This workflow follows the Chainllm → Execute Workflow Trigger 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 →
{
"id": "siXUnQhJpCJ9rHzu",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Auto-Tag Blog Posts in WordPress with AI",
"tags": [
{
"id": "ijuVOmJpw5mCrzQX",
"name": "marketing",
"createdAt": "2025-01-28T16:42:03.029Z",
"updatedAt": "2025-01-28T16:42:03.029Z"
}
],
"nodes": [
{
"id": "0561d80b-f360-4a8e-930d-49b778833991",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
3260,
480
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "d71aec64-299c-4258-8eb4-95821d15b758",
"name": "Auto-fixing Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserAutofixing",
"position": [
3460,
540
],
"parameters": {},
"typeVersion": 1
},
{
"id": "1468a001-ca7b-4726-ae31-02b28d78b07e",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
3360,
680
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "bb4221ad-94d7-4543-850f-87b83735d2a6",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
3560,
760
],
"parameters": {
"jsonSchemaExample": "{\n\t\"tags\": [\"Germany\", \"Technology\", \"Workflow Automation\"]\n}"
},
"typeVersion": 1.2
},
{
"id": "2380c4ea-d804-45b2-8341-417afa2ae21f",
"name": "RSS Feed Trigger",
"type": "n8n-nodes-base.rssFeedReadTrigger",
"position": [
3140,
320
],
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"typeVersion": 1
},
{
"id": "782e9c61-7d51-499b-89b2-888415c5116e",
"name": "Return article details",
"type": "n8n-nodes-base.set",
"position": [
4140,
320
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "ebe28fc7-f166-4428-b3f3-b319f2d080df",
"name": "tag_ids",
"type": "array",
"value": "={{ $json.tag_ids }}"
},
{
"id": "bc296683-2a93-42b4-a9a7-90a2bc22f37b",
"name": "title",
"type": "string",
"value": "={{ $('MOCK article').item.json.title }}"
},
{
"id": "32dc0950-3708-447e-a3b6-a5c5ae9bdcd0",
"name": "content",
"type": "string",
"value": "={{ $('MOCK article').item.json.content }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "6b5ce61f-8351-40ab-9e63-51c3e85ce53d",
"name": "Split Out",
"type": "n8n-nodes-base.splitOut",
"position": [
2200,
840
],
"parameters": {
"options": {
"destinationFieldName": "missing_tag"
},
"fieldToSplitOut": "missing_tags"
},
"typeVersion": 1
},
{
"id": "2338e3e8-cba4-48c8-8c1a-50019af70932",
"name": "Loop over articles",
"type": "n8n-nodes-base.splitInBatches",
"position": [
1980,
320
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "39b89004-6032-4d22-8bcc-3dfd1d793ed0",
"name": "SET initial record",
"type": "n8n-nodes-base.set",
"position": [
2200,
440
],
"parameters": {
"options": {},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "ec0b93cb-de9d-41be-9d4b-6846d3ee14a2",
"name": "GET WP tags",
"type": "n8n-nodes-base.httpRequest",
"position": [
2440,
440
],
"parameters": {
"url": "https://www.example.com/wp-json/wp/v2/tags",
"options": {},
"authentication": "predefinedCredentialType",
"nodeCredentialType": "wordpressApi"
},
"credentials": {
"wordpressApi": {
"name": "<your credential>"
}
},
"executeOnce": true,
"typeVersion": 4.2,
"alwaysOutputData": true
},
{
"id": "cbabadef-9f5f-4402-8bd7-255f5c237ff9",
"name": "POST WP tags",
"type": "n8n-nodes-base.httpRequest",
"position": [
2420,
840
],
"parameters": {
"url": "https://www.example.com/wp-json/wp/v2/tags",
"method": "POST",
"options": {},
"sendQuery": true,
"authentication": "predefinedCredentialType",
"queryParameters": {
"parameters": [
{
"name": "slug",
"value": "={{ $json.missing_tag }}"
},
{
"name": "name",
"value": "={{ $json.missing_tag.replaceAll(\"-\",\" \").toTitleCase() }}"
}
]
},
"nodeCredentialType": "wordpressApi"
},
"credentials": {
"wordpressApi": {
"name": "<your credential>"
}
},
"executeOnce": false,
"typeVersion": 4.2
},
{
"id": "6bf40d39-4b42-413f-9502-3ca494f75bcb",
"name": "GET updated WP tags",
"type": "n8n-nodes-base.httpRequest",
"position": [
2700,
840
],
"parameters": {
"url": "https://www.example.com/wp-json/wp/v2/tags",
"options": {},
"authentication": "predefinedCredentialType",
