Konstantin This workflow corresponds to n8n.io template #10579 — we link there as the canonical source.
This workflow follows the Agent → HTTP Request 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 →
{
"nodes": [
{
"id": "6f8e86fd-652b-4237-ac27-5b137fe504de",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-608,
256
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini",
"cachedResultName": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "50c59889-41c7-49bf-a84c-b4249e9dfa07",
"name": "Simple Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
-464,
256
],
"parameters": {
"sessionKey": "={{ $('Webhook').item.json.body.object.message.from_id }}",
"sessionIdType": "customKey",
"contextWindowLength": 20
},
"typeVersion": 1.3
},
{
"id": "e36e0c70-6201-4c28-9558-143e90d1b497",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
-2016,
64
],
"parameters": {
"path": "testvkwildbots",
"options": {
"responseData": "Here_is_yours_code"
},
"httpMethod": "POST"
},
"typeVersion": 2
},
{
"id": "52054156-b1e3-4841-b27b-2d502dab2cd1",
"name": "Transcribe",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
-1136,
176
],
"parameters": {
"options": {},
"resource": "audio",
"operation": "transcribe"
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.6
},
{
"id": "9601a615-ef8b-4acd-b75b-c97c13e44c95",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"onError": "continueErrorOutput",
"position": [
-608,
48
],
"parameters": {
"text": "={{ $json.prompt }}",
"options": {
"systemMessage": "=You are a helpful assistant that responds to user messages in the VK community \"Wildbots Test Ground for Youtube\". Your name is Betsy. You love to chat and are very friendly.\n\n## Latest reminders\n- Current date and time: {{$now}}",
"passthroughBinaryImages": false
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "a5120bfd-6f89-4c93-8942-ca386c68fb4d",
"name": "Send to VK",
"type": "n8n-nodes-base.httpRequest",
"position": [
-144,
32
],
"parameters": {
"url": "https://api.vk.com/method/messages.send?v=5.199&p1=v1",
"method": "POST",
"options": {},
"sendQuery": true,
"authentication": "genericCredentialType",
"genericAuthType": "httpBearerAuth",
"queryParameters": {
"parameters": [
{
"name": "user_id",
"value": "={{ $('Webhook').item.json.body.object.message.peer_id }}"
},
{
"name": "random_id",
"value": "={{ $('Webhook').item.json.body.object.message.random_id }}"
},
{
"name": "message",
"value": "={{ $json.output }}"
}
]
}
},
"credentials": {
"httpBearerAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "ed3357a9-36e9-49e7-8076-4885e708e7b4",
"name": "Get URL",
"type": "n8n-nodes-base.httpRequest",
"position": [
-1328,
176
],
"parameters": {
"url": "={{ $('Webhook').item.json.body.object.message.attachments[0].audio_message.link_mp3 }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "29cbe0fa-9d1b-48ce-9502-f59c5ec43f5f",
"name": "bring it to the form",
"type": "n8n-nodes-base.set",
"position": [
-848,
48
],
"parameters": {
"options": {
"dotNotation": false
},
"assignments": {
"assignments": [
{
"id": "09bbe290-fba2-46b3-8c76-1116ab6a456d",
"name": "prompt",
"type": "string",
"value": "={{ $json.text != null ? $json.text : $('Webhook').item.json.body?.object?.message?.text }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "ef6ecc40-826e-4519-811e-578e4227eb6d",
"name": "Filter Dubles",
"type": "n8n-nodes-base.filter",
"position": [
-1792,
64
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "c04ae197-8e7d-4019-b175-25238bda50f0",
"operator": {
"type": "number",
"operation": "notExists",
"singleValue": true
},
"leftValue": "={{ $json.headers['x-retry-counter'] }}",
"rightValue": ""
}
]
},
"looseTypeValidation": true
},
"typeVersion": 2.2
},
{
"id": "c443d16d-b10f-4b3b-aca1-15d6fc86adb6",
"name": "Voice/Text",
"type": "n8n-nodes-base.switch",
"position": [
-1568,
64
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "Text",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "8c844924-b2ed-48b0-935c-c66a8fd0c778",
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
},
"leftValue": "={{ $('Webhook').item.json.body.object.message.text }}",
"rightValue": ""
}
]
},
"renameOutput": true
},
{
"outputKey": "Voice",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "63e2c3b6-110d-4af6-8061-31677041a4c4",
"operator": {
"type": "string",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $('Webhook').item.json.body.object.message.attachments[0].audio_message.link_mp3 }}",
"rightValue": ""
}
]
},
"renameOutput": true
}
]
},
"options": {
"ignoreCase": true,
"allMatchingOutputs": false
},
"looseTypeValidation": true
},
"typeVersion": 3.2
},
{
"id": "36df7d43-4da6-4533-a2bd-411a7efaf19b",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2576,
-176
],
"parameters": {
"width": 512,
"height": 592,
"content": "## VK AI Chatbot with Voice Support\n\nBuild a smart chatbot for your VK community that understands both text and voice messages, powered by OpenAI's GPT-4.\n\n### How it works\n\nWhen someone messages your VK community, this workflow receives it and checks if it's text or voice. Voice messages get converted to text automatically. Then the AI generates a friendly response, remembering your previous conversations. The reply is sent back to VK instantly.\n\n### Setup steps\n\n1. **Connect your accounts:** Click on \"OpenAI Chat Model\" and \"Transcribe\" nodes - add your OpenAI API key. Then click \"Send to VK\" and \"Error\" nodes - add your VK community access token.\n2. **Link VK to n8n:** Copy the webhook URL from the Webhook node. In VK, go to your Community Settings \u2192 Manage \u2192 API Usage \u2192 Callback API \u2192 Add server. Paste the URL. VK will ask you to confirm - change the Webhook node's Response Data to the confirmation code VK gives you, then switch it back to `ok` after confirming.\n3. **Make it yours:** Open the \"AI Agent\" node and change the bot's name and personality in the system message.\n4. **Try it out:** Send a message to your VK community - the bot should reply!"
