MCP Servers

MCP OpenAI Image Generator

MCP server that wraps OpenAI's gpt-image-2 image generation API, enabling image generation from text prompts, listing saved images, and loading images inline.

README

MCP OpenAI Image Generator

MCP server that wraps OpenAI's gpt-image-2 image generation API.

Tools

Tool	Description
`generate_image`	Generate images from text prompts using gpt-image-2
`list_generated_images`	List all previously generated images in the output folder
`load_image`	Load and display a saved image inline

Setup

1. Build

npm install
npm run build

2. Configuration

Environment variables:

Variable	Default	Description
`OPENAI_API_KEY`	(required)	Your OpenAI API key
`OPENAI_BASE_URL`	(optional)	Custom base URL (e.g. a self-hosted proxy); defaults to official OpenAI endpoint
`IMAGE_OUTPUT_DIR`	`./generated_images`	Where to save generated images

3. Register with Claude Desktop / Kiro CLI

Add to your MCP config (e.g. ~/.claude/mcp.json or Claude Desktop claude_desktop_config.json):

{
  "mcpServers": {
    "openai-image": {
      "command": "node",
      "args": ["D:/project/fully_async/mcp-openai-image/dist/index.js"],
      "env": {
        "OPENAI_API_KEY": "your-openai-api-key",

        "IMAGE_OUTPUT_DIR": "D:/project/fully_async/mcp-openai-image/generated_images"
      }
    }
  }
}

Usage Examples

Architecture diagram

generate_image(
  prompt = "AWS microservices architecture diagram: React SPA → API Gateway → 3 Lambda functions (auth, orders, products) → DynamoDB + S3. Clean white background, blue/orange color scheme, connected with arrows, professional tech style.",
  size = "1536x1024",
  quality = "high"
)

System design

generate_image(
  prompt = "System design diagram for a real-time chat application: WebSocket servers, Redis pub/sub, message queue (Kafka), PostgreSQL, CDN for media. Dark background, neon connectors, modern style.",
  size = "1536x1024",
  quality = "medium"
)

Supported Parameters

Parameter	Options	Default
`size`	`1024x1024`, `1024x1536`, `1536x1024`, `auto`	`1024x1024`
`quality`	`low`, `medium`, `high`, `auto`	`medium`
`n`	1–4	`1`
`output_format`	`png`, `jpeg`, `webp`	`png`
`save_to_disk`	`true` / `false`	`true`
`output_dir`	any path	`./generated_images`

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