Generate AI Meeting Briefs for Google Calendar with Gpt-4 & Madkudu Mcp

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": "Wlqg5aeZgBFNfQRm",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Prepare external Google Calendar meetings with AI using MadKudu MCP",
  "tags": [],
  "nodes": [
    {
      "id": "7c6a9973-5f65-4023-b883-aa248e72cb9b",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        192,
        0
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "hours"
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "2e638051-76b6-4a00-9f73-e149f6f7f1c6",
      "name": "Get many events",
      "type": "n8n-nodes-base.googleCalendar",
      "position": [
        384,
        0
      ],
      "parameters": {
        "options": {},
        "timeMax": "={{ $now.plus({ hour: 1 }) }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "user@example.com",
          "cachedResultName": "user@example.com"
        },
        "operation": "getAll"
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "ba2a5f9a-ab8b-49bd-9a4c-63a7369a9aee",
      "name": "Split Calendar Events",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        592,
        0
      ],
      "parameters": {
        "include": "allOtherFields",
        "options": {},
        "fieldToSplitOut": "id"
      },
      "typeVersion": 1
    },
    {
      "id": "68a13464-f449-4ca3-a2ff-05efbe3ed7fa",
      "name": "Keep meetings with external attendees",
      "type": "n8n-nodes-base.filter",
      "position": [
        1040,
        0
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "9fb0a08e-18b1-4eab-bc5b-3e63100b2b5a",
              "operator": {
                "type": "array",
                "operation": "lengthGt",
                "rightType": "number"
              },
              "leftValue": "={{ $('Split Calendar Events').item.json.attendees }}",
              "rightValue": 1
            },
            {
              "id": "eb7379a1-b7d0-45dc-be04-d9ae54426317",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              },
              "leftValue": "={{ $json.attendees.some(a => !a.email.includes('@'+$vars.my_company_domain)) }}",
              "rightValue": "true"
            }
          ]
        }
      },
      "typeVersion": 2.2
    },
    {
      "id": "13b751bb-3854-4df4-8405-dad3d14da24e",
      "name": "AI Agent - Research Attendees",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        1376,
        0
      ],
      "parameters": {
        "text": "=# Context\nYou are an executive assistant. You are tasked with helping me prepare for an upcoming meeting.\n\n# Instructions\nPlease research these attendees:  \n  {{ JSON.stringify($json.attendees.filter(a => !a.email.includes('@'+$vars.my_company_domain)).map(a => a.email)) }} \nand their associated company using the following research tools:\n\n- `madkudu-value-prop`\n- `madkudu-account-details`\n- `madkudu-account-activities`\n- `madkudu-account-brief-instruction`\n- `madkudu-account-top-persons`\n- `madkudu-person-details`\n- `madkudu-person-activities`\n\nAlso use, if relevant, the context about the meeting:\n\n\u2013 **meeting title:**\n{{ $json.summary }}\n\n\u2013 **meeting description:**\n{{ $json.description }}\n\n# Format\nAlways format the output in plain text with the following sections:\n\n## TL;DR\nThis section should help me understand how to approach the meeting.  \nKeep it high level, 2\u20133 sentences max.\n\n## Person Summary\nShare relevant information about the attendees (excluding madkudu.com, personal emails).\n\n## Account Summary\n### Overall Account Engagement including top persons\nThis section should highlight relevant people based on their engagement so Francis can name drop them.  \nFlag power users, growing usage, and any relevant trend.\n\n## Account Brief\nThis section should help me grasp the overall context of the account and frame the conversation accordingly.  \nShare the full account brief.\n",
        "options": {},
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 2.1
    },
    {
      "id": "82cd9069-f074-4fdd-99a1-d34f5d756376",
      "name": "Send summary as event",
      "type": "n8n-nodes-base.googleCalendar",
      "position": [
        1904,
        0
      ],
      "parameters": {
        "end": "={{ $('Keep meetings with external attendees').item.json.end.dateTime }}",
        "start": "={{ $('Keep meetings with external attendees').item.json.start.dateTime }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "user@example.com",
          "cachedResultName": "user@example.com"
        },
        "additionalFields": {
          "summary": "=Prep meeting  {{ $('Keep meetings with external attendees').item.json.summary }}",
          "description": "={{ $json.output }}"
        }
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "4d71746d-4f0e-4b34-813d-94b30c8cce8c",
      "name": "MadKudu MCP",
      "type": "@n8n/n8n-nodes-langchain.mcpClientTool",
      "position": [
        1536,
        224
      ],
      "parameters": {
        "sseEndpoint": "=https://mcp.madkudu.com/{{$vars.madkudu_api_key}}/sse\n"
      },
      "typeVersion": 1
    },
    {
