n8n Website Automation: Auto-Publish Pages to HTMLPub

This n8n website automation workflow accepts a topic via webhook, generates a complete HTML page with OpenAI, and publishes it to HTMLPub. The live URL comes back in the response.

Four nodes. No code required.

The Workflow

Node 1: Webhook Trigger

Node type: Webhook
HTTP Method: POST
Path: /publish-page

Expected request body:

{
  "topic": "Your page topic or description",
  "style": "Optional style notes (e.g. minimal, dark, bold)"
}

Node 2: Generate HTML with OpenAI

Node type: OpenAI
Operation: Message a Model
Model: gpt-4o

System prompt:

You are a web developer. Generate a complete, single-file HTML page with inline CSS and JavaScript. The page should be clean, mobile-responsive, and ready to publish immediately. Return only the HTML code. No explanation, no markdown fencing — just the raw HTML.

User message:

Build a page about: {{ $json.body.topic }}
Style notes: {{ $json.body.style }}

Node 3: Publish to HTMLPub

Node type: HTTP Request
Method: POST
URL: https://api.htmlpub.com/v1/pages

Headers:

Authorization: Bearer YOUR_HTMLPUB_API_KEY
Content-Type: application/json

Body (JSON):

{
  "title": "{{ $('Webhook').item.json.body.topic }}",
  "html": "{{ $('Generate HTML').item.json.choices[0].message.content }}",
  "status": "published"
}

Replace YOUR_HTMLPUB_API_KEY with your key from the HTMLPub dashboard under Settings > API.

Node 4: Respond to Webhook

Node type: Respond to Webhook
Response body:

{
  "url": "{{ $json.url }}",
  "id": "{{ $json.id }}"
}

What Happens When You Run It

Send a POST to your webhook URL:

{
  "topic": "Free trial landing page for a time-tracking app targeting freelancers",
  "style": "Clean, minimal, conversion-focused with a single CTA"
}

Within 15-20 seconds, you get back:

{
  "url": "https://pages.pubhtml.com/your-page-slug",
  "id": "abc123"
}

The page is live.

One Variation: Batch Page Generator

Replace the Webhook Trigger with a Google Sheets node set to read rows. Pull a column of topics and run the workflow for each row in sequence. Useful for generating multiple landing page variants, a batch of location-specific pages, or a set of SEO pages from a keyword list.

Connect a Wait node between pages if you're generating large batches, to avoid hitting OpenAI rate limits.

For the full HTMLPub API reference, see Automate Web Publishing with AI + the HTMLPub API. If you want a simpler setup without n8n, the Claude MCP connector does the same thing inside a Claude conversation.