Chat Agent - Lume's Everywhere

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": "Chat Agent - Lume's Everywhere",
  "nodes": [
    {
      "parameters": {
        "path": "chat-webhook",
        "httpMethod": "POST",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "e7b3c1a4-5d8f-4a2b-9c6e-1f3d8b7a0c2e",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "position": [
        -400,
        300
      ],
      "typeVersion": 1
    },
    {
      "parameters": {
        "model": {
          "__rl": true,
          "value": "deepseek-v4-pro",
          "mode": "list",
          "cachedResultName": "DEEPSEEK-V4-PRO"
        },
        "options": {}
      },
      "id": "a9c8e6f4-2d1b-4e7a-8c3f-5b0d9a1e6c4f",
      "name": "DeepSeek Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        16,
        600
      ],
      "typeVersion": 1.2,
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "={{ $json.message || 'Halo' }}",
        "hasOutputParser": true,
        "options": {
          "systemMessage": "Kamu adalah asisten ramah untuk Lume's Everywhere \u2014 aplikasi POS kuliner. Jawab pertanyaan casual, bantu brainstorming ide bisnis, resep, atau sekedar ngobrol santai. Jawab dalam Bahasa Indonesia yang santai dan hangat. Maks 500 karakter. Jika ditanya teknis tentang sistem, arahkan ke CTO Agent atau Business Assistant.",
          "maxIterations": 2
        }
      },
      "id": "f4e3d2c1-0b9a-4e7f-8d6c-5b4a3e2f1d0c",
      "name": "Chat Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        176,
        300
      ],
      "typeVersion": 3.1,
      "alwaysOutputData": false
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ JSON.stringify({ reply: $json.output || $json.message || 'Tidak ada jawaban' }) }}"
      },
      "id": "b2a1c3d5-e7f9-4a6b-8c0d-2e4f6a8b0c1e",
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        496,
        300
      ],
      "typeVersion": 1
    }
  ],
  "connections": {
    "Webhook Trigger": {
      "main": [
        [
          {
            "node": "Chat Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "DeepSeek Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Chat Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Chat Agent": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1",
    "binaryMode": "separate",
    "availableInMCP": false
  },
  "versionId": "v1-chat-agent",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "CHAT-AGENT-LUMES",
  "tags": [
    {
      "name": "chat",
      "color": "#8B5CF6"
    },
    {
      "name": "production",
      "color": "#00B341"
    }
  ]
}

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

About this workflow

Chat Agent - Lume's Everywhere. Uses lmChatOpenAi, agent. Webhook trigger; 4 nodes.

Source: https://github.com/hamdallah24/lumespos/blob/fd1e2ad4bcfd505dc70c11528d1cc310bd65401c/n8n-workflows/7-Chat-Agent.json — original creator credit. Request a take-down →

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