"nodeCredentialType": "wordpressApi"
},
"credentials": {
"wordpressApi": {
"name": "<your credential>"
}
},
"executeOnce": true,
"typeVersion": 4.2
},
{
"id": "aea9a631-0cd8-4ed8-9fb1-981b8e11f3dd",
"name": "Keep matches",
"type": "n8n-nodes-base.filter",
"position": [
2200,
1040
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "8ec4fdfc-73f3-4d7b-96e4-f42a18252599",
"operator": {
"type": "array",
"operation": "contains",
"rightType": "any"
},
"leftValue": "={{ $('SET initial record').first().json.tags.map(item => item.toLowerCase().replaceAll(\" \",\"-\")) }}",
"rightValue": "={{ $json.slug }}"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "6d71d7a5-495d-4809-b66f-9f1cba0d11c6",
"name": "Combine tag_ids",
"type": "n8n-nodes-base.aggregate",
"position": [
2420,
1040
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{
"renameField": true,
"outputFieldName": "tag_ids",
"fieldToAggregate": "id"
}
]
}
},
"typeVersion": 1
},
{
"id": "dc3cac68-dee8-4821-963b-b0594d1a7e0e",
"name": "Combine slugs",
"type": "n8n-nodes-base.aggregate",
"position": [
2700,
440
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{
"renameField": true,
"outputFieldName": "tags",
"fieldToAggregate": "slug"
}
]
}
},
"typeVersion": 1
},
{
"id": "8e0f668c-e3ac-4d70-9ffb-5515e6221c62",
"name": "If",
"type": "n8n-nodes-base.if",
"position": [
2440,
640
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "8d77d072-cb47-4fbb-831a-0e6f3ecefc71",
"operator": {
"type": "array",
"operation": "empty",
"singleValue": true
},
"leftValue": "={{ $json.missing_tags }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "7988188d-07e6-4a36-94f2-e21d7677802e",
"name": "MOCK article",
"type": "n8n-nodes-base.set",
"position": [
3740,
320
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "4a69cf1b-341a-40bc-a36a-b76c05bdd819",
"name": "title",
"type": "string",
"value": "={{ $('RSS Feed Trigger').item.json.title }}"
},
{
"id": "63097eb0-6165-4365-a5b5-e9f3de65d715",
"name": "content",
"type": "string",
"value": "={{ $('RSS Feed Trigger').item.json.content }}"
},
{
"id": "ae4859ec-ad14-403e-b5b6-53703fefe3f3",
"name": "categories",
"type": "array",
"value": "={{ $('RSS Feed Trigger').item.json.categories }}"
},
{
"id": "3f94d5ac-5196-4ad0-acea-79c07b0ee2c6",
"name": "tags",
"type": "array",
"value": "={{ $json.output.tags }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "4578cb14-dc86-4bc4-8d59-f0c088574164",
"name": "Return missing tags",
"type": "n8n-nodes-base.code",
"position": [
2200,
640
],
"parameters": {
"jsCode": "const new_ary = $('SET initial record').first().json.tags.map(x => x.toLowerCase().replaceAll(\" \",\"-\")).filter(x => !$input.first().json.tags.includes(x))\n\nreturn {\"missing_tags\": new_ary};"
},
"typeVersion": 2
},
{
"id": "91c8dde5-58ce-4bf6-ac3c-0062cbf0046e",
"name": "Wordpress",
"type": "n8n-nodes-base.wordpress",
"position": [
4360,
320
],
"parameters": {
"title": "=Demo tagging post: {{ $json.title }}",
"additionalFields": {
"tags": "={{ $json.tag_ids }}",
"content": "=This is a post to demo automatic tagging a WordPress postvia n8n. The following content could be rewritten in full or part with commentary using AI.\n\n{{ $json.content }}"
}
},
"credentials": {
"wordpressApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "8257534e-f433-4225-a795-230fd367cc01",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
3000,
200
],
"parameters": {
"color": 7,
"width": 1673.0029952487134,
"height": 1061.6563737812796,
"content": "## Demo Usage in Another Workflow (Tagging an article discovered with an RSS feed)"
},
"typeVersion": 1
},
{
"id": "b14e6fda-c569-4ada-90d9-77b61049c531",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1680,
198.96245932022566
],
"parameters": {
"color": 7,
"width": 1243.102096674096,
"height": 1077.24135750937,
"content": "## Auto-Tag Posts in WordPress\n\nThis workflow allows you to hand off the responsibility of tagging content for WordPress to an AI Agent in n8n with no data entry required."
