Example of MCP Server

{
  "name": "Github MCP Server",
  "nodes": [
    {
      "parameters": {
        "path": "0056a959-12e5-4c0b-80b9-9fa2a07b7c84"
      },
      "type": "@n8n/n8n-nodes-langchain.mcpTrigger",
      "typeVersion": 2,
      "position": [
        -120,
        -80
      ],
      "id": "f02424db-a2e0-482b-8a92-9235f7170663",
      "name": "MCP Server Trigger",
      "webhookId": "0056a959-12e5-4c0b-80b9-9fa2a07b7c84"
    },
    {
      "parameters": {
        "resource": "repository",
        "operation": "get",
        "owner": {
          "__rl": true,
          "value": "vtanathip",
          "mode": "name"
        },
        "repository": {
          "__rl": true,
          "value": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Repository_Name', ``, 'string') }}",
          "mode": "url",
          "__regex": "https:\\/\\/github.com\\/(?:[-_0-9a-zA-Z]+)\\/([-_.0-9a-zA-Z]+)"
        }
      },
      "type": "n8n-nodes-base.githubTool",
      "typeVersion": 1.1,
      "position": [
        -40,
        140
      ],
      "id": "089aaf52-58f8-4feb-924c-0e6e6104d5cf",
      "name": "Get a repository in GitHub",
      "webhookId": "57ca0c28-3580-4981-ba94-1e05d475aaf4",
      "credentials": {
        "githubApi": {
          "id": "ufhSNoYXPN5LpnmX",
          "name": "GitHub account"
        }
      }
    }
  ],
  "pinData": {},
  "connections": {
    "Get a repository in GitHub": {
      "ai_tool": [
        [
          {
            "node": "MCP Server Trigger",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "821a803b-49db-4044-9cf7-049021b69e1a",
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "1bc3987acc84b0fee9943c821aceb4d699c3d2305fd3c2affb8cfc49f7f6d590"
  },
  "id": "X9fSQQoIKqJtEZbl",
  "tags": []
}

Example of n8n + MCP workflow

{
  "name": "Github Assitance",
  "nodes": [
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.1,
      "position": [
        -1100,
        -160
      ],
      "id": "227b3a51-ac13-4d0f-ba8d-6d467f74492a",
      "name": "When chat message received",
      "webhookId": "4db4ed8d-1f41-4377-8291-bd82f2194ab1"
    },
    {
      "parameters": {
        "options": {
          "systemMessage": "=You're email writer, please use MCP client to connect with MCP Server\n"
        }
      },
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 2,
      "position": [
        -740,
        -180
      ],
      "id": "450a3831-967f-417d-be3b-647d0e4ce311",
      "name": "AI Agent"
    },
    {
      "parameters": {
        "modelName": "models/gemini-2.5-flash",
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "typeVersion": 1,
      "position": [
        -840,
        80
      ],
      "id": "16e1e4c3-f4a6-44a2-8aa6-6693aa06dcff",
      "name": "Google Gemini Chat Model",
      "credentials": {
        "googlePalmApi": {
          "id": "pWrCx6XIyGNxJyNv",
          "name": "Google GenAI"
        }
      }
    },
    {
      "parameters": {
        "sseEndpoint": "http://localhost:5678/mcp/0056a959-12e5-4c0b-80b9-9fa2a07b7c84"
      },
      "type": "@n8n/n8n-nodes-langchain.mcpClientTool",
      "typeVersion": 1,
      "position": [
        -340,
        60
      ],
      "id": "dff8f610-a5f2-4994-980a-8c65e000a0b9",
      "name": "MCP Client",
      "retryOnFail": true,
      "alwaysOutputData": true,
      "notesInFlow": false,
      "executeOnce": false
    },
    {
      "parameters": {},
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "typeVersion": 1.3,
      "position": [
        -600,
        80
      ],
      "id": "62052c3c-213a-49d1-8ef2-002bf7b23364",
      "name": "Simple Memory"
    }
  ],
  "pinData": {},
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Gemini Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "MCP Client": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "942d0138-ec97-4198-8c17-6cba678e3e57",
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "1bc3987acc84b0fee9943c821aceb4d699c3d2305fd3c2affb8cfc49f7f6d590"
  },
  "id": "Q0SxubeUR9SpEiQi",
  "tags": []
}