7-2693-4dfa-91d0-1534f0e00c1e",
"name": "Calculator"
},
{
"parameters": {
"sendTo": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('To', ``, 'string') }}",
"subject": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Subject', ``, 'string') }}",
"emailType": "text",
"message": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Message', ``, 'string') }}",
"options": {
"appendAttribution": false
}
},
"type": "n8n-nodes-base.gmailTool",
"typeVersion": 2.1,
"position": [
-48,
192
],
"id": "e3fd4505-58e0-4448-a742-51c2f47e5919",
"name": "Send a message in Gmail",
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"content": "# Audio",
"height": 208,
"width": 960
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-1392,
-384
],
"id": "0e5b9620-27b4-4dfb-bf44-8794cc3ba670",
"name": "Sticky Note"
},
{
"parameters": {
"content": "# Image\n",
"height": 208,
"width": 960
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-1392,
-160
],
"id": "fc21a820-3585-491e-a528-bfa19b47c999",
"name": "Sticky Note1"
},
{
"parameters": {
"content": "# Text\n",
"height": 208,
"width": 528
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-1392,
-608
],
"id": "315e4813-392b-44f9-94e5-30365a2744f1",
"name": "Sticky Note2"
},
{
"parameters": {
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.toolSerpApi",
"typeVersion": 1,
"position": [
224,
192
],
"id": "238fdfe6-a9f9-449b-bc64-75be3acb544c",
"name": "Google Search",
"credentials": {
"serpApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"content": "# Tools\n",
"height": 544,
"width": 816,
"color": 3
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-400,
80
],
"id": "fe7ca9e6-5aea-4f3e-99c9-e63ec6c66716",
"name": "Sticky Note3"
},
{
"parameters": {
"content": "# Agent + Output\n\n\n",
"height": 432,
"width": 1248,
"color": 4
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-400,
-384
],
"id": "4199752d-86a8-4314-90da-161ca3e199cf",
"name": "Sticky Note6"
},
{
"parameters": {
"content": "# Input\n",
"height": 208,
"width": 480,
"color": 5
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-2032,
-608
],
"id": "918992cb-6a71-4183-8d42-4a177bf75032",
"name": "Sticky Note7"
},
{
"parameters": {
"calendar": {
"__rl": true,
"value": "alyfar601@gmail.com",
"mode": "list",
"cachedResultName": "alyfar601@gmail.com"
},
"start": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Start', ``, 'string') }}",
"end": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('End', ``, 'string') }}",
"additionalFields": {
"attendees": [
"={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('attendees0_Attendees', ``, 'string') }}"
],
"description": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Description', ``, 'string') }}",
"summary": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Summary', ``, 'string') }}"
}
},
"type": "n8n-nodes-base.googleCalendarTool",
"typeVersion": 1.3,
"position": [
-304,
400
],
"id": "02895fbd-cc98-4fe0-b5dd-9e78c71d3d05",
"name": "Create an event in Google Calendar",
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "get",
"calendar": {
"__rl": true,
"value": "alyfar601@gmail.com",
"mode": "list",
"cachedResultName": "alyfar601@gmail.com"
},
"eventId": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Event_ID', ``, 'string') }}",
"options": {}
},
"type": "n8n-nodes-base.googleCalendarTool",
"typeVersion": 1.3,
"position": [
-144,
400
],
"id": "ea1d0bc3-58e4-40f4-b38d-81c550ef99ad",
"name": "Get an event in Google Calendar",
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "delete",
"calendar": {
"__rl": true,
"value": "alyfar601@gmail.com",
"mode": "list",
"cachedResultName": "alyfar601@gmail.com"
},
"eventId": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Event_ID', ``, 'string') }}",
"options": {}
},
"type": "n8n-nodes-base.googleCalendarTool",
"typeVersion": 1.3,
"position": [
48,
400
],
"id": "815d3e4e-185c-43f7-9c15-eef54755ad32",
"name": "Delete an event in Google Calendar",
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
}
}
],
"connections": {
"WhatsApp Trigger": {
"main": [
[
{
"node": "Switch",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"AI Agent": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"Text Prompt": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Switch": {
"main": [
[
{
"node": "Text Prompt",
"type": "main",
"index": 0
}
],
[
{
"node": "Get URl",
"type": "main",
"index": 0
}
],
[
{
"node": "Download media",
"type": "main",
"index": 0
}
],
[]
]
},
"Get URl": {
"main": [
[
{
"node": "DownloadFile",
"type": "main",
"index": 0
}
]
]
},
"DownloadFile": {
"main": [
[
{
"node": "Transcribe a recording",
"type": "main",
"index": 0
}
]
]
},
"Transcribe a recording": {
"main": [
[
{
"node": "Text Prompt1",
"type": "main",
"index": 0
}
]
]
},
"Text Prompt1": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"If": {
"main": [
[
{
"node": "Generate audio",
"type": "main",
"index": 0
}
],
[
{
"node": "Respond With Text",
"type": "main",
"index": 0
}
]
]
},
"Generate audio": {
"main": [
[
{
"node": "Respond with Audio",
"type": "main",
"index": 0
}
]
]
},
"Download media": {
"main": [
[
{
"node": "Download Image",
"type": "main",
"index": 0
}
]
]
},
"Download Image": {
"main": [
[
{
"node": "Analyze image",
"type": "main",
"index": 0
}
]
]
},
"Analyze image": {
"main": [
[
{
"node": "Text+Image Prompt",
"type": "main",
"index": 0
}
]
]
},
"Text+Image Prompt": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Calculator": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Send a message in Gmail": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Google Search": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Create an event in Google Calendar": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Get an event in Google Calendar": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Delete an event in Google Calendar": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "a726eec1-904a-4d9b-9950-789416f4ad6a",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "qc33qRUDrrTxu93P",
"tags": []
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
gmailOAuth2googleCalendarOAuth2ApihttpHeaderAuthopenAiApiserpApiwhatsAppApiwhatsAppTriggerApi
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About this workflow
46-Voice+Text+Image_WhatsAppAgent. Uses whatsAppTrigger, agent, lmChatOpenAi, memoryBufferWindow. Event-driven trigger; 30 nodes.
Source: https://github.com/MohElshamy1994/n8n-course-Projetcs/blob/f37fce8a58c6e943ea6021f17a9768c72abc71fa/workflows/46-Voice+Text+Image_WhatsAppAgent.json — original creator credit. Request a take-down →
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