Schema | nano-banana-mcp

nano-banana-mcp

Describes the environment variables required to run the server.

Name	Required	Description	Default
`OUTPUT_DIR`	No	Directory for saved images	~/nano-banana-output
`GEMINI_MODEL`	No	Gemini model for image generation/editing	gemini-3.1-flash-image-preview
`GEMINI_API_KEY`	Yes	Your Google AI API key
`GEMINI_BASE_URL`	No	Custom base URL for Gemini API (proxy support)
`GEMINI_DESCRIBE_MODEL`	No	Gemini model for image description (text-only output)	gemini-2.5-flash

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{ "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
generate_imageA	Generate an image from a text prompt using Google Gemini. Default model: gemini-3.1-flash-image-preview. Supports batch generation (n=1-4). Response contains a thumbnail preview; full-res image is saved to /root/nano-banana-output.
edit_imageA	Edit an existing image based on a text instruction using Google Gemini. Default model: gemini-3.1-flash-image-preview. Supports multi-image input (up to 10 total). Response contains a thumbnail preview; full-res image is saved to /root/nano-banana-output.
describe_imageA	Get a text description of an image using Google Gemini. Default model: gemini-2.5-flash.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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