Automate Wordpress Category Mapping with Gpt-5 Mini (azure Openai)

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 →

{
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "0e83e20c-e43d-4625-9bdc-5d82b3b9e341",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        112,
        368
      ],
      "parameters": {
        "color": 3,
        "width": 370,
        "height": 100,
        "content": "## \u2615 Appreciate This Workflow?\n\nSupport the creator by sending coffee:\n\n**PayPal:** [paypal.me/khmuhtadin](https://paypal.me/khmuhtadin)\n\nThank you! \ud83d\ude80"
      },
      "typeVersion": 1
    },
    {
      "id": "cc2cef53-7df3-4917-a882-860d553f5104",
      "name": "Start",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        112,
        208
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "06540637-8291-455c-86f2-e27f9ffab397",
      "name": "Sticky Note5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -240,
        128
      ],
      "parameters": {
        "color": 4,
        "width": 320,
        "height": 352,
        "content": "## Process:\n- change with your url\n- Input your WP credentials\n- Copy ``category json`` from **Body Post Wordpress**\n- Paste in system prompt on **Category Mapping**\n- Copy the result back to **Body Post Wordpress**"
      },
      "typeVersion": 1
    },
    {
      "id": "4a718b76-e00b-4929-ad13-f64db481e9a1",
      "name": "Get All Categories",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        304,
        208
      ],
      "parameters": {
        "url": "https://cartilo.my.id/wp-json/wp/v2/categories?per_page=100",
        "options": {},
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "wordpressApi"
      },
      "credentials": {
        "wordpressApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "c7495577-3d61-4706-a770-a169bf28b801",
      "name": "Aggregate to Process",
      "type": "n8n-nodes-base.aggregate",
      "position": [
        496,
        208
      ],
      "parameters": {
        "options": {},
        "aggregate": "aggregateAllItemData"
      },
      "typeVersion": 1
    },
    {
      "id": "ca148b94-896b-4843-9710-28455e5d286c",
      "name": "Category-Mapping",
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "position": [
        672,
        208
      ],
      "parameters": {
        "text": "={{JSON.stringify($json)}}",
        "batching": {},
        "messages": {
          "messageValues": [
            {
              "message": "You are an expert programmer. \n\nchange this mapping:\n {{ $('Topic Chooser and Title Maker').item.json.output.category == \"Technology\" ? [3] :\n    $('Topic Chooser and Title Maker').item.json.output.category == \"Artificial Intelligence (AI)\" ? [4] :\n    $('Topic Chooser and Title Maker').item.json.output.category == \"Tech Fact\" ? [7] :\n    $('Topic Chooser and Title Maker').item.json.output.category == \"Tech History\" ? [8] :\n    $('Topic Chooser and Title Maker').item.json.output.category == \"Tech Tips\" ? [9] : [1] }}\n\nbased on user input.\nonly change category and the id. never add \"\\n\" in the output"
            }
          ]
        },
        "promptType": "define"
      },
      "typeVersion": 1.7
    },
    {
      "id": "e252bdd8-767f-4269-9499-7dcd71477d74",
      "name": "Gpt-5-mini",
      "type": "@n8n/n8n-nodes-langchain.lmChatAzureOpenAi",
      "position": [
        672,
        368
      ],
      "parameters": {
        "model": "gpt5mini",
        "options": {}
      },
      "credentials": {
        "azureOpenAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "221fd7d7-bc4b-4f28-8970-383917810d75",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -272,
        48
      ],
      "parameters": {
        "color": 5,
        "width": 1328,
        "height": 480,
        "content": "## WP Category toolkit"
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "Start": {
      "main": [
        [
          {
            "node": "Get All Categories",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Gpt-5-mini": {
      "ai_languageModel": [
        [
          {
            "node": "Category-Mapping",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Get All Categories": {
      "main": [
        [
          {
            "node": "Aggregate to Process",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Aggregate to Process": {
      "main": [
        [
          {
            "node": "Category-Mapping",
            "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.

• azureOpenAiApi
• wordpressApi

About this workflow

WP Category Toolkit automates mapping content topics to your WordPress category IDs using your WordPress REST API and a GPT-5mini model.

Source: https://n8n.io/workflows/7207/ — original creator credit. Request a take-down →

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