{
  "workflow": {
    "id": 3631,
    "name": "Build your own PostgreSQL MCP server",
    "views": 8804,
    "recentViews": 1,
    "totalViews": 8804,
    "createdAt": "2025-04-21T10:09:09.689Z",
    "description": "### This n8n demonstrates how to build a simple PostgreSQL MCP server to manage your PostgreSQL database such as HR, Payroll, Sale, Inventory and More!\n\nThis MCP example is based off an official MCP reference implementation which can be found here -[https://github.com/modelcontextprotocol/servers/tree/main/src/postgres](https://github.com/modelcontextprotocol/servers/tree/main/src/postgres)\n\n### How it works\n* A MCP server trigger is used and connected to 5 tools: 2 postgreSQL and 3 custom workflow.\n* The 2 postgreSQL tools are simple read-only queries and as such, the postgreSQL tool can be simply used.\n* The 3 custom workflow tools are used for select, insert and update queries as these are operations which require a bit more discretion.\n* Whilst it may be easier to allow the agent to use raw SQL queries, we may find it a little safer to just allow for the parameters instead. The custom workflow tool allows us to define this restricted schema for tool input which we'll use to construct the SQL statement ourselves.\n* All 3 custom workflow tools trigger the same \"Execute workflow\" trigger in this very template which has a switch to route the operation to the correct handler.\n* Finally, we use our standard PostgreSQL node to handle select, insert and update operations. The responses are then sent back to the the MCP client.\n\n### How to use\n* This PostgreSQL MCP server allows any compatible MCP client to manage a PostgreSQL database by supporting select, create and update operations. You will need to have a database available before you can use this server.\n* Connect your MCP client by following the n8n guidelines here - https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-langchain.mcptrigger/#integrating-with-claude-desktop\n* Try the following queries in your MCP client:\n  * \"Please help me check if Alex has an entry in the users table. If not, please help me create a record for her.\"\n  * \"What was the top selling product in the last week?\"\n  * \"How many high priority support tickets are still open this morning?\"\n\n### Requirements\n* PostgreSQL for database. This can be an external database such as Supabase or one you can host internally.\n* MCP Client or Agent for usage such as Claude Desktop - https://claude.ai/download\n\n### Customising this workflow\n* If the scope of schemas or tables is too open, try restrict it so the MCP serves a specific purpose for business operations. eg. Confine the querying and editing to HR only tables before providing access to people in that department.\n* Remember to set the MCP server to require credentials before going to production and sharing this MCP server with others!",
    "workflow": {
      "meta": {
        "instanceId": "408f9fb9940c3cb18ffdef0e0150fe342d6e655c3a9fac21f0f644e8bedabcd9",
        "templateCredsSetupCompleted": true
      },
      "nodes": [
        {
          "id": "0c49141e-128c-424e-afdf-ea131b7a3dd8",
          "name": "GetTableSchema",
          "type": "n8n-nodes-base.postgresTool",
          "position": [
            -460,
            220
          ],
          "parameters": {
            "query": "SELECT column_name, data_type FROM information_schema.columns WHERE table_name = $1",
            "options": {
              "queryReplacement": "={{ $fromAI('tableName', 'The name of the table.') }}"
            },
            "operation": "executeQuery",
            "descriptionType": "manual",
            "toolDescription": "Read a table's schema."
          },
          "credentials": {
            "postgres": {
              "id": "credential-id",
              "name": "postgres Credential"
            }
          },
          "typeVersion": 2.6
        },
        {
          "id": "8ffeefb9-357c-41bc-8239-0c07c706be97",
          "name": "ListTables",
          "type": "n8n-nodes-base.postgresTool",
          "position": [
            -340,
            300
          ],
          "parameters": {
            "query": "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'",
            "options": {},
            "operation": "executeQuery",
            "descriptionType": "manual",
            "toolDescription": "List all available tables."