      "id": "30ccf0f2-b22e-42fb-8170-6b7781149070",
      "name": "OpenAI Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        1376,
        224
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini",
          "cachedResultName": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "dbbfbf49-0783-4d0a-8015-a5a43d5c94f5",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -304,
        -208
      ],
      "parameters": {
        "width": 416,
        "height": 672,
        "content": "# Try it Out!\n\nThis workflow builds a **Meeting Prep AI Assistant**.\nIt sends a meeting invite at the same time as your scheduled meeting \u2014 including a summary of the external attendees and their companies in the event description.\n\nThis helps you show up prepared without manually researching attendees beforehand.\n\n## \ud83d\udca1 **How It Works**\n1. Checks for meetings every hour\nLooks ahead one hour for upcoming meetings in your calendar.\n\n2. Keeps only meetings with external attendees\nFilters out internal-only meetings based on your company domain (e.g. acme.com).\n\n3. Researches the attendees and companies\nUses MadKudu MCP, OpenAI, and other tools to gather info about attendees, past engagement, and company context.\n\n4. Adds the summary to your calendar\nA duplicate event is created at the same time, with the meeting brief in the description \u2014 visible to you only.\n\nNeed help?\nJoin the Discord or ask in the Forum.\n\nHappy Hacking!"
      },
      "typeVersion": 1
    },
    {
      "id": "31e1c1e5-7ecc-4a6a-8cba-42fb73e59532",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        768,
        -192
      ],
      "parameters": {
        "color": 7,
        "width": 544,
        "height": 352,
        "content": "### 2. Keep External Meetings only\nSet your company email domain first (e.g. acme.com) as a [Variable](https://docs.n8n.io/code/variables/#create-variables)   my_company_domain.\nIt is used to identify who are internal attendees vs external attendees. \n\nThe filter node keeps only meetings where there is at least 1 external attendees, aka 1 email with a domain different than your company domain. \nThis ensures you only receive meeting briefs for external-facing meetings"
      },
      "typeVersion": 1
    },
    {
      "id": "da6d92ff-4acd-4835-9e85-5c58c1efee11",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1360,
        -192
      ],
      "parameters": {
        "color": 7,
        "width": 416,
        "height": 352,
        "content": "### 3. Research Attendees and Generate Summary\nEnrich attendee & company data using MadKudu and summarize with AI.\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "b4e8cfc3-8ca0-459d-b819-6deeabfa90b1",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1824,
        -192
      ],
      "parameters": {
        "color": 7,
        "width": 416,
        "height": 352,
        "content": "### 4. Send Meeting invitation with summary\nCreate a private calendar event with the AI-generated brief.\n\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "4ff628a1-3eea-40c7-9c2b-1681c8c28e02",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        144,
        -192
      ],
      "parameters": {
        "color": 7,
        "width": 592,
        "height": 352,
        "content": "### 1. Check for new meetings every hour\nThe Scheduler is configured for every hour. \nIt will check in your Google Calendar for meetings in the next hour. Feel free to update the frequency if you have new meetings less frequently. \nThe Split allows preparing the events separately\n"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "4ac0ba48-715e-476e-836b-6800f0d2e777",
  "connections": {
    "MadKudu MCP": {
      "ai_tool": [
        [
          {
            "node": "AI Agent - Research Attendees",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent - Research Attendees",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Get many events": {
      "main": [
        [
          {
            "node": "Split Calendar Events",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "Get many events",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Split Calendar Events": {
      "main": [
        [
          {
            "node": "Keep meetings with external attendees",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "AI Agent - Research Attendees": {
      "main": [
        [
          {
            "node": "Send summary as event",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Keep meetings with external attendees": {
      "main": [
        [
          {
            "node": "AI Agent - Research Attendees",
            "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.

• googleCalendarOAuth2Api
• openAiApi

About this workflow

Automatically prepare for external meetings by generating AI-powered attendee briefs and sending them to your calendar, using MadKudu MCP.

Source: https://n8n.io/workflows/6752/ — original creator credit. Request a take-down →

More AI & RAG workflows → · Browse all categories →

Related workflows

Workflows that share integrations, category, or trigger type with this one. All free to copy and import.