Every page needs an OG image. Every blog post needs a hero. Every product needs a photo. Building these manually does not scale, and stock photography looks generic. The Image Gen extension wires Claude SEO into Google Gemini via the nanobanana MCP server. Generate OG previews, hero images, product photography, infographics, schema images, and favicons with a single command. Brand-consistent, SEO-sized, ready to drop in.
REQUIRES CLAUDE SEO INSTALLED IN CLAUDE CODE
Each format ships with a tuned prompt template and an enforced aspect ratio. You describe the visual; the extension applies the SEO sizing, brand palette, and Gemini routing.
The extension is optional. Claude SEO core ships without it. Install it when you need to generate images on demand, leave it out if you handle visuals separately.
| Command | What it does |
|---|---|
/seo image-gen og <description> | Generate a 1200x630 OG/social preview image |
/seo image-gen hero <description> | Generate a 16:9 blog hero image |
/seo image-gen product <description> | Generate square or 4:3 product photography |
/seo image-gen infographic <description> | Generate a vertical infographic from data points |
/seo image-gen custom <description> --aspect 16:9 | Custom aspect ratio with full Creative Director pipeline |
/seo image-gen batch <manifest.json> | Generate every image in a JSON manifest in one run |
The Image Gen extension is not bundled with Claude SEO core. Install it explicitly when you want image generation wired into the skill catalog.
./extensions/banana/install.sh
The installer wires the nanobanana MCP server, prompts for a Google AI Studio API key, and writes the extension into your Claude Code configuration. The extension also works with the standalone /banana skill from the banana-claude project if you want image generation outside the SEO pack.
Batch generation takes a JSON manifest. Each entry specifies a format and a description; sizes and prompts are applied automatically.
[
{"format": "og", "description": "dark theme tech minimal", "out": "blog/post-1-og.webp"},
{"format": "hero", "description": "developer at terminal", "out": "blog/post-1-hero.webp"},
{"format": "product", "description": "matte black headphones", "out": "products/sku-101.webp"}
]
/seo image-gen batch <manifest-file> with a JSON manifest listing images to generate, each with a description and format. Useful for: generating OG images across 100+ blog posts in one run; producing a full set of category hero images for an e-commerce category tree; building a library of schema images for a product catalog.extensions/banana/install.sh from the Claude SEO repo. The installer wires the nanobanana MCP server and sets up the Gemini API key. You will need a Google AI Studio API key (free at aistudio.google.com). The extension also works with the standalone /banana skill from the banana-claude project.