          },
          "credentials": {
            "postgres": {
              "id": "credential-id",
              "name": "postgres Credential"
            }
          },
          "typeVersion": 2.6
        },
        {
          "id": "efcf7ff3-976e-448a-9d47-47a98f3b0fcb",
          "name": "When Executed by Another Workflow",
          "type": "n8n-nodes-base.executeWorkflowTrigger",
          "position": [
            280,
            200
          ],
          "parameters": {
            "workflowInputs": {
              "values": [
                {
                  "name": "operation"
                },
                {
                  "name": "tableName"
                },
                {
                  "name": "values",
                  "type": "object"
                },
                {
                  "name": "where",
                  "type": "object"
                }
              ]
            }
          },
          "typeVersion": 1.1
        },
        {
          "id": "abd292d7-fc2b-4e98-a474-b50e44d16b6c",
          "name": "CreateTableRecords",
          "type": "@n8n/n8n-nodes-langchain.toolWorkflow",
          "position": [
            -240,
            400
          ],
          "parameters": {
            "name": "CreateTableRows",
            "workflowId": {
              "__rl": true,
              "mode": "id",
              "value": "={{ $workflow.id }}"
            },
            "description": "Call this tool to create a row in the database.",
            "workflowInputs": {
              "value": {
                "where": "={{ {} }}",
                "values": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('values', `An object of key-value pair where key represents the column name.`, 'string') }}",
                "operation": "insert",
                "tableName": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('tableName', `Name of table to update`, 'string') }}"
              },
              "schema": [
                {
                  "id": "operation",
                  "type": "string",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "operation",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "tableName",
                  "type": "string",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "tableName",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "values",
                  "type": "object",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "values",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "where",
                  "type": "object",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "where",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                }
              ],
              "mappingMode": "defineBelow",
              "matchingColumns": [],
              "attemptToConvertTypes": false,
              "convertFieldsToString": false
            }
          },
          "typeVersion": 2.1
        },
        {
          "id": "4a71d42a-99a5-489e-b449-09c3c5081505",
          "name": "ReadTableRecord",
          "type": "n8n-nodes-base.postgres",
          "position": [
            760,
            0
          ],
          "parameters": {
            "query": "SELECT * FROM {{ $json.tableName }}\n{{ $json.where && Object.keys($json.where).length > 0\n  ? `WHERE ` + Object.keys($json.where).map((key,idx) => `${key} = $${idx+1}`).join(' AND ')\n  : ''\n}}",
            "options": {
              "queryReplacement": "={{ Object.values($json.where).join(',') }}"
            },
            "operation": "executeQuery"
          },
          "credentials": {
            "postgres": {
              "id": "credential-id",
              "name": "postgres Credential"
            }
          },
          "typeVersion": 2.6,
          "alwaysOutputData": true
        },
        {
          "id": "bdc60aa8-9ab1-4bbd-8b9e-89c968d54043",
          "name": "Operation",
          "type": "n8n-nodes-base.switch",
          "position": [
            460,
            200
          ],
          "parameters": {
            "rules": {
              "values": [
                {
                  "outputKey": "READ",
                  "conditions": {
                    "options": {
                      "version": 2,
                      "leftValue": "",
                      "caseSensitive": true,
                      "typeValidation": "strict"
                    },
                    "combinator": "and",
                    "conditions": [
                      {
                        "id": "81b134bc-d671-4493-b3ad-8df9be3f49a6",
                        "operator": {
                          "type": "string",
                          "operation": "equals"
                        },
                        "leftValue": "={{ $json.operation }}",
                        "rightValue": "read"
                      }
                    ]
                  },
                  "renameOutput": true
                },
                {
                  "outputKey": "INSERT",
                  "conditions": {
                    "options": {
                      "version": 2,
                      "leftValue": "",
                      "caseSensitive": true,
                      "typeValidation": "strict"
                    },
                    "combinator": "and",
