Build a Scalable AI Chatbot with Gpt-4 and Pipedream: Calendly, Gmail…

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": "muEszdmquRYSUdM9",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Pipedream's MCP server",
  "tags": [],
  "nodes": [
    {
      "id": "d498ed94-65f4-4560-a186-ba324506f73f",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
        16,
        -64
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.1
    },
    {
      "id": "866a327c-22a2-4a3a-8993-75ae9e836c71",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        240,
        -64
      ],
      "parameters": {
        "options": {
          "systemMessage": "You are a helpful assistant"
        }
      },
      "typeVersion": 2.1
    },
    {
      "id": "457b6172-4519-4bf9-aa84-44dbf14befb6",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        112,
        144
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "cd652804-a75c-4efd-b197-92810f94bb5f",
      "name": "Calendly",
      "type": "@n8n/n8n-nodes-langchain.mcpClientTool",
      "position": [
        400,
        144
      ],
      "parameters": {
        "sseEndpoint": "https://mcp.pipedream.net/xxx/calendly_v2"
      },
      "typeVersion": 1
    },
    {
      "id": "ae996f82-1e34-486a-af82-2fdcfe32c3d9",
      "name": "Simple Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        256,
        144
      ],
      "parameters": {},
      "typeVersion": 1.3
    },
    {
      "id": "4465fc4e-68b0-456d-828a-bff296038a34",
      "name": "Gmail",
      "type": "@n8n/n8n-nodes-langchain.mcpClientTool",
      "position": [
        512,
        144
      ],
      "parameters": {
        "sseEndpoint": "https://mcp.pipedream.net/xxx/gmail"
      },
      "typeVersion": 1
    },
    {
      "id": "32e919f8-6e73-4aa3-9148-93f920930f3b",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -352,
        -768
      ],
      "parameters": {
        "width": 624,
        "height": 656,
        "content": "## Pipedream's MCP server\n\nAdd 2,700+ APIs and 10,000+ tools to your AI assistant for free. Connect your accounts securely and revoke access at any time.\n\n![image](https://n3wstorage.b-cdn.net/n3witalia/pipedream_1.png)\n"
      },
      "typeVersion": 1
    },
    {
      "id": "79a54171-4f68-418c-8ad2-b30e2ed23fe5",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        288,
        -768
      ],
      "parameters": {
        "width": 624,
        "height": 656,
        "content": "### How to work\n\n- Sign up on [Pipedream](https://mcp.pipedream.com/)\n- Manage your MCP server and connected accounts\n- Copy and paste your MCP Server URL https://mcp.pipedream.net/xxx/{app_slug} into the MCP SSE Endpoint node in n8n.\n\nExample:\n- https://mcp.pipedream.net/xxx/calendly_v2 for Calendly\n- https://mcp.pipedream.net/xxx/calendly_v2 for Gmail\n\n\n![image](https://n3wstorage.b-cdn.net/n3witalia/pipedream_2.png)"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "d75b30d2-ecdf-4ac7-8d4b-72c5961c7a7c",
  "connections": {
    "Gmail": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Calendly": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "When chat message received": {
      "main": [
        [
          {
            "node": "AI Agent",
            "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.

• openAiApi

About this workflow

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

Source: https://n8n.io/workflows/5821/ — original creator credit. Request a take-down →

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