n8n Team This workflow corresponds to n8n.io template #2035 — we link there as the canonical source.
This workflow follows the Agent → Execute Workflow Trigger 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": "ax8PJlp1UDb6EGFt",
"name": "Telegram AI Langchain bot",
"tags": [],
"nodes": [
{
"id": "e275f31f-6a5f-4444-8bf7-6c003a8e53df",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1100,
600
],
"parameters": {
"model": "gpt-4-1106-preview",
"options": {
"temperature": 0.7,
"frequencyPenalty": 0.2
}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "f25a6666-ff23-4372-afd0-4920a99aab6a",
"name": "Window Buffer Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
1220,
600
],
"parameters": {
"sessionKey": "=chat_with_{{ $('Listen for incoming events').first().json.message.chat.id }}",
"contextWindowLength": 10
},
"typeVersion": 1
},
{
"id": "96faef5d-0349-47fe-a7cf-150953490e90",
"name": "Telegram",
"type": "n8n-nodes-base.telegram",
"onError": "continueErrorOutput",
"position": [
1500,
380
],
"parameters": {
"text": "={{ $json.output }}",
"chatId": "={{ $('Listen for incoming events').first().json.message.from.id }}",
"additionalFields": {
"parse_mode": "HTML",
"appendAttribution": false
}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.1
},
{
"id": "5ad43039-aaa6-43cd-9b0f-1d02f4d9c4ff",
"name": "Correct errors",
"type": "n8n-nodes-base.telegram",
"position": [
1700,
380
],
"parameters": {
"text": "={{ $('AI Agent').item.json.output.replace(/&/g, \"&\").replace(/>/g, \">\").replace(/</g, \"<\").replace(/\"/g, \""\") }}",
"chatId": "={{ $('Listen for incoming events').first().json.message.from.id }}",
"additionalFields": {
"parse_mode": "HTML",
"appendAttribution": false
}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.1
},
{
"id": "0349a250-966a-4064-970a-8bcfba1647ad",
"name": "Execute Workflow Trigger",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
940,
900
],
"parameters": {},
"typeVersion": 1
},
{
"id": "69a45c1f-838f-49ce-9b89-75db6a8b876f",
"name": "Listen for incoming events",
"type": "n8n-nodes-base.telegramTrigger",
"position": [
940,
380
],
"parameters": {
"updates": [
"message"
],
"additionalFields": {}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "2f5d5f25-9870-40d6-ad42-52750e62de63",
"name": "Send back an image",
"type": "n8n-nodes-base.telegram",
"position": [
1300,
900
],
"parameters": {
"file": "={{ $json.data[0].url }}",
"chatId": "={{ $('Execute Workflow Trigger').first().json.chat_id }}",
"operation": "sendPhoto",
"additionalFields": {
"parse_mode": "HTML"
}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.1
},
{
"id": "50b43dbf-39e3-4d00-8e47-01e8c193cd1a",
"name": "add response field",
"type": "n8n-nodes-base.set",
"position": [
1480,
900
],
"parameters": {
"fields": {
"values": [
{
"name": "response",
"stringValue": "Success"
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "171bee83-c8e1-4af3-9d1c-12cb6ede4943",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
900,
840
],
"parameters": {
"width": 752.0361990950231,
"height": 247.42081447963798,
"content": "## Generate an image with Dall-E 3 and send it via Telegram"
},
"typeVersion": 1
},
{
"id": "4d81d201-70bf-4c80-9689-4b65851ad770",
"name": "Dall-E 3 Tool",
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"position": [
1360,
600
],
"parameters": {
"name": "Draw_Dalle_image",
"fields": {
"values": [
{
"name": "chat_id",
"stringValue": "={{ $('Listen for incoming events').first().json.message.chat.id }}"
}
]
},
"workflowId": "={{ $workflow.id }}",
"description": "Call this tool to request a Dall-E 3 model, when the user asks to draw something. Please send the user request for an image as an inline query string."