                    "conditions": [
                      {
                        "id": "8d57914f-6587-4fb3-88e0-aa1de6ba56c1",
                        "operator": {
                          "name": "filter.operator.equals",
                          "type": "string",
                          "operation": "equals"
                        },
                        "leftValue": "={{ $json.operation }}",
                        "rightValue": "insert"
                      }
                    ]
                  },
                  "renameOutput": true
                },
                {
                  "outputKey": "UPDATE",
                  "conditions": {
                    "options": {
                      "version": 2,
                      "leftValue": "",
                      "caseSensitive": true,
                      "typeValidation": "strict"
                    },
                    "combinator": "and",
                    "conditions": [
                      {
                        "id": "7c38f238-213a-46ec-aefe-22e0bcb8dffc",
                        "operator": {
                          "name": "filter.operator.equals",
                          "type": "string",
                          "operation": "equals"
                        },
                        "leftValue": "={{ $json.operation }}",
                        "rightValue": "update"
                      }
                    ]
                  },
                  "renameOutput": true
                }
              ]
            },
            "options": {}
          },
          "typeVersion": 3.2
        },
        {
          "id": "cdb5b556-3638-4fa5-94c6-bff0c03f6c89",
          "name": "UpdateTableRecord",
          "type": "n8n-nodes-base.postgres",
          "position": [
            760,
            400
          ],
          "parameters": {
            "query": "UPDATE {{ $json.tableName }}\nSET\n  {{ Object.keys($json.values)\n  .map((key,idx) => `${key} = $${idx+1}`)\n  .join(',')\n}}\nWHERE\n  {{ Object.keys($json.where)\n  .map((key,idx) => `${key} = $${idx+Object.keys($json.values).length+1}`)\n  .join(' AND ')\n}}",
            "options": {
              "queryReplacement": "={{ Object.values($json.values).join(',') }},{{ Object.values($json.where).join(',') }}"
            },
            "operation": "executeQuery"
          },
          "credentials": {
            "postgres": {
              "id": "credential-id",
              "name": "postgres Credential"
            }
          },
          "typeVersion": 2.6
        },
        {
          "id": "9263fc78-321e-4c83-90d3-890dd87d6aed",
          "name": "UpdateTableRecords",
          "type": "@n8n/n8n-nodes-langchain.toolWorkflow",
          "position": [
            -100,
            320
          ],
          "parameters": {
            "name": "UpdateTableRows",
            "workflowId": {
              "__rl": true,
              "mode": "id",
              "value": "={{ $workflow.id }}"
            },
            "description": "Call this tool to create a row in the database.",
            "workflowInputs": {
              "value": {
                "where": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('where', `An object of key-value pair where key represents the column name.`, 'string') }}",
                "values": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('values', `An object of key-value pair where key represents the column name.`, 'string') }}",
                "operation": "=update",
                "tableName": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('tableName', `Table to update`, 'string') }}"
              },
              "schema": [
                {
                  "id": "operation",
                  "type": "string",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "operation",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "tableName",
                  "type": "string",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "tableName",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "values",
                  "type": "object",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "values",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "where",
                  "type": "object",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "where",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                }
              ],
              "mappingMode": "defineBelow",
              "matchingColumns": [],
              "attemptToConvertTypes": false,
              "convertFieldsToString": false
            }
          },
          "typeVersion": 2.1
        },
        {
          "id": "dd7e28fb-b2c7-4084-bc9b-9aa3e0187682",
          "name": "CreateTableRecord",
          "type": "n8n-nodes-base.postgres",
          "position": [
            760,
            200
          ],
          "parameters": {
            "query": "INSERT INTO {{ $json.tableName }}\n  ({{ Object.keys($json.values).join(',') }})\nVALUES\n  ({{ Object.keys($json.values).map((_,idx) => `$${idx+1}`).join(',') }})",
            "options": {
              "queryReplacement": "={{ Object.values($json.values).join(',') }}"
            },
            "operation": "executeQuery"
          },
          "credentials": {
            "postgres": {
              "id": "credential-id",
