Image Gen

com.nuverlabs/image-gen · v0.2.1

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

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add image-gen -e GEMINI_API_KEY=<GEMINI_API_KEY> -e OPENAI_API_KEY=<OPENAI_API_KEY> -e IMAGE_GEN_MCP_DEFAULT_PROVIDER=<IMAGE_GEN_MCP_DEFAULT_PROVIDER> -e IMAGE_GEN_MCP_GEMINI_MODEL=<IMAGE_GEN_MCP_GEMINI_MODEL> -e IMAGE_GEN_MCP_OPENAI_MODEL=<IMAGE_GEN_MCP_OPENAI_MODEL> -e IMAGE_GEN_MCP_OUTPUT_DIR=<IMAGE_GEN_MCP_OUTPUT_DIR> -e IMAGE_GEN_MCP_ALLOWED_DIRS=<IMAGE_GEN_MCP_ALLOWED_DIRS> -e IMAGE_GEN_MCP_TIMEOUT_MS=<IMAGE_GEN_MCP_TIMEOUT_MS> -e IMAGE_GEN_MCP_LOG_FILE=<IMAGE_GEN_MCP_LOG_FILE> -- npx -y @nuver-labs/[email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "image-gen": {
      "command": "npx",
      "args": [
        "-y",
        "@nuver-labs/[email protected]"
      ],
      "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>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "image-gen": {
      "command": "npx",
      "args": [
        "-y",
        "@nuver-labs/[email protected]"
      ],
      "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>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "image-gen": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@nuver-labs/[email protected]"
      ],
      "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>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`GEMINI_API_KEY` Optional, secret	Google Gemini API key. Enables the Gemini provider. At least one provider key is required.
`OPENAI_API_KEY` Optional, secret	OpenAI API key. Enables the OpenAI provider. At least one provider key is required.
`IMAGE_GEN_MCP_DEFAULT_PROVIDER` Optional	Provider used when a tool call does not name one: gemini or openai. Defaults to whichever key is set, preferring gemini.
`IMAGE_GEN_MCP_GEMINI_MODEL` Optional	Default Gemini model. Defaults to gemini-3.1-flash-image.
`IMAGE_GEN_MCP_OPENAI_MODEL` Optional	Default OpenAI model. Defaults to gpt-image-2.
`IMAGE_GEN_MCP_OUTPUT_DIR` Optional	Directory used when a tool call passes no output_path.
`IMAGE_GEN_MCP_ALLOWED_DIRS` Optional	Comma separated directories that file reads and writes are confined to. Unset means unrestricted.
`IMAGE_GEN_MCP_TIMEOUT_MS` Optional	Per-request timeout to the provider API in milliseconds. Defaults to 180000.
`IMAGE_GEN_MCP_LOG_FILE` Optional	Path of the JSONL image ledger. Defaults to ~/.image-gen-mcp/images.jsonl. Set to none to disable the file.

Details

Package	`@nuver-labs/[email protected]` (NPM, stdio)
First published	13 Aug 2026
Last updated	13 Aug 2026
Registry name	`com.nuverlabs/image-gen`

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Installed and run on your own machine, so there is no public endpoint to check.

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