},
"typeVersion": 1
},
{
"id": "ececf4c2-7817-4fbd-932b-5d781210342f",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1840,
-48
],
"parameters": {
"color": 7,
"width": 400,
"height": 448,
"content": "## Receive & Filter\nGets messages from VK and removes duplicates."
},
"typeVersion": 1
},
{
"id": "ed749754-8fa0-4182-989e-bec3d3299b14",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1392,
-48
],
"parameters": {
"color": 7,
"width": 384,
"height": 448,
"content": "## Voice to Text\nConverts voice messages into text you can read."
},
"typeVersion": 1
},
{
"id": "596a6e49-5689-448e-80d0-89a87ba2c10e",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-720,
-64
],
"parameters": {
"color": 7,
"width": 400,
"height": 480,
"content": "## Smart Replies\nAI creates responses and remembers your chat history. Customize the personality here!"
},
"typeVersion": 1
},
{
"id": "79706b92-c6a5-4f47-bdf2-dbba311c65cb",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-304,
-64
],
"parameters": {
"color": 7,
"width": 352,
"height": 480,
"content": "## Send Back\nDelivers the AI's answer to your VK community."
},
"typeVersion": 1
},
{
"id": "cd35c747-fa83-4924-9552-464a44ee36ad",
"name": "Error VK",
"type": "n8n-nodes-base.httpRequest",
"position": [
-128,
192
],
"parameters": {
"url": "https://api.vk.com/method/messages.send?v=5.199&p1=v1",
"method": "POST",
"options": {},
"sendQuery": true,
"authentication": "genericCredentialType",
"genericAuthType": "httpBearerAuth",
"queryParameters": {
"parameters": [
{
"name": "user_id",
"value": "={{ $('Webhook').item.json.body.object.message.peer_id }}"
},
{
"name": "random_id",
"value": "={{ $('Webhook').item.json.body.object.message.random_id }}"
},
{
"name": "message",
"value": "=An error has occurred. Try to repeat your request again."
}
]
}
},
"credentials": {
"httpBearerAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "2c9c9877-9e08-4154-95ef-b2e396b48209",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
-304,
-288
],
"parameters": {
"color": 5,
"width": 352,
"height": 208,
"content": "@[youtube](Gg652GlP5lI)"
},
"typeVersion": 1
}
],
"connections": {
"Get URL": {
"main": [
[
{
"node": "Transcribe",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Filter Dubles",
"type": "main",
"index": 0
}
]
]
},
"AI Agent": {
"main": [
[
{
"node": "Send to VK",
"type": "main",
"index": 0
}
],
[
{
"node": "Error VK",
"type": "main",
"index": 0
}
]
]
},
"Transcribe": {
"main": [
[
{
"node": "bring it to the form",
"type": "main",
"index": 0
}
]
]
},
"Voice/Text": {
"main": [
[
{
"node": "bring it to the form",
"type": "main",
"index": 0
}
],
[
{
"node": "Get URL",
"type": "main",
"index": 0
}
]
]
},
"Filter Dubles": {
"main": [
[
{
"node": "Voice/Text",
"type": "main",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"bring it to the form": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
}
}
}
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.
httpBearerAuthopenAiApi
Pro
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About this workflow
This workflow powers an intelligent, conversational AI bot for VK that can understand and respond to both text and voice messages. The bot uses an AI agent with built-in memory, allowing it to remember the conversation history for each unique user (or in each chat) and answer…
Source: https://n8n.io/workflows/10579/ — original creator credit. Request a take-down →
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