              "name": "postgres Credential"
            }
          },
          "typeVersion": 2.6
        },
        {
          "id": "324503c0-117b-45ec-97dd-7074eb1db22e",
          "name": "ReadTableRows",
          "type": "@n8n/n8n-nodes-langchain.toolWorkflow",
          "position": [
            20,
            240
          ],
          "parameters": {
            "name": "ReadTableRows",
            "workflowId": {
              "__rl": true,
              "mode": "id",
              "value": "={{ $workflow.id }}"
            },
            "description": "Call this tool to read a row in the database.",
            "workflowInputs": {
              "value": {
                "where": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('where', `An object of key-value pair where key represents the column name.`, 'string') }}",
                "values": "{}",
                "operation": "read",
                "tableName": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('tableName', ``, 'string') }}"
              },
              "schema": [
                {
                  "id": "operation",
                  "type": "string",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "operation",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "tableName",
                  "type": "string",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "tableName",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "values",
                  "type": "object",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "values",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                },
                {
                  "id": "where",
                  "type": "object",
                  "display": true,
                  "removed": false,
                  "required": false,
                  "displayName": "where",
                  "defaultMatch": false,
                  "canBeUsedToMatch": true
                }
              ],
              "mappingMode": "defineBelow",
              "matchingColumns": [],
              "attemptToConvertTypes": false,
              "convertFieldsToString": false
            }
          },
          "typeVersion": 2.1
        },
        {
          "id": "9cf39ca3-b704-49ce-b6e2-db2703c4acad",
          "name": "Sticky Note",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            -520,
            -120
          ],
          "parameters": {
            "color": 7,
            "width": 680,
            "height": 660,
            "content": "## 1. Set up an MCP Server Trigger\n[Read more about the MCP Server Trigger](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-langchain.mcptrigger)"
          },
          "typeVersion": 1
        },
        {
          "id": "ac3d9b98-8f1e-4abd-972c-1725aac1ad1e",
          "name": "PostgreSQL MCP Server",
          "type": "@n8n/n8n-nodes-langchain.mcpTrigger",
          "position": [
            -340,
            20
          ],
          "webhookId": "a5fd7047-e31b-4c0d-bd68-c36072c3da0d",
          "parameters": {
            "path": "a5fd7047-e31b-4c0d-bd68-c36072c3da0d"
          },
          "typeVersion": 1
        },
        {
          "id": "416a09d5-c327-410d-b951-a2d08402c6fe",
          "name": "Sticky Note1",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            180,
            -120
          ],
          "parameters": {
            "color": 7,
            "width": 820,
            "height": 720,
            "content": "## 2. Keep Secure by Preventing Raw SQL Statements\n[Read more about the PostgreSQL Node](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.postgres/)\n\nWhilst it may be easier to just let the Agent provide the full raw SQL statement,\nit may expose you or your organisation to a real security risk where in the worst\ncase, data may be unknowingly leaked or deleted.\n\nForcing the agent to provide only the parameters of the query\nmeans we can guard somewhat against this risk and also allows\nuse of query parameters as best practice against SQL injection attacks.\n"
          },
          "typeVersion": 1
        },
        {
          "id": "0187fb3f-4c31-461d-84e9-4a4a0bf4188d",
          "name": "Sticky Note2",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            -1000,
            -560
          ],
          "parameters": {
            "width": 440,
            "height": 1320,
            "content": "## Try It Out!\n### This n8n demonstrates how to build a simple PostgreSQL MCP server to manage your PostgreSQL database such as HR, Payroll, Sale, Inventory and More!\n\nThis MCP example is based off an official MCP reference implementation which can be found here -https://github.com/modelcontextprotocol/servers/tree/main/src/postgres\n\n### How it works\n* A MCP server trigger is used and connected to 5 tools: 2 postgreSQL and 3 custom workflow.\n* The 2 postgreSQL tools are simple read-only queries and as such, the postgreSQL tool can be simply used.\n* The 3 custom workflow tools are used for select, insert and update queries as these are operations which require a bit more discretion.\n* Whilst it may be easier to allow the agent to use raw SQL queries, we may find it a little safer to just allow for the parameters instead. The custom workflow tool allows us to define this restricted schema for tool input which we'll use to construct the SQL statement ourselves.