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miccho27
miccho27

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I Built an AI Product Description Generator That Saves E-Commerce Sellers 10+ Hours a Week

#webdev #ai #javascript #productivity

If you've ever listed products on Amazon, Shopify, or Rakuten, you know the pain: writing compelling product descriptions that convert is time-consuming, keyword-heavy work. Multiply that by 100 products and you're looking at days of your life gone.

I built ListingAI to solve this — an AI-powered product description generator built specifically for e-commerce sellers.

What ListingAI Does

ListingAI generates optimized product descriptions for multiple e-commerce platforms from a single product input. Key features:

  • Multi-platform output: Amazon, Shopify, Rakuten, Mercari, Yahoo Shopping
  • SEO keyword optimization: AI bakes in relevant search terms naturally
  • Legal compliance checking: Flags prohibited expressions (important for Japanese e-commerce regulations)
  • Bulk generation: Process multiple products via CSV upload
  • One-click copy: Formatted for each platform's requirements

The Problem It Solves

Writing product listings is deceptively hard:

  1. Each platform has different character limits and formatting rules
  2. SEO keywords need to be natural, not stuffed
  3. Certain claims are legally restricted depending on the market
  4. Doing it manually at scale is simply not viable for small sellers

Technical Stack

Built with:

  • Next.js (frontend + API routes)
  • Claude API (Anthropic's claude-haiku for cost-efficient generation)
  • Vercel (zero-config deployment)
  • Stripe (payment integration — pending KYC)

The architecture is intentionally simple. Each description generation is a single API call to Claude with a structured prompt that includes platform-specific formatting requirements and compliance rules.

// Core generation logic
const generateDescription = async (product, platform) => {
  const prompt = buildPlatformPrompt(product, platform);
  const response = await anthropic.messages.create({
    model: 'claude-haiku-4-5',
    max_tokens: 1024,
    messages: [{ role: 'user', content: prompt }]
  });
  return response.content[0].text;
};
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The pSEO Play

Beyond the tool itself, I built 154 SEO pages targeting long-tail keywords like "Amazon product description generator for [category]". This programmatic SEO approach means organic traffic compounds over time without ad spend.

Each page is statically generated at build time — zero server costs, instant load times.

What's Working

  • 154 pSEO pages indexed in Google
  • GA4 tracking active (G-744NC14BGM)
  • Consistent daily organic traffic from product-specific keywords

What's Next

  • Stripe integration (currently pending KYC approval)
  • Bulk CSV upload for power sellers
  • API access for developers wanting to integrate listing generation into their workflow

Try It

Live demo: https://listing-ai-six.vercel.app/

If you're building e-commerce tools or just need to generate product descriptions at scale, give it a try. The core generation is free — no account required.

Building in public. Happy to answer questions about the architecture or the AI prompt engineering behind the compliance checking.

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