},
"typeVersion": 1
},
{
"id": "21420d0f-a5c9-4eac-b6d9-06d3a6de5fb9",
"name": "Demo Usage in Another Workflow",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
1780,
320
],
"parameters": {},
"typeVersion": 1
},
{
"id": "7571b196-3827-478f-b032-84d99adf4aa8",
"name": "Auto-Tag Posts in WordPress",
"type": "n8n-nodes-base.executeWorkflow",
"position": [
3940,
320
],
"parameters": {
"mode": "each",
"options": {},
"workflowId": {
"__rl": true,
"mode": "id",
"value": "siXUnQhJpCJ9rHzu"
}
},
"typeVersion": 1.1
},
{
"id": "e5b63f63-09a6-452d-9d26-8501fc49d7fe",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
2640,
140
],
"parameters": {
"color": 5,
"width": 256.62869115182394,
"height": 146.4958582739091,
"content": "## Copy this workflow\n\nYou can use it inline by removing the Called by Another Workflow trigger, or as-is as a subworkflow"
},
"typeVersion": 1
},
{
"id": "2ea9fbdd-b492-4030-b640-227a163d70ef",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
3040,
980
],
"parameters": {
"width": 409.8780943583022,
"height": 248.2919292392927,
"content": "Handing off tagging and categorization fully to AI lets you **put your WordPress account on autopilot** without a human-in-the-loop.\n\nIn this example the application is use-case agnostic, but with this workflow you can:\n1. Use AI to rewrite content with original thoughts and tags\n2. Ensure healthy information architecture on your site\n3. Quickly generate multivariate tag and category combinations for optimal SEO"
},
"typeVersion": 1
},
{
"id": "57cfa462-fc71-4173-b7c9-8253c4e240d1",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
3900,
500
],
"parameters": {
"color": 3,
"width": 369.61896876326364,
"height": 103.91486928512641,
"content": "### To ensure data can be passed to subsequent nodes, make sure to select \"Run Once for Each Item\" if executing a subworkflow"
},
"typeVersion": 1
},
{
"id": "7f1dfade-07be-49b7-b5ee-99b58f1e6cc7",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
2640,
660
],
"parameters": {
"color": 6,
"width": 211.8330719827787,
"content": "## What's this? \nIf there are missing tags we create them in WP, otherwise we keep get them all from WP and keep the relevant ones."
},
"typeVersion": 1
},
{
"id": "61711c71-3e45-4b06-80a8-b651177b585d",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1960,
540
],
"parameters": {
"color": 3,
"width": 174.33565557367925,
"height": 251.80401948434695,
"content": "## What's this? \nOne of the few potential failure points in this workflow, when checking for missing tags it's important that both the generated tags and the existing tags are in the same case (snake, dash, title)."
},
"typeVersion": 1
},
{
"id": "31db85c9-e4c2-4409-9d92-7eb005223de0",
"name": "Generate tags for article",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
3360,
320
],
"parameters": {
"text": "=Please provide 3-5 suitable tags for the following article:\n\n{{ $json.content }}\n\nTag Formatting Rules:\n1. Tags should be in title case",
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.4
},
{
"id": "7d6eac92-6f6f-44a4-8dce-0830440a9dff",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
1600,
1040
],
"parameters": {
"width": 285.2555025627061,
"content": "## ! A note about cases !\nIf you want your tags to follow a different case than I am using (dash case for slug, title case for name), then you will need to update a few nodes in this workflow."