\n* All 3 custom workflow tools trigger the same \"Execute workflow\" trigger in this very template which has a switch to route the operation to the correct handler.\n* Finally, we use our standard PostgreSQL node to handle select, insert and update operations. The responses are then sent back to the the MCP client.\n\n### How to use\n* This PostgreSQL MCP server allows any compatible MCP client to manage a PostgreSQL database by supporting select, create and update operations. You will need to have a database available before you can use this server.\n* Connect your MCP client by following the n8n guidelines here - https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-langchain.mcptrigger/#integrating-with-claude-desktop\n* Try the following queries in your MCP client:\n  * \"Please help me check if Alex has an entry in the users table. If not, please help me create a record for her.\"\n  * \"What was the top selling product in the last week?\"\n  * \"How many high priority support tickets are still open this morning?\"\n\n### Requirements\n* PostgreSQL for database. This can be an external database such as Supabase or one you can host internally.\n* MCP Client or Agent for usage such as Claude Desktop - https://claude.ai/download\n\n### Customising this workflow\n* If the scope of schemas or tables is too open, try restrict it so the MCP serves a specific purpose for business operations. eg. Confine the querying and editing to HR only tables before providing access to people in that department.\n* Remember to set the MCP server to require credentials before going to production and sharing this MCP server with others!"
          },
          "typeVersion": 1
        },
        {
          "id": "bc4e427f-f6fd-4243-844a-8edf2dc1a0e9",
          "name": "Sticky Note3",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            -520,
            -240
          ],
          "parameters": {
            "color": 5,
            "width": 380,
            "height": 100,
            "content": "### Always Authenticate Your Server!\nBefore going to production, it's always advised to enable authentication on your MCP server trigger."
          },
          "typeVersion": 1
        }
      ],
      "pinData": {},
      "connections": {
        "Operation": {
          "main": [
            [
              {
                "node": "ReadTableRecord",
                "type": "main",
                "index": 0
              }
            ],
            [
              {
                "node": "CreateTableRecord",
                "type": "main",
                "index": 0
              }
            ],
            [
              {
                "node": "UpdateTableRecord",
                "type": "main",
                "index": 0
              }
            ]
          ]
        },
        "ListTables": {
          "ai_tool": [
            [
              {
                "node": "PostgreSQL MCP Server",
                "type": "ai_tool",
                "index": 0
              }
            ]
          ]
        },
        "ReadTableRows": {
          "ai_tool": [
            [
              {
                "node": "PostgreSQL MCP Server",
                "type": "ai_tool",
                "index": 0
              }
            ]
          ]
        },
        "GetTableSchema": {
          "ai_tool": [
            [
              {
                "node": "PostgreSQL MCP Server",
                "type": "ai_tool",
                "index": 0
              }
            ]
          ]
        },
        "ReadTableRecord": {
          "main": [
            []
          ]
        },
        "CreateTableRecords": {
          "ai_tool": [
            [
              {
                "node": "PostgreSQL MCP Server",
                "type": "ai_tool",
                "index": 0
              }
            ]
          ]
        },
        "UpdateTableRecords": {
          "ai_tool": [
            [
              {
                "node": "PostgreSQL MCP Server",
                "type": "ai_tool",
                "index": 0
              }
            ]
          ]
        },
        "When Executed by Another Workflow": {
          "main": [
            [
              {
                "node": "Operation",
                "type": "main",
                "index": 0
              }
            ]
          ]
        }
      }
    },
    "lastUpdatedBy": 29,
    "workflowInfo": {
      "nodeCount": 15,
      "nodeTypes": {
        "n8n-nodes-base.switch": {
          "count": 1
        },
        "n8n-nodes-base.postgres": {
          "count": 3
        },
        "n8n-nodes-base.stickyNote": {
          "count": 4
        },
        "n8n-nodes-base.postgresTool": {
          "count": 2
        },
        "@n8n/n8n-nodes-langchain.mcpTrigger": {
          "count": 1
        },
        "@n8n/n8n-nodes-langchain.toolWorkflow": {
          "count": 3
        },
        "n8n-nodes-base.executeWorkflowTrigger": {
          "count": 1
        }
      }
    },
    "status": "published",
    "user": {
      "name": "Jimleuk",
      "username": "jimleuk",
