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Discord Shopify Mcp Agent (agent)

Discord Shopify MCP Agent. Uses agent, lmChatGoogleVertex, memoryBufferWindow, mcpClientTool. Webhook trigger; 9 nodes.

Webhook trigger★★★★☆ complexityAI-powered9 nodesAgentLm Chat Google VertexMemory Buffer WindowMcp Client Tool
AI & RAG Trigger: Webhook Nodes: 9 Complexity: ★★★★☆ AI nodes: yes Added:

This workflow follows the Agent → Mcpclienttool 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": "Discord Shopify MCP Agent",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "discord",
        "responseMode": "lastNode",
        "options": {}
      },
      "id": "discord-webhook-001",
      "name": "Discord Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        240,
        300
      ]
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "skip-bot-messages",
              "leftValue": "={{ $json.body.content }}",
              "rightValue": "",
              "operator": {
                "type": "string",
                "operation": "notEmpty"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "id": "filter-empty-002",
      "name": "Filter Empty Messages",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        460,
        300
      ]
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "={{ $json.body.content }}",
        "options": {
          "systemMessage": "You are a Shopify merchant assistant replying in Discord. Use MCP tools for real store data \u2014 never invent numbers.\n\nRead: inventory, products (list_products for catalog / search_products for keywords), orders (search/get/fulfillment), revenue (today or by period), discounts, drafts, customers, abandoned checkouts, low stock, location inventory.\nWrite low-risk (execute immediately): create_discount_code, deactivate_discount_code, create_draft_order, send_draft_order_invoice, resend_order_invoice.\nWrite high-risk (CONFIRM required): update_inventory_quantity, fulfill_order, cancel_order, create_refund, set_variant_price, set_product_status. When a tool returns CONFIRMATION REQUIRED, tell the user to reply CONFIRM <token>. When they do, call confirm_pending_write.\n\nRules:\n- For 'list products' or 'what do we sell', call list_products (not search_products with a vague term).\n- Format currency from tools (e.g. 29.99 USD). Keep replies under 1900 chars.\n- After writes, summarize what changed.\n- Use search_orders with filters; get_fulfillment_status before fulfill_order.\n- If a tool errors, suggest localhost:3000/health."
        }
      },
      "id": "ai-agent-003",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 1.7,
      "position": [
        700,
        280
      ],
      "onError": "continueErrorOutput"
    },
    {
      "parameters": {
        "projectId": {
          "mode": "id",
          "value": ""
        },
        "modelName": "gemini-2.5-flash",
        "options": {}
      },
      "id": "vertex-model-004",
      "name": "Google Vertex Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleVertex",
      "typeVersion": 1,
      "position": [
        560,
        500
      ],
      "credentials": {
        "googleApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "sessionIdType": "customKey",
        "sessionKey": "={{ $('Discord Webhook').item.json.body.channel_id || $('Discord Webhook').item.json.body.user_id || 'discord-default' }}"
      },
      "id": "memory-005",
      "name": "Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "typeVersion": 1.3,
      "position": [
        700,
        500
      ]
    },
    {
      "parameters": {
        "serverTransport": "sse",
        "endpointUrl": "http://localhost:3000/sse",
        "include": "all",
        "options": {}
      },
      "id": "mcp-tool-006",
      "name": "Shopify MCP Tool",
      "type": "@n8n/n8n-nodes-langchain.mcpClientTool",
      "typeVersion": 1.2,
      "position": [
        840,
        500
      ]
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "has-output",
              "leftValue": "={{ $json.output }}",
              "rightValue": "",
              "operator": {
                "type": "string",
                "operation": "notEmpty"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "id": "check-success-007",
      "name": "Check Agent Output",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        940,
        280
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "empty-output-msg",
              "name": "output",
              "value": "Sorry, I couldn't generate a reply. Make sure the Shopify MCP server is running (`npm run mcp:mock` or `npm run mcp`), the workflow is active, and check the n8n execution log.",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "format-empty-010",
      "name": "Format Empty Response",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1180,
        380
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "agent-error-msg",
              "name": "output",
              "value": "={{ 'Sorry, I could not process that request. ' + ($json.error?.message || $json.message || 'Check the Shopify MCP server and n8n execution logs.') }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "format-error-011",
      "name": "Format Agent Error",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        940,
        480
      ]
    }
  ],
  "connections": {
    "Discord Webhook": {
      "main": [
        [
          {
            "node": "Filter Empty Messages",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Filter Empty Messages": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "AI Agent": {
      "main": [
        [
          {
            "node": "Check Agent Output",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Format Agent Error",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check Agent Output": {
      "main": [
        [],
        [
          {
            "node": "Format Empty Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Vertex Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "Shopify MCP Tool": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "active": false,
  "versionId": "2",
  "meta": {
    "templateCredsSetupCompleted": false
  },
  "id": "discord-shopify-mcp-agent"
}

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About this workflow

Discord Shopify MCP Agent. Uses agent, lmChatGoogleVertex, memoryBufferWindow, mcpClientTool. Webhook trigger; 9 nodes.

Source: https://github.com/Ai-assistant-KIRA/shopify-discord-agent/blob/main/n8n-workflows/discord-shopify-mcp-agent.json — original creator credit. Request a take-down →

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