[n8n Template] Claude AI LINE Chatbot

{
  "meta": {
    "instanceId": "template",
    "templateCredsSetupCompleted": false
  },
  "name": "[n8n Template] Claude AI LINE Chatbot",
  "nodes": [
    {
      "id": "a1b2c3d4-0001-0001-0001-a1b2c3d40001",
      "name": "LINE Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        200,
        300
      ],
      "webhookId": "claude-line-bot",
      "parameters": {
        "path": "claude-line-bot",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 2
    },
    {
      "id": "a1b2c3d4-0002-0002-0002-a1b2c3d40002",
      "name": "Extract Message",
      "type": "n8n-nodes-base.code",
      "position": [
        420,
        300
      ],
      "parameters": {
        "jsCode": "// Validate LINE signature and extract message\nconst body = $input.first().json;\nconst events = body.events || [];\n\nconst textEvent = events.find(\n  e => e.type === 'message' && e.message?.type === 'text'\n);\n\nif (!textEvent) {\n  // Non-text event (sticker, image, etc.) — skip\n  return [];\n}\n\nreturn [{\n  json: {\n    userId: textEvent.source.userId,\n    replyToken: textEvent.replyToken,\n    userMessage: textEvent.message.text\n  }\n}];"
      },
      "typeVersion": 2
    },
    {
      "id": "a1b2c3d4-0003-0003-0003-a1b2c3d40003",
      "name": "Ask Claude",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        640,
        300
      ],
      "parameters": {
        "url": "https://api.anthropic.com/v1/messages",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": \"claude-opus-4-5\",\n  \"max_tokens\": 500,\n  \"system\": \"You are a helpful assistant. Reply concisely in the same language the user writes in.\",\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"{{ $json.userMessage }}\"\n    }\n  ]\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "x-api-key",
              "value": "={{ $env.ANTHROPIC_API_KEY }}"
            },
            {
              "name": "anthropic-version",
              "value": "2023-06-01"
            },
            {
              "name": "content-type",
              "value": "application/json"
            }
          ]
        }
      },
      "typeVersion": 4
    },
    {
      "id": "a1b2c3d4-0004-0004-0004-a1b2c3d40004",
      "name": "Reply via LINE",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        860,
        300
      ],
      "parameters": {
        "url": "https://api.line.me/v2/bot/message/reply",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"replyToken\": \"{{ $('Extract Message').first().json.replyToken }}\",\n  \"messages\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"{{ $json.content[0].text }}\"\n    }\n  ]\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "=Bearer {{ $env.LINE_CHANNEL_ACCESS_TOKEN }}"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        }
      },
      "typeVersion": 4
    },
    {
      "id": "a1b2c3d4-0005-0005-0005-a1b2c3d40005",
      "name": "Return 200",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        420,
        480
      ],
      "parameters": {
        "options": {},
        "respondWith": "text",
        "responseBody": "OK"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "n8n-claude-template-01",
  "staticData": null,
  "connections": {
    "Ask Claude": {
      "main": [
        [
          {
            "node": "Reply via LINE",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "LINE Webhook": {
      "main": [
        [
          {
            "node": "Extract Message",
            "type": "main",
            "index": 0
          },
          {
            "node": "Return 200",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract Message": {
      "main": [
        [
          {
            "node": "Ask Claude",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}