},
"typeVersion": 1
},
{
"id": "133be2f7-071b-4651-b3b5-8052a64b7f49",
"name": "Sticky Note8",
"type": "n8n-nodes-base.stickyNote",
"position": [
2600,
1200
],
"parameters": {
"color": 5,
"width": 296.01271681531176,
"content": "## Ready for a challenge?\n\nMake this subworkflow executable for both categories and tags, accounting for different API calls to different endpoints."
},
"typeVersion": 1
},
{
"id": "7807e967-ac3d-4a4d-bd9d-f123d57e1676",
"name": "Sticky Note9",
"type": "n8n-nodes-base.stickyNote",
"position": [
4400,
1155.7364351382535
],
"parameters": {
"color": 4,
"width": 244.3952545193282,
"height": 87.34661077350344,
"content": "## About the maker\n**[Find Ludwig Gerdes on LinkedIn](https://www.linkedin.com/in/ludwiggerdes)**"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "3acdf19c-288e-4a3b-87ae-5adbf44285fe",
"connections": {
"If": {
"main": [
[
{
"node": "GET updated WP tags",
"type": "main",
"index": 0
}
],
[
{
"node": "Split Out",
"type": "main",
"index": 0
}
]
]
},
"Split Out": {
"main": [
[
{
"node": "POST WP tags",
"type": "main",
"index": 0
}
]
]
},
"GET WP tags": {
"main": [
[
{
"node": "Combine slugs",
"type": "main",
"index": 0
}
]
]
},
"Keep matches": {
"main": [
[
{
"node": "Combine tag_ids",
"type": "main",
"index": 0
}
]
]
},
"MOCK article": {
"main": [
[
{
"node": "Auto-Tag Posts in WordPress",
"type": "main",
"index": 0
}
]
]
},
"POST WP tags": {
"main": [
[
{
"node": "GET updated WP tags",
"type": "main",
"index": 0
}
]
]
},
"Combine slugs": {
"main": [
[
{
"node": "Return missing tags",
"type": "main",
"index": 0
}
]
]
},
"Combine tag_ids": {
"main": [
[
{
"node": "Loop over articles",
"type": "main",
"index": 0
}
]
]
},
"RSS Feed Trigger": {
"main": [
[
{
"node": "Generate tags for article",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Generate tags for article",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Loop over articles": {
"main": [
[],
[
{
"node": "SET initial record",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Auto-fixing Output Parser",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"SET initial record": {
"main": [
[
{
"node": "GET WP tags",
"type": "main",
"index": 0
}
]
]
},
"GET updated WP tags": {
"main": [
[
{
"node": "Keep matches",
"type": "main",
"index": 0
}
]
]
},
"Return missing tags": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"Return article details": {
"main": [
[
{
"node": "Wordpress",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Auto-fixing Output Parser",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Auto-fixing Output Parser": {
"ai_outputParser": [
[
{
"node": "Generate tags for article",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Generate tags for article": {
"main": [
[
{
"node": "MOCK article",
"type": "main",
"index": 0
}
]
]
},
"Auto-Tag Posts in WordPress": {
"main": [
[
{
"node": "Return article details",
"type": "main",
"index": 0
}
]
]
},
"Demo Usage in Another Workflow": {
"main": [
[
{
"node": "Loop over articles",
"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.
openAiApiwordpressApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
How this works
Effortlessly enhance your WordPress blog's organisation by automatically generating and applying AI-powered tags to new posts, saving hours of manual categorisation and improving searchability for readers. This workflow suits content creators and marketers managing high-volume blogs who want smarter metadata without technical hassle. It triggers on fresh RSS feed updates from your WordPress site, then leverages OpenAI's chat model alongside structured output parsers to analyse article content and suggest relevant tags before posting them back via HTTP requests.
Use this workflow when publishing frequent blog posts that benefit from dynamic tagging, such as news sites or niche publications, to boost SEO and user navigation. Avoid it for static sites with infrequent updates or if you prefer fully manual control over tags to ensure brand consistency. Common variations include adapting the AI prompt for custom tag styles or integrating with email notifications for tag review before application.
About this workflow
Auto-Tag Blog Posts in WordPress with AI. Uses lmChatOpenAi, outputParserAutofixing, outputParserStructured, rssFeedReadTrigger. Event-driven trigger; 32 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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