AI Blog Publisher System · SaaS · Since 2026
Daily Content Across 7 Sites. One System. No Staff.
Built a fully automated content publishing system running 7 simultaneous blogs across 4 client sites. Claude Sonnet writes each post, a Netlify or Vercel deploy goes live, and a launchd cron handles the schedule every morning at 6am. Zero editorial staff, zero human touchpoints.
What we built
The challenge
Content marketing requires consistent publishing to compound in search rankings. Most businesses publish 1-2 posts a month and wonder why they don't rank. Hiring writers for daily content across multiple sites is cost-prohibitive for small businesses.
What we did
- Built a Node.js publisher with 7 adapters targeting Netlify and Vercel deploy pipelines for different blog configurations.
- Used Claude Sonnet 4.6 with tool_use API for guaranteed structured JSON output, enforcing tone, word count, and formatting rules per site.
- Built state management per site tracking published slugs, last post date, and error logs.
- Configured launchd 6am cron on Mac to trigger the full publishing run daily without cloud compute cost.
The outcome
Seven blogs across four client domains now publish fresh, SEO-optimized content every morning at 6am with zero human involvement. Monthly content volume that would cost $3,000-$5,000 in writer fees runs for the cost of Claude API tokens.
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