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AI Lead Auto-Responder for Gmail

Original n8n title: AI Lead Auto-responder

AI Lead Auto-Responder. Uses gmail, httpRequest. Manual trigger; 7 nodes.

Manual trigger★★☆☆☆ complexity7 nodesGmailHTTP Request
Marketing & Ads Trigger: Manual Nodes: 7 Complexity: ★★☆☆☆ Added:

This workflow follows the Gmail → 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 →

Download .json
{
  "name": "AI Lead Auto-Responder",
  "nodes": [
    {
      "parameters": {
        "mailbox": "=YOUR_GMAIL_ADDRESS",
        "labelIds": [
          "INBOX"
        ],
        "searchQuery": "is:unread from:*",
        "pollTimes": {
          "item": [
            {
              "mode": "everyX",
              "minute": 5
            }
          ]
        }
      },
      "id": "Gmail_Trigger",
      "name": "Gmail Trigger",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 2,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://api.anthropic.com/v1/messages",
        "authentication": "none",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "x-api-key",
              "value": "={{$env[\"ANTHROPIC_API_KEY\"]}}"
            },
            {
              "name": "anthropic-version",
              "value": "2023-06-01"
            }
          ]
        },
        "contentType": "application/json",
        "body": "={\n  \"model\": \"claude-3-5-sonnet-20241022\",\n  \"max_tokens\": 1024,\n  \"system\": \"You are a professional sales assistant. Analyze incoming customer inquiries and provide appropriate responses based on their intent. Keep responses concise, friendly, and professional. Include relevant next steps.\",\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Analyze this customer inquiry and draft a professional response:\\n\\nFrom: {{$node[\\\"Gmail Trigger\\\"].json.sender}}\\nSubject: {{$node[\\\"Gmail Trigger\\\"].json.subject}}\\nMessage:\\n{{$node[\\\"Gmail Trigger\\\"].json.body}}\\n\\nIntention: Determine if this is a sales inquiry, support request, partnership inquiry, or spam. Draft a 2-3 sentence response that addresses their needs professionally.\"\n    }\n  ]\n}"
      },
      "id": "Claude_Intent_Analyzer",
      "name": "Claude Intent Analyzer",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        450,
        300
      ]
    },
    {
      "parameters": {
        "resource": "message",
        "operation": "draft",
        "toRecipients": "={{$node[\"Gmail_Trigger\"].json.sender}}",
        "subject": "=Re: {{$node[\"Gmail_Trigger\"].json.subject}}",
        "message": "={{$node[\"Claude_Intent_Analyzer\"].json.content[0].text}}"
      },
      "id": "Gmail_Draft_Creator",
      "name": "Gmail Draft Creator",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 2,
      "position": [
        650,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://hooks.slack.com/services/YOUR/WEBHOOK/URL",
        "authentication": "none",
        "contentType": "application/json",
        "body": "={\n  \"text\": \"New Lead: {{$node[\\\"Gmail_Trigger\\\"].json.sender}}\",\n  \"blocks\": [\n    {\n      \"type\": \"header\",\n      \"text\": {\n        \"type\": \"plain_text\",\n        \"text\": \"\ud83d\udce7 New Customer Inquiry\"\n      }\n    },\n    {\n      \"type\": \"section\",\n      \"fields\": [\n        {\n          \"type\": \"mrkdwn\",\n          \"text\": \"*From:*\\n{{$node[\\\"Gmail_Trigger\\\"].json.sender}}\"\n        },\n        {\n          \"type\": \"mrkdwn\",\n          \"text\": \"*Subject:*\\n{{$node[\\\"Gmail_Trigger\\\"].json.subject}}\"\n        }\n      ]\n    },\n    {\n      \"type\": \"section\",\n      \"text\": {\n        \"type\": \"mrkdwn\",\n        \"text\": \"*Draft Response:*\\n{{$node[\\\"Claude_Intent_Analyzer\\\"].json.content[0].text}}\"\n      }\n    },\n    {\n      \"type\": \"actions\",\n      \"elements\": [\n        {\n          \"type\": \"button\",\n          \"text\": {\n            \"type\": \"plain_text\",\n            \"text\": \"Review in Gmail\"\n          },\n          \"url\": \"https://mail.google.com/mail/u/0/#search/{{$node[\\\"Gmail_Trigger\\\"].json.sender}}\"\n        }\n      ]\n    }\n  ]\n}"
      },
      "id": "Slack_Alert",
      "name": "Slack Alert",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        850,
        200
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://api.telegram.org/bot{{$env[\"TELEGRAM_BOT_TOKEN\"]}}/sendMessage",
        "authentication": "none",
        "contentType": "application/json",
        "body": "={\n  \"chat_id\": \"={{$env[\\\"TELEGRAM_CHAT_ID\\\"]}}\",\n  \"text\": \"\ud83d\udce7 <b>\u65b0\u5ba2\u8a62</b>\\n<b>\u4f86\u81ea:</b> {{$node[\\\"Gmail_Trigger\\\"].json.sender}}\\n<b>\u4e3b\u65e8:</b> {{$node[\\\"Gmail_Trigger\\\"].json.subject}}\\n\\n<b>\u56de\u8986:</b>\\n{{$node[\\\"Claude_Intent_Analyzer\\\"].json.content[0].text}}\",\n  \"parse_mode\": \"HTML\"\n}"
      },
      "id": "Telegram_Notification",
      "name": "Telegram Notification",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        850,
        400
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=YOUR_WEBHOOK_FOR_LOGGING",
        "authentication": "none",
        "contentType": "application/json",
        "body": "={\n  \"timestamp\": \"={{new Date().toISOString()}}\",\n  \"from\": \"{{$node[\\\"Gmail_Trigger\\\"].json.sender}}\",\n  \"subject\": \"{{$node[\\\"Gmail_Trigger\\\"].json.subject}}\",\n  \"ai_response\": \"{{$node[\\\"Claude_Intent_Analyzer\\\"].json.content[0].text}}\"\n}"
      },
      "id": "Database_Log",
      "name": "Database Log",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1050,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://api.telegram.org/bot{{$env[\"TELEGRAM_BOT_TOKEN\"]}}/sendMessage",
        "authentication": "none",
        "contentType": "application/json",
        "body": "={\n  \"chat_id\": \"={{$env[\\\"TELEGRAM_CHAT_ID\\\"]}}\",\n  \"text\": \"\u274c <b>Lead Responder Error</b>\\n{{$error.message}}\",\n  \"parse_mode\": \"HTML\"\n}"
      },
      "id": "Error_Handler",
      "name": "Error Handler",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1050,
        550
      ]
    }
  ],
  "connections": {
    "Gmail_Trigger": {
      "main": [
        [
          {
            "node": "Claude_Intent_Analyzer",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Claude_Intent_Analyzer": {
      "main": [
        [
          {
            "node": "Gmail_Draft_Creator",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Gmail_Draft_Creator": {
      "main": [
        [
          {
            "node": "Slack_Alert",
            "type": "main",
            "index": 0
          },
          {
            "node": "Telegram_Notification",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Slack_Alert": {
      "main": [
        [
          {
            "node": "Database_Log",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Telegram_Notification": {
      "main": [
        [
          {
            "node": "Database_Log",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1"
  },
  "id": "2"
}
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About this workflow

AI Lead Auto-Responder. Uses gmail, httpRequest. Manual trigger; 7 nodes.

Source: https://github.com/foxck016077/claude-code-starter/blob/main/n8n-templates/2-lead-responder.json — original creator credit. Request a take-down →

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