      "bio": "Founder @ Subworkflow.ai - the fastest way to build durable RAG applications.\n\nFreelance AI Automation Engineer based in London, UK. Since 2024, my n8n templates have documented my journey into applied AI and have helped hundreds of businesses and organisations get up to speed with AI automation. Today, I continue to explore use-cases as AI evolves and occasionally upload templates which I find novel and interesting.\n\nSubscribe to the RSS Feed: https://cdn.subworkflow.ai/n8n-templates/rss.xml",
      "verified": true,
      "links": [
        "https://linkedin.com/in/jimleuk"
      ],
      "avatar": "https://gravatar.com/avatar/4ab99e51473df76838beeaac908747f7928c625f869794815cabe34016967d51?r=pg&d=retro&size=200"
    },
    "nodes": [
      {
        "id": 30,
        "icon": "file:postgres.svg",
        "name": "n8n-nodes-base.postgres",
        "codex": {
          "data": {
            "resources": {
              "generic": [
                {
                  "url": "https://n8n.io/blog/love-at-first-sight-ricardos-n8n-journey/",
                  "icon": "❤️",
                  "label": "Love at first sight: Ricardo’s n8n journey"
                },
                {
                  "url": "https://n8n.io/blog/why-i-chose-n8n-over-zapier-in-2020/",
                  "icon": "😍",
                  "label": "Why I chose n8n over Zapier in 2020"
                },
                {
                  "url": "https://n8n.io/blog/database-monitoring-and-alerting-with-n8n/",
                  "icon": "📡",
                  "label": "Database Monitoring and Alerting with n8n"
                },
                {
                  "url": "https://n8n.io/blog/running-n8n-on-ships-an-interview-with-maranics/",
                  "icon": "🛳",
                  "label": "Running n8n on ships: An interview with Maranics"
                },
                {
                  "url": "https://n8n.io/blog/automate-your-data-processing-pipeline-in-9-steps-with-n8n/",
                  "icon": "⚙️",
                  "label": "Automate your data processing pipeline in 9 steps"
                },
                {
                  "url": "https://n8n.io/blog/how-honest-burgers-use-automation-to-save-100k-per-year/",
                  "icon": "🍔",
                  "label": "How Honest Burgers Use Automation to Save $100k per year"
                }
              ],
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.postgres/"
                }
              ],
              "credentialDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/credentials/postgres/"
                }
              ]
            },
            "categories": [
              "Development",
              "Data & Storage"
            ],
            "nodeVersion": "1.0",
            "codexVersion": "1.0"
          }
        },
        "group": "[\"input\"]",
        "defaults": {
          "name": "Postgres"
        },
        "iconData": {
          "type": "file",
          "fileBuffer": "data:image/svg+xml;base64,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="#fff" fill-rule="evenodd" stroke="#000" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 79 81"><use xlink:href="#a" x=".5" y=".5"/><symbol id="a" overflow="visible"><g fill-rule="nonzero" stroke="none"><path fill="#000" d="M77.391 47.922c-.466-1.412-1.688-2.396-3.268-2.632-.745-.111-1.598-.064-2.608.144-1.76.363-3.065.501-4.018.528 3.596-6.072 6.521-12.997 8.204-19.515 2.722-10.54 1.268-15.341-.432-17.513C70.77 3.185 64.206.097 56.287.002c-4.224-.052-7.933.782-9.867 1.382a37 37 0 0 0-5.77-.528c-3.809-.061-7.174.77-10.05 2.476a46 46 0 0 0-7.098-1.782C16.561.411 10.968 1.299 6.876 4.19 1.922 7.689-.375 13.77.05 22.262c.135 2.696 1.643 10.9 4.018 18.68 1.365 4.472 2.82 8.185 4.326 11.038 2.135 4.046 4.419 6.428 6.984 7.284 1.438.479 4.049.814 6.797-1.473a6 6 0 0 0 1.429 1.23c.783.494 1.74.897 2.696 1.136 3.446.862 6.674.646 9.427-.561l.041 1.362.06 1.899c.163 4.064.44 7.223 1.259 9.434.045.122.105.307.169.503.409 1.251 1.092 3.346 2.83 4.987 1.8 1.699 3.978 2.22 5.972 2.22 1 0 1.955-.131 2.792-.311 2.984-.639 6.373-1.614 8.824-5.104 2.318-3.3 3.444-8.27 3.648-16.101l.074-.634.048-.414.546.048.141.01c3.039.138 6.755-.506 9.037-1.566 1.803-.837 7.582-3.888 6.221-8.007"/><path fill="#336791" d="M72.195 48.723c-9.036 1.864-9.657-1.195-9.657-1.195 9.541-14.157 13.529-32.127 10.087-36.525C63.235-.994 46.981 4.68 46.71 4.827l-.087.016c-1.785-.371-3.783-.591-6.029-.628-4.089-.067-7.19 1.072-9.544 2.857 0 0-28.995-11.945-27.647 15.023.287 5.737 8.223 43.41 17.689 32.031 3.46-4.161 6.803-7.679 6.803-7.679 1.66 1.103 3.648 1.666 5.732 1.463l.162-.137a6.3 6.3 0 0 0 .065 1.62c-2.439 2.725-1.722 3.203-6.597 4.206-4.933 1.017-2.035 2.826-.143 3.299 2.294.574 7.6 1.386 11.185-3.633l-.143.573c.956.765 1.626 4.978 1.514 8.797s-.188 6.441.565 8.489 1.503 6.656 7.912 5.282c5.355-1.148 8.13-4.121 8.516-9.081.274-3.526.894-3.005.933-6.158l.497-1.493c.573-4.78.091-6.322 3.39-5.605l.802.07c2.428.11 5.606-.391 7.471-1.257 4.016-1.864 6.398-4.976 2.438-4.158"/><path d="M32.747 24.66c-.814-.113-1.552-.008-1.925.274a.7.7 0 0 0-.292.47c-.047.336.188.707.333.898.409.542 1.006.915 1.598.997a2 2 0 0 0 .256.018c.986 0 1.883-.768 1.962-1.335.099-.71-.932-1.183-1.931-1.322m26.975.022c-.078-.556-1.068-.715-2.007-.584s-1.848.554-1.772 1.112c.061.434.844 1.174 1.771 1.174q.117 0 .237-.016c.619-.086 1.073-.479 1.288-.705.329-.345.518-.73.484-.98m15.477 23.828c-.345-1.042-1.453-1.377-3.296-.997-5.471 1.129-7.43.347-8.073-.127 4.252-6.478 7.75-14.308 