},
"typeVersion": 1
},
{
"id": "39d532d3-8c96-4722-9cb0-cad92ff39e94",
"name": "Generate image in Dall-E 3",
"type": "n8n-nodes-base.httpRequest",
"position": [
1120,
900
],
"parameters": {
"url": "https://api.openai.com/v1/images/generations",
"method": "POST",
"options": {},
"sendBody": true,
"authentication": "predefinedCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "dall-e-3"
},
{
"name": "prompt",
"value": "={{ $json.query }}"
},
{
"name": "n",
"value": 1
},
{
"name": "size",
"value": "1024x1024"
}
]
},
"nodeCredentialType": "openAiApi"
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 4.1
},
{
"id": "e5aa496d-55d3-456b-82bb-fe10a06c7338",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1140,
380
],
"parameters": {
"text": "={{ $json.message.text }}",
"options": {
"humanMessage": "TOOLS\n------\nAssistant can ask the user to use tools to look up information that may be helpful in answering the users original question. The tools the human can use are:\n\n{tools}\n\n{format_instructions}\n\nUSER'S INPUT\n--------------------\nHere is the user's input (remember to respond with a markdown code snippet of a json blob with a single action, and NOTHING else):\n\n{{input}}",
"systemMessage": "=You are a helpful AI assistant. You are chatting with the user named `{{ $json.message.from.first_name }}`. Today is {{ DateTime.fromISO($now).toLocaleString(DateTime.DATETIME_FULL) }}\n\nFrom time to time call a user by name (if the user name is provided). In your reply, always send a message in Telegram-supported HTML format. Here are the formatting instructions:\n1. The following tags are currently supported:\n<b>bold</b>, <strong>bold</strong>\n<i>italic</i>, <em>italic</em>\n<u>underline</u>, <ins>underline</ins>\n<s>strikethrough</s>, <strike>strikethrough</strike>, <del>strikethrough</del>\n<span class=\"tg-spoiler\">spoiler</span>, <tg-spoiler>spoiler</tg-spoiler>\n<b>bold <i>italic bold <s>italic bold strikethrough <span class=\"tg-spoiler\">italic bold strikethrough spoiler</span></s> <u>underline italic bold</u></i> bold</b>\n<a href=\"http://www.example.com/\">inline URL</a>\n<code>inline fixed-width code</code>\n<pre>pre-formatted fixed-width code block</pre>\n2. Any code that you send should be wrapped in these tags: <pre><code class=\"language-python\">pre-formatted fixed-width code block written in the Python programming language</code></pre>\nOther programming languages are supported as well.\n3. All <, > and & symbols that are not a part of a tag or an HTML entity must be replaced with the corresponding HTML entities (< with <, > with > and & with &)\n4. If the user sends you a message starting with / sign, it means this is a Telegram bot command. For example, all users send /start command as their first message. Try to figure out what these commands mean and reply accodringly\n"
}
},
"typeVersion": 1.1
}
],
"active": true,
"settings": {
"callerPolicy": "workflowsFromSameOwner",
"executionOrder": "v1",
"saveManualExecutions": true,
"saveDataSuccessExecution": "all"
},
"versionId": "3e9c27eb-1d2f-40bf-b284-4f6a1bece30c",
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Telegram",
"type": "main",
"index": 0
}
]
]
},
"Telegram": {
"main": [
[],
[
{
"node": "Correct errors",
"type": "main",
"index": 0
}
]
]
},
"Dall-E 3 Tool": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Send back an image": {
"main": [
[
{
"node": "add response field",
"type": "main",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Execute Workflow Trigger": {
"main": [
[
{
"node": "Generate image in Dall-E 3",
"type": "main",
"index": 0
}
]
]
},
"Generate image in Dall-E 3": {
"main": [
[
{
"node": "Send back an image",
"type": "main",
"index": 0
}
]
]
},
"Listen for incoming events": {
"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.
openAiApitelegramApi
Pro
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About this workflow
This workflow connects Telegram bots with LangChain nodes in n8n. The main AI Agent Node is configured as a Conversation Agent. It has a custom System Prompt which explains the reply formatting and provides some additional instructions. The AI Agent has several connections:…
Source: https://n8n.io/workflows/2035/ — original creator credit. Request a take-down →
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