Weekly AI Digest Automation: SerpAPI + Gemini + WordPress

Get an AI-written weekly digest draft—automatically—using SerpAPI, Google Gemini, and WordPress.

This n8n workflow runs every Friday at 07:00 and turns fresh Google Search results from the past week into a source-grounded weekly digest in Markdown, converts it to HTML, and creates a draft post in your WordPress site.

What this workflow does

• Schedules the run: a Schedule Trigger starts the automation every Friday at 07:00.
• Builds search parameters: from a single Config step, it creates two distinct search queries plus a freshness window covering the past week.
• Fetches results with SerpAPI: it calls SerpAPI’s Google Search endpoint twice (once per query) to pull recent findings.
• Merges and de-duplicates: results are combined, deduplicated by URL, and formatted into a numbered “findings” block for citation.
• Writes a grounded digest with Google Gemini: Gemini is instructed to produce a weekly digest in Markdown that only cites the provided URLs.
• Enforces output quality: it applies title and excerpt character limits, normalizes tags, and fails the run if the model returns an empty body.
• Creates a WordPress draft: the Markdown is converted to HTML, then the workflow creates a draft post in WordPress using the generated title and content.

Use cases

• SaaS operators publishing weekly product, industry, or regulatory updates sourced from Google results.
• Automation engineers generating consistent content drafts without manual research each week.
• Teams needing a repeatable “news digest” process with citation controls for credibility.

Technical details

• Integrations: SerpAPI (Google Search), Google Gemini (Google AI), WordPress (Basic Auth).
• n8n nodes / components: Schedule Trigger, HTTP Request, Code, Markdown conversion, and WordPress post creation.
• Setup: add SerpAPI credentials, add Google Gemini credentials for the chat model, and provide WordPress Basic Auth credentials with permission to create posts; then edit the queries/audience/output limits in the Config step.