9.637-21.614.894-3.461 1.388-6.675 1.428-9.294.045-2.876-.445-4.988-1.455-6.279-4.072-5.203-10.048-7.994-17.283-8.07-4.973-.056-9.175 1.217-9.99 1.575a25 25 0 0 0-5.622-.722c-3.734-.06-6.961.834-9.633 2.655a43 43 0 0 0-7.828-2.052c-6.342-1.021-11.381-.248-14.978 2.3-4.291 3.04-6.272 8.475-5.888 16.152.129 2.583 1.601 10.529 3.923 18.139 3.057 10.016 6.38 15.686 9.877 16.852a4.4 4.4 0 0 0 1.402.232c1.276 0 2.839-.575 4.466-2.531a161 161 0 0 1 6.156-6.966 9.9 9.9 0 0 0 4.429 1.191l.01.121c-.31.368-.564.69-.781.965-1.07 1.358-1.293 1.641-4.738 2.351-.98.202-3.582.738-3.62 2.563-.041 1.993 3.076 2.83 3.431 2.919 1.238.31 2.43.463 3.568.463 2.766 0 5.2-.909 7.145-2.668-.06 7.106.236 14.107 1.089 16.241.699 1.746 2.406 6.014 7.798 6.014.791 0 1.662-.092 2.62-.297 5.627-1.207 8.071-3.694 9.016-9.177.506-2.93 1.374-9.928 1.782-13.682.862.269 1.971.392 3.17.392 2.501 0 5.387-.531 7.197-1.372 2.033-.944 5.702-3.261 5.037-5.274zM61.8 23.147c-.019 1.108-.171 2.114-.333 3.164-.174 1.129-.354 2.297-.399 3.715-.045 1.379.128 2.814.294 4.2.337 2.801.682 5.685-.655 8.531a11 11 0 0 1-.592-1.218c-.166-.403-.527-1.05-1.027-1.946-1.944-3.487-6.497-11.652-4.167-14.984.694-.992 2.456-2.011 6.879-1.463zM56.439 4.374c6.482.143 11.609 2.568 15.24 7.207 2.784 3.558-.282 19.749-9.158 33.716l-.269-.339-.112-.14c2.294-3.788 1.845-7.536 1.446-10.859-.164-1.364-.319-2.652-.28-3.861.041-1.283.21-2.382.374-3.446.202-1.311.407-2.667.35-4.265a1.8 1.8 0 0 0 .037-.601c-.144-1.533-1.894-6.12-5.462-10.273-1.951-2.271-4.797-4.813-8.682-6.527a29.3 29.3 0 0 1 6.515-.612zM20.167 53.298c-1.793 2.155-3.031 1.742-3.438 1.607-2.653-.885-5.73-6.491-8.444-15.382-2.348-7.693-3.72-15.428-3.829-17.597-.343-6.86 1.32-11.641 4.943-14.21 5.896-4.181 15.589-1.679 19.484-.409l-.17.163c-6.391 6.455-6.24 17.483-6.224 18.157a22 22 0 0 0 .051 1.135c.11 1.855.315 5.307-.232 9.217-.508 3.633.612 7.189 3.072 9.756q.383.398.795.75a164 164 0 0 0-6.008 6.814zm6.83-9.113c-1.983-2.069-2.884-4.947-2.471-7.896.577-4.13.364-7.727.25-9.659l-.039-.694c.934-.828 5.261-3.146 8.346-2.439 1.408.323 2.266 1.281 2.623 2.931 1.846 8.539.244 12.098-1.043 14.957-.265.589-.516 1.146-.73 1.722l-.166.445c-.42 1.126-.811 2.173-1.053 3.167-2.108-.006-4.159-.907-5.718-2.534zm.324 11.516a5 5 0 0 1-1.494-.642c.271-.128.754-.301 1.591-.474 4.052-.834 4.678-1.423 6.045-3.158.313-.398.669-.849 1.16-1.398.733-.821 1.068-.682 1.676-.43.493.204.972.821 1.167 1.501.092.321.195.93-.143 1.404-2.855 3.997-7.015 3.946-10.003 3.198zm21.207 19.735c-4.957 1.062-6.713-1.467-7.869-4.359-.747-1.867-1.113-10.285-.853-19.582a1.1 1.1 0 0 0-.048-.356 5 5 0 0 0-.139-.657c-.387-1.353-1.331-2.484-2.462-2.953-.45-.186-1.275-.528-2.267-.274.212-.871.578-1.855.976-2.921l.167-.448c.188-.505.423-1.029.673-1.583 1.347-2.992 3.192-7.091 1.19-16.35-.75-3.468-3.254-5.161-7.05-4.768-2.276.235-4.358 1.154-5.396 1.68q-.334.169-.618.329c.29-3.494 1.385-10.024 5.481-14.156 2.579-2.601 6.014-3.886 10.199-3.817 8.246.135 13.534 4.367 16.518 7.893 2.571 3.039 3.964 6.1 4.52 7.751-4.179-.425-7.022.4-8.463 2.46-3.135 4.481 1.715 13.178 4.046 17.358.427.766.796 1.428.912 1.709.759 1.839 1.742 3.067 2.459 3.964.22.275.433.541.596.774-1.266.365-3.539 1.208-3.332 5.422-.167 2.115-1.356 12.016-1.959 15.514-.797 4.621-2.497 6.343-7.279 7.368zm20.693-23.68c-1.294.601-3.46 1.052-5.518 1.148-2.273.107-3.43-.255-3.702-.477-.128-2.626.85-2.901 1.884-3.191.163-.046.321-.09.474-.144a4 4 0 0 0 .313.23c1.827 1.206 5.085 1.336 9.685.386l.05-.01c-.62.58-1.682 1.359-3.187 2.058z"/></g></symbol></svg>"
        },
        "displayName": "Postgres",
        "typeVersion": 3,
        "nodeCategories": [
          {
            "id": 3,
            "name": "Data & Storage"
          },
          {
            "id": 5,
            "name": "Development"
          }
        ]
      },
      {
        "id": 112,
        "icon": "fa:map-signs",
        "name": "n8n-nodes-base.switch",
        "codex": {
          "data": {
            "alias": [
              "Router",
              "If",
              "Path",
              "Filter",
              "Condition",
              "Logic",
              "Branch",
              "Case"
            ],
            "resources": {
              "generic": [
                {
                  "url": "https://n8n.io/blog/2021-the-year-to-automate-the-new-you-with-n8n/",
                  "icon": "☀️",
                  "label": "2021: The Year to Automate the New You with n8n"
                },
                {
                  "url": "https://n8n.io/blog/how-to-get-started-with-crm-automation-and-no-code-workflow-ideas/",
                  "icon": "👥",
                  "label": "How to get started with CRM automation (with 3 no-code workflow ideas"
                },
                {
                  "url": "https://n8n.io/blog/build-your-own-virtual-assistant-with-n8n-a-step-by-step-guide/",
                  "icon": "👦",
                  "label": "Build your own virtual assistant with n8n: A step by step guide"
                },
                {
                  "url": "https://n8n.io/blog/automation-for-maintainers-of-open-source-projects/",
                  "icon": "🏷️",
                  "label": "How to automatically manage contributions to open-source projects"
                }
              ],
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.switch/"
                }
