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Gemini Nanobanana MCP Server

@Junhan2

代码仓库

基本信息

分类

AI 与智能体

许可证

MIT

传输方式

stdio

作者

Junhan2

提交者

gangjoon

关于 Gemini Nanobanana MCP Server

MCP server for Google Gemini 2.5 Flash Image preview (text-to-image, editing, composition)

#gemini#nanobanana#claude#chatgpt

Gemini Nanobanana MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "gemini-nanobanana-mcp": {
      "command": "npx",
      "args": [
        "gemini-nanobanana-mcp@latest"
      ],
      "env": {
        "GEMINI_API_KEY": "your-api-key",
        "AUTO_SAVE": "true",
        "DEFAULT_SAVE_DIR": "~/Pictures/AI-Images",
        "LOG_LEVEL": "debug"
      }
    }
  }
}

Gemini Nanobanana MCP Server 工具

4

Generate an image from a text prompt using Gemini 2.5 Flash Image

Edit an image using a prompt. Provide one input image via base64 or file path.

Compose a new image using multiple input images and a guiding prompt.

Transfer style from a style image to a base image, guided by an optional prompt.

概览

What is Gemini Nanobanana Mcp?

Gemini Nanobanana Mcp is a beginner-friendly Model Context Protocol (MCP) server that brings Google’s Gemini 2.5 Flash image generation directly into Claude conversations. It enables text-to-image generation, image editing, multi-image composition, and style transfer—all through natural language prompts.

How to use Gemini Nanobanana Mcp?

Configure the server in Claude Desktop, Claude Code, or Cursor by adding a JSON entry with the npx command and your GEMINI_API_KEY environment variable. After restarting your client, simply ask Claude to generate, edit, or compose images. Images are auto-saved to ~/Downloads/gemini-images/ by default, and you can specify a custom path in your prompt.

Key features of Gemini Nanobanana Mcp

  • Text-to-image generation from any description
  • Edit uploaded images with natural language instructions
  • Combine multiple images into a collage or composition
  • Apply artistic style from one image to another
  • Auto‑save images to disk or disable with AUTO_SAVE=false
  • Optional HTTP mode for external integrations

Use cases of Gemini Nanobanana Mcp

  • Generate custom illustrations, logos, or concept art during a chat
  • Edit photos by describing the desired change (e.g., “make this black and white”)
  • Create collages by uploading multiple reference images
  • Apply a style reference image to a content image for artistic transfer
  • Automatically save every generated image to a local folder for later use

常见问题

1

What API key is required and where do I get it?

You need a Google AI Studio API key. Get one free at [Google AI Studio](https://aistudio.google.com/apikey) by signing in with your Google account.

2

How do I install Gemini Nanobanana Mcp in Claude Desktop on Mac?

Open Terminal and run the one‑line command provided in the README that writes the configuration JSON to `~/Library/Application Support/Claude/claude_desktop_config.json`, replacing `YOUR_API_KEY` with your actual key.

3

Why am I getting “GEMINI_API_KEY not set” error?

The API key is missing or incorrectly set. Double‑check your config file or environment variable, ensure there are no extra spaces, and restart your Claude client.

4

Can I change where images are saved or disable automatic saving?

Yes. Set `DEFAULT_SAVE_DIR` to a custom path, or set `AUTO_SAVE` to `false` to only save images when you explicitly request a path.

5

What image formats are supported and how do I get instant preview?

Supported formats: PNG, JPEG, WebP, and GIF. For instant preview in Claude Code, install the provided hooks from the repository—generated images will open automatically in Quick Look.

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