Image Generator (OpenAI) MCP server

This tool enables Claude to communicate with OpenAI and use gpt-image-1 for generating image assets. It's particularly useful for game or web development projects when you need to create individual visual elements.

Requirements

• Node.js
• An OpenAI API Key with organization ID verification

Installation

Setting Up Your API Key

1. Obtain an API KEY from the OpenAI website

2. Export it in your shell as API_KEY:

export API_KEY=sk-proj-....

3. Configure your Claude settings by running this command in the same shell:

jq --arg apiKey "$API_KEY" \
'.mcpServers = (.mcpServers // {}) | 
 .mcpServers["mcp-asset-gen"] = {
   type: "stdio",
   command: "npx",
   args: ["mcp-asset-gen"],
   env: { API_KEY: $apiKey }
 }' ~/.claude.json > ~/.claude.tmp && mv ~/.claude.tmp ~/.claude.json

Usage

After installation, you can immediately ask Claude to generate images. The workflow is simple:

1. Request an image generation from Claude
2. Provide additional details when prompted
3. Claude will use the MCP server to generate the image using OpenAI's capabilities

Example Conversation

When you want to generate an image, just ask Claude directly:

User: generate a small logo image that i could use for my arcade game

Claude: I'll generate a logo for your arcade game. Please provide a more specific description of what you'd like to see in the logo (colors, style, game theme, etc.) for better results.

User: It should look like an old school pacman machine (like a wooden arcade machine)

Claude: [Generates and saves image]

The generated image will be saved to your local filesystem, and Claude will provide the path to access it.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "mcp-asset-gen" '{"type":"stdio","command":"npx","args":["mcp-asset-gen"],"env":{"API_KEY":"${API_KEY}"}}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "mcp-asset-gen": {
            "type": "stdio",
            "command": "npx",
            "args": [
                "mcp-asset-gen"
            ],
            "env": {
                "API_KEY": "${API_KEY}"
            }
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "mcp-asset-gen": {
            "type": "stdio",
            "command": "npx",
            "args": [
                "mcp-asset-gen"
            ],
            "env": {
                "API_KEY": "${API_KEY}"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect