Skip to content
mcp/harbor
Gemini CLI

Image Gen for Gemini CLI

com.nuverlabs/image-gen

Generate and edit images from your coding agent with Gemini and OpenAI, using your own API keys.

client:Gemini CLI transport:stdio runtime:npm

Install Image Gen in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "image-gen": {
      "command": "npx",
      "args": [
        "-y",
        "@nuver-labs/image-gen-mcp"
      ],
      "env": {
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>",
        "IMAGE_GEN_MCP_DEFAULT_PROVIDER": "<IMAGE_GEN_MCP_DEFAULT_PROVIDER>",
        "IMAGE_GEN_MCP_GEMINI_MODEL": "<IMAGE_GEN_MCP_GEMINI_MODEL>",
        "IMAGE_GEN_MCP_OPENAI_MODEL": "<IMAGE_GEN_MCP_OPENAI_MODEL>",
        "IMAGE_GEN_MCP_OUTPUT_DIR": "<IMAGE_GEN_MCP_OUTPUT_DIR>",
        "IMAGE_GEN_MCP_ALLOWED_DIRS": "<IMAGE_GEN_MCP_ALLOWED_DIRS>",
        "IMAGE_GEN_MCP_TIMEOUT_MS": "<IMAGE_GEN_MCP_TIMEOUT_MS>",
        "IMAGE_GEN_MCP_LOG_FILE": "<IMAGE_GEN_MCP_LOG_FILE>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Image Gen in other clients

Image Gen MCP server