Fetch the Public Ip Addresses of Your N8n Instance

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": "OU7CNqiRY4Kbvq1a",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "fetch-public-IP-address-for-n8n-instance",
  "tags": [],
  "nodes": [
    {
      "id": "1f1aa04c-fde0-4166-a714-451964e45fe5",
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "notes": "request public IP address information as json",
      "position": [
        300,
        -160
      ],
      "parameters": {
        "url": "https://api.ipify.org",
        "options": {},
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "format",
              "value": "json"
            }
          ]
        }
      },
      "executeOnce": false,
      "notesInFlow": true,
      "typeVersion": 4.2,
      "alwaysOutputData": true
    },
    {
      "id": "ddb35464-535f-4ce4-a14d-682673690ca0",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "notes": "simple webhook with header-auth",
      "position": [
        -140,
        -160
      ],
      "parameters": {
        "path": "4879bc79-d6f8-48df-bfe4-613366c7f399",
        "options": {},
        "responseMode": "responseNode",
        "authentication": "headerAuth"
      },
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "notesInFlow": true,
      "typeVersion": 2
    },
    {
      "id": "a6ac927d-404d-44a7-8268-4609094c1346",
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "notes": "return an array from the workflow and end the webhook invocation.",
      "position": [
        740,
        -160
      ],
      "parameters": {
        "options": {},
        "respondWith": "text",
        "responseBody": "={{ $json.data.pluck('ip').unique().toJsonString() }}"
      },
      "executeOnce": true,
      "notesInFlow": true,
      "typeVersion": 1.2,
      "alwaysOutputData": true
    },
    {
      "id": "20a55cc9-fba5-4392-a807-2783db6261bb",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -200,
        -300
      ],
      "parameters": {
        "width": 1160,
        "height": 380,
        "content": "## to fetch the public IP address(es) for the hosting n8n instance\n\n* prerequisite: a header-auth credential with a uuid or an arbitrary random string.\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n* example invocation\n$ curl -H \"api-key: super-long-api-token\" http://localhost:5678/webhook-test/4879bc79-d6f8-48df-bfe4-613366c7f399\n[\"88.88.88.66\", \"88.88.88.88\"]"
      },
      "typeVersion": 1
    },
    {
      "id": "908003cf-f012-4bd6-8128-b3238de2507d",
      "name": "Aggregate",
      "type": "n8n-nodes-base.aggregate",
      "position": [
        520,
        -160
      ],
      "parameters": {
        "options": {},
        "aggregate": "aggregateAllItemData"
      },
      "typeVersion": 1
    },
    {
      "id": "115d0f12-7ee0-4d0d-8086-f462e8bee197",
      "name": "Repeat",
      "type": "n8n-nodes-base.set",
      "notes": "Repeat 10 times",
      "position": [
        80,
        -160
      ],
      "parameters": {
        "options": {},
        "duplicateItem": true,
        "duplicateCount": 10
      },
      "executeOnce": true,
      "notesInFlow": true,
      "typeVersion": 3.4,
      "alwaysOutputData": true
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "ea9c9b26-5362-4ee9-84b0-fae0bf02305c",
  "connections": {
    "Repeat": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Webhook": {
      "main": [
        [
          {
            "node": "Repeat",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Aggregate": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "HTTP Request": {
      "main": [
        [
          {
            "node": "Aggregate",
            "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.

• httpHeaderAuth

About this workflow

If you need to use n8n to connect to service providers of yours, some of which happen to rely on firewall white-listing as part of their access control, you'll need to determine or verify the public IP addresses of your n8n instance(s).

Source: https://n8n.io/workflows/4750/ — original creator credit. Request a take-down →

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