n8n SEO Blog Drafts: OpenAI + Canva + WordPress Automation

Turn an SEO keyword into a WordPress draft—automatically

This n8n workflow takes your target SEO keyword from an n8n form, uses OpenAI to generate a publish-ready blog article, creates matching featured + OG images with Canvra, and then publishes the result as a draft post in WordPress—with the image embedded on top.

What this workflow does

• Collects inputs: Receives a target keyword (and optional brand ID) from an n8n form submission.
• Generates the article with OpenAI: Uses OpenAI to write an SEO-optimized post and returns strict JSON containing the title, HTML body, and a one-sentence visual summary.
• Builds images with Canvra: Parses the AI response into structured fields, then sends the summary/title to the Canvra API to generate:
  • a blog featured image
  • an Open Graph (OG) image
• Waits for completion: Polls Canvra for generation status until it completes or times out.
• Creates a WordPress draft: If image generation succeeds, embeds the featured image above the article HTML and creates a draft post in WordPress using the generated title and content.
• Stops on failure: If image generation fails, the workflow stops instead of creating an incomplete draft.

Use cases

• SaaS content teams: Quickly draft SEO blog posts from keyword research without manual writing or formatting.
• Automation engineers: Stand up an end-to-end n8n pipeline for OpenAI → Canvra → WordPress drafts.
• Operator workflows: Test keyword-to-draft publishing from an n8n form as part of a repeatable content engine.

Technical details

• n8n nodes: if, code, no op, wait, wordpress, sticky note
• Integrations: OpenAI for SEO article JSON (title + HTML body + one-sentence visual summary), Canvra API for featured + OG images, and WordPress for draft creation.
• Setup highlights: Add OpenAI credentials and keep the prompt aligned to required JSON output; create a Canvra API key and set HTTP header auth (e.g., X-API-Key: <your key>); connect WordPress credentials and ensure draft post permissions.