Auto-tag blog posts in WordPress with AI
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 22 nodes and runs when another workflow calls it (plus 1 other trigger). Along the way it connects OpenAI Chat Model and Wordpress.
How it runs
Trigger: When another workflow calls it (plus 1 other trigger).
- Loop over articles (Loop Over Items (Split in Batches)): loops over the items in batches
- Generate tags for article (Basic LLM Chain): sends a prompt to an LLM, with model: OpenAI Chat Model; output parser: Auto-fixing Output Parser
- SET initial record (Edit Fields (Set)): sets or maps fields
- MOCK article (Edit Fields (Set)): sets 4 fields: title, content, categories…
- GET WP tags (HTTP Request): calls an HTTP API
- Auto-Tag Posts in WordPress (Execute Sub-workflow): calls another n8n workflow
- Combine slugs (Aggregate): combines items into one
- Return article details (Edit Fields (Set)): sets 3 fields: tag_ids, title, content
- Return missing tags (Code): runs custom JavaScript code
- Wordpress: uses Wordpress
…plus 6 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (16)
- OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Auto-fixing Output Parser
@n8n/n8n-nodes-langchain.outputParserAutofixing - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - RSS Feed Trigger
n8n-nodes-base.rssFeedReadTrigger - Edit Fields (Set)
n8n-nodes-base.set - Split Out
n8n-nodes-base.splitOut - Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - HTTP Request
n8n-nodes-base.httpRequest - Filter
n8n-nodes-base.filter - Aggregate
n8n-nodes-base.aggregate - If
n8n-nodes-base.if - Code
n8n-nodes-base.code - Wordpress
n8n-nodes-base.wordpress - Execute Workflow Trigger
n8n-nodes-base.executeWorkflowTrigger - Execute Sub-workflow
n8n-nodes-base.executeWorkflow - Basic LLM Chain
@n8n/n8n-nodes-langchain.chainLlm
From the author
How it works: This workflow automates tagging for WordPress posts using AI: 1. Fetch blog post content and metadata. 2. Generate contextually relevant tags using AI. 3. Verify existing tags in WordPress and create new ones if necessary. 4. Automatically…