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bauerelizabeth07139

mcp-simple-image

by bauerelizabeth07139
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Python
Remote

mcp-simple-image

A simple MCP (Model Context Protocol) tool for generating images from text prompts using StepFun-compatible APIs. Configurable endpoint, API key, and model.

Features

  • Simple MCP tool: simple_image

  • Fully configurable: API base URL, API key, model name

  • Zero external dependencies (pure Python stdlib)

  • Works with StepFun step_plan API and compatible endpoints

Related MCP server: ElevenLabs Image Generation MCP Server

Installation

git clone https://github.com/bauerelizabeth07139/mcp-simple-image.git
cd mcp-simple-image

Configuration

Set your API key via environment variables (recommended) or a config.json file.

Option 1: Environment Variables

STEP_API_KEY=your_api_key_here
STEP_API_BASE=https://api.stepfun.com/step_plan/v1
STEP_MODEL=step-image-edit-2

Option 2: Config File

Copy config.example.json to config.json and fill in your values:

{
  "api_key": "your_api_key_here",
  "api_base": "https://api.stepfun.com/step_plan/v1",
  "model": "step-image-edit-2",
  "size": "1024x1024",
  "n": 1
}

Usage

Run the MCP server

python server.py

Use with opencode

Add to your opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "simple-image": {
      "type": "local",
      "command": [
        "python",
        "/path/to/mcp-simple-image/server.py"
      ],
      "enabled": true,
      "environment": {
        "STEP_API_KEY": "your_key_here",
        "STEP_API_BASE": "https://api.stepfun.com/step_plan/v1",
        "STEP_MODEL": "step-image-edit-2"
      }
    }
  }
}

Or if you use a config.json file in the same directory:

{
  "mcp": {
    "simple-image": {
      "type": "local",
      "command": ["python", "/path/to/mcp-simple-image/server.py"],
      "enabled": true
    }
  }
}

Tool: simple_image

Parameter

Type

Required

Default

Description

prompt

string

Yes

-

Text description of the image

model

string

No

(from config)

Model name

size

string

No

(from config)

Image dimensions, e.g. 1024x1024

n

integer

No

(from config)

Number of images (1-4)

Example prompt in opencode:

Use simple_image to generate: a cute cat astronaut floating in space, cinematic lighting, 8K

Testing

# Direct API test
python test_api.py

# MCP protocol test
python test_mcp.py

License

MIT

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