openrouter-banana-mcp

MCP server that generates images from text prompts using OpenRouter with the google/gemini-3-pro-image-preview model.

Install

pip install openrouter-banana-mcp

Setup

uv sync

Create a .env file or export environment variables:

OPENROUTER_API_KEY=your_key_here

Run

uv run banana-mcp

Or:

python -m banana_mcp

Configure MCP clients

Add a stdio server entry in your MCP client config (for example, Claude Desktop, Cursor, or Continue). Use one of these command styles:

{
  "mcpServers": {
    "openrouter-banana": {
      "command": "banana-mcp",
      "args": [],
      "env": {
        "OPENROUTER_API_KEY": "your_key_here"
      }
    }
  }
}

If you prefer running via Python or uv:

{
  "mcpServers": {
    "openrouter-banana": {
      "command": "python",
      "args": ["-m", "banana_mcp"],
      "env": {
        "OPENROUTER_API_KEY": "your_key_here"
      }
    }
  }
}

One-command install

Codex CLI:

codex mcp add openrouter-banana --env OPENROUTER_API_KEY=your_key_here -- banana-mcp

Claude Code:

claude mcp add --transport stdio openrouter-banana --env OPENROUTER_API_KEY=your_key_here -- banana-mcp

MCP Tool

Tool: generate_image

Input:

• prompt (string)

Output:

• model (string)
• images (list of base64 data URLs)
• text (optional assistant text)