Schema | mcp-alphabanana

mcp-alphabanana

Overview Schema Source Related Servers Discussions Admin

Server Configuration

Describes the environment variables required to run the server.

Name	Required	Description	Default
`GEMINI_API_KEY`	Yes	The Google Gemini API key required for image generation.
`MCP_FALLBACK_OUTPUT`	No	Optional: Set a custom fallback directory for write failures.

Instructions

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.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{}
`logging`	{}
`completions`	{}

Tools

Functions exposed to the LLM to take actions

Name	Description
generate_imageA	Generate image assets using Gemini AI with optional transparency and reference images. [Claude Desktop Guidance] Prefer outputType='file' for medium or large images. base64 and combine responses can exceed Claude Desktop's context limit. On Claude Desktop for Windows, use the FileSystem extension to choose reference-image paths and a writable absolute outputPath before calling this tool. Use base64 only for small previews or when the client explicitly needs inline image data. [Model Guidance] Flash3.1 (recommended): High quality, very fast, supports grounding and advanced features. Lite3.1 (Nano Banana 2 Lite): Ultra-fast, cost-effective, 1K-only, no search grounding. Ideal for quick drafting and low-latency iteration. Pro3: Higher fidelity, but more costly and slower. Flash2.5: Legacy, maintained for compatibility. Does not support 0.5K, 2K, or 4K resolutions. [Aspect Ratios] Gemini supports the following aspect ratios (model-dependent): Common to all models: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 Flash3.1 only: 1:4, 4:1, 1:8, 8:1 Normal mode: provide outputWidth/outputHeight and the server will choose the closest Gemini aspect ratio and source resolution, then resize to the requested pixel size. No-resize mode: set noresize=true and provide aspectRatio plus output_resolution. The server will return Gemini's native pixel dimensions for that combination without post-generation resizing. If you intentionally want to control resizing/cropping in normal mode, use the 'resizeMode' parameter: 'crop' (default, center crop), 'letterbox' (fit with padding), 'contain' (trim transparent margins then fit), or 'stretch' (distort to fit). [IMPORTANT] Always preserve the user's prompt as-is, including language and nuance. Do not translate or summarize.

Name

Description

generate_imageA

Generate image assets using Gemini AI with optional transparency and reference images.

[Claude Desktop Guidance]

Prefer outputType='file' for medium or large images. base64 and combine responses can exceed Claude Desktop's context limit.
On Claude Desktop for Windows, use the FileSystem extension to choose reference-image paths and a writable absolute outputPath before calling this tool.
Use base64 only for small previews or when the client explicitly needs inline image data.

[Model Guidance]

Flash3.1 (recommended): High quality, very fast, supports grounding and advanced features.
Lite3.1 (Nano Banana 2 Lite): Ultra-fast, cost-effective, 1K-only, no search grounding. Ideal for quick drafting and low-latency iteration.
Pro3: Higher fidelity, but more costly and slower.
Flash2.5: Legacy, maintained for compatibility. Does not support 0.5K, 2K, or 4K resolutions.

[Aspect Ratios] Gemini supports the following aspect ratios (model-dependent):

Common to all models: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
Flash3.1 only: 1:4, 4:1, 1:8, 8:1

Normal mode: provide outputWidth/outputHeight and the server will choose the closest Gemini aspect ratio and source resolution, then resize to the requested pixel size. No-resize mode: set noresize=true and provide aspectRatio plus output_resolution. The server will return Gemini's native pixel dimensions for that combination without post-generation resizing.

If you intentionally want to control resizing/cropping in normal mode, use the 'resizeMode' parameter: 'crop' (default, center crop), 'letterbox' (fit with padding), 'contain' (trim transparent margins then fit), or 'stretch' (distort to fit).

[IMPORTANT] Always preserve the user's prompt as-is, including language and nuance. Do not translate or summarize.

Prompts

Interactive templates invoked by user choice

Name	Description
No prompts

Resources

Contextual data attached and managed by the client

Name	Description
No resources

Deploy Server

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

TDQS

A4.6/5.0

Scored 2026-07-12 23:55 across 1 tool

Disambiguation5/5

With only one tool, there is no potential for confusion between tools. The single tool's purpose is clearly defined as generating images.

Naming Consistency5/5

There is only one tool, so naming consistency is not applicable. The tool name 'generate_image' follows a clear verb_noun convention.

Tool Count4/5

The server has a single tool, which is slightly thin but acceptable given the tool's complexity and the server's focused purpose of image generation. The tool includes many parameters and guidance, making it substantial.

Completeness5/5

The tool provides comprehensive image generation capabilities with support for multiple AI models, aspect ratios, output formats, and advanced options like no-resize and resize modes. It covers the full scope of image generation for the server's domain.

Maintenance

ActivityStale

ResponsivenessUnresponsive

Resources

Need Help?

Related Servers