This workflow follows the Agent → Chat 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 →

Download .json

{
  "name": "Myself",
  "nodes": [
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.4,
      "position": [
        480,
        -128
      ],
      "id": "e03b2e66-ace6-49c6-b9cf-ceac6d876048",
      "name": "When chat message received"
    },
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3,
      "position": [
        -32,
        -144
      ],
      "id": "6d767e35-7e0b-4d62-bf58-f33790f5e2cb",
      "name": "AI Agent"
    },
    {
      "parameters": {},
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "typeVersion": 1.3,
      "position": [
        32,
        80
      ],
      "id": "70791c44-0737-47ff-b56f-3e3f43784144",
      "name": "Simple Memory"
    },
    {
      "parameters": {
        "model": {
          "__rl": true,
          "value": "openai/gpt-oss-20b",
          "mode": "list",
          "cachedResultName": "openai/gpt-oss-20b"
        },
        "responsesApiEnabled": false,
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1.3,
      "position": [
        -112,
        64
      ],
      "id": "c5093252-6d6e-469e-8ad4-8b23b170aca6",
      "name": "DeepSeek Chat Model",
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3,
      "position": [
        720,
        -128
      ],
      "id": "ab4ffcb5-2c05-4150-ae68-a5d6c2862757",
      "name": "AI Agent1"
    },
    {
      "parameters": {},
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "typeVersion": 1.3,
      "position": [
        832,
        128
      ],
      "id": "d39bf834-c2b8-4815-b38b-340964402808",
      "name": "Simple Memory1"
    },
    {
      "parameters": {
        "model": "google/gemma-3-27b-it:free",
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenRouter",
      "typeVersion": 1,
      "position": [
        640,
        112
      ],
      "id": "300180ee-a9dc-4569-9874-f65e87f345b3",
      "name": "OpenRouter Chat Model",
      "credentials": {
        "openRouterApi": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "AI Agent1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "DeepSeek Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory1": {
      "ai_memory": [
        [
          {
            "node": "AI Agent1",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "OpenRouter Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent1",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "0d6064b7-d7d8-4818-b6ea-d6d40578e849",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "ARJIJTzScgj2OOIq",
  "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.

openAiApi
openRouterApi

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About this workflow

Myself. Uses chatTrigger, agent, memoryBufferWindow, lmChatOpenAi. Chat trigger; 7 nodes.

Source: https://github.com/Percedal15019/AI-Automation/blob/main/workflow/Chatbot.json — original creator credit. Request a take-down →

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