              ]
            },
            "categories": [
              "Core Nodes"
            ],
            "nodeVersion": "1.0",
            "codexVersion": "1.0",
            "subcategories": {
              "Core Nodes": [
                "Flow"
              ]
            }
          }
        },
        "group": "[\"transform\"]",
        "defaults": {
          "name": "Switch",
          "color": "#506000"
        },
        "iconData": {
          "icon": "map-signs",
          "type": "icon"
        },
        "displayName": "Switch",
        "typeVersion": 3,
        "nodeCategories": [
          {
            "id": 9,
            "name": "Core Nodes"
          }
        ]
      },
      {
        "id": 565,
        "icon": "fa:sticky-note",
        "name": "n8n-nodes-base.stickyNote",
        "codex": {
          "data": {
            "alias": [
              "Comments",
              "Notes",
              "Sticky"
            ],
            "categories": [
              "Core Nodes"
            ],
            "nodeVersion": "1.0",
            "codexVersion": "1.0",
            "subcategories": {
              "Core Nodes": [
                "Helpers"
              ]
            }
          }
        },
        "group": "[\"input\"]",
        "defaults": {
          "name": "Sticky Note",
          "color": "#FFD233"
        },
        "iconData": {
          "icon": "sticky-note",
          "type": "icon"
        },
        "displayName": "Sticky Note",
        "typeVersion": 1,
        "nodeCategories": [
          {
            "id": 9,
            "name": "Core Nodes"
          }
        ]
      },
      {
        "id": 837,
        "icon": "fa:sign-out-alt",
        "name": "n8n-nodes-base.executeWorkflowTrigger",
        "codex": {
          "data": {
            "resources": {
              "generic": [],
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.executeworkflowtrigger/"
                }
              ]
            },
            "categories": [
              "Core Nodes"
            ],
            "nodeVersion": "1.0",
            "codexVersion": "1.0",
            "subcategories": {
              "Core Nodes": [
                "Helpers"
              ]
            }
          }
        },
        "group": "[\"trigger\"]",
        "defaults": {
          "name": "When Executed by Another Workflow",
          "color": "#ff6d5a"
        },
        "iconData": {
          "icon": "sign-out-alt",
          "type": "icon"
        },
        "displayName": "Execute Workflow Trigger",
        "typeVersion": 1,
        "nodeCategories": [
          {
            "id": 9,
            "name": "Core Nodes"
          }
        ]
      },
      {
        "id": 1205,
        "icon": "fa:network-wired",
        "name": "@n8n/n8n-nodes-langchain.toolWorkflow",
        "codex": {
          "data": {
            "resources": {
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.toolworkflow/"
                }
              ]
            },
            "categories": [
              "AI",
              "Langchain"
            ],
            "subcategories": {
              "AI": [
                "Tools"
              ],
              "Tools": [
                "Recommended Tools"
              ]
            }
          }
        },
        "group": "[\"transform\"]",
        "defaults": {
          "name": "Call n8n Workflow Tool"
        },
        "iconData": {
          "icon": "network-wired",
          "type": "icon"
        },
        "displayName": "Call n8n Workflow Tool",
        "typeVersion": 2,
        "nodeCategories": [
          {
            "id": 25,
            "name": "AI"
          },
          {
            "id": 26,
            "name": "Langchain"
          }
        ]
      },
      {
        "id": 1293,
        "icon": "file:../mcp.svg",
        "name": "@n8n/n8n-nodes-langchain.mcpTrigger",
        "codex": {
          "data": {
            "alias": [
              "Model Context Protocol",
              "MCP Server"
            ],
            "resources": {
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-langchain.mcptrigger/"
                }
              ]
            },
            "categories": [
              "AI",
              "Core Nodes",
              "Langchain"
            ],
            "subcategories": {
              "AI": [
                "Root Nodes",
                "Model Context Protocol"
              ],
              "Core Nodes": [
                "Other Trigger Nodes"
              ]
            }
          }
        },
        "group": "[\"trigger\"]",
        "defaults": {
          "name": "MCP Server Trigger"
        },
        "iconData": {
          "type": "file",
          "fileBuffer": "data:image/svg+xml;base64,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"
        },
        "displayName": "MCP Server Trigger",
        "typeVersion": 2,
        "nodeCategories": [
          {
            "id": 9,
            "name": "Core Nodes"
          },
          {
            "id": 25,
            "name": "AI"
          },
          {
            "id": 26,
            "name": "Langchain"
          }
        ]
      }
    ],
    "categories": [
      {
        "id": 5,
        "name": "Engineering"
      },
      {
        "id": 48,
        "name": "AI RAG"
      }
    ],
    "image": []
  }
}