AI Playground ComfyUI MCP

This workspace exposes AI Playground's running ComfyUI backend to VS Code and GitHub Copilot through a local Streamable HTTP MCP server.

Prerequisites

• Windows 10 or 11 with PowerShell

• Python 3.11, available through the Windows py launcher

• Intel AI Playground installed and able to generate images with Draft Image - Fast

The direct Python packages are mcp==2.0.0, mcp-types==2.0.0, and httpx==0.28.1. Pip installs their transitive dependencies automatically.

Related MCP server: ComfyUI MCP Server

Setup

From the repository root, create the virtual environment expected by the launcher and install the pinned dependencies:

py -3.11 -m venv ____env
.\____env\Scripts\python.exe -m pip install --upgrade pip
.\____env\Scripts\python.exe -m pip install -r requirements.txt

To verify the installation, run the unit tests:

.\____env\Scripts\python.exe -m unittest discover -s tests -v

Start

1. Start AI Playground and generate at least one image with Draft Image - Fast.

2. From this workspace, run:

   .\start-server.ps1

3. Keep that terminal open. Use the endpoint for your client:

   • VS Code or another Windows client: http://127.0.0.1:8765/mcp

   • SuperClaw with default WSL NAT: http://host.docker.internal:8765/mcp

   The server binds to 0.0.0.0 so SuperClaw's WSL/Docker backend can reach it. Keep Windows Firewall enabled; this MCP server does not provide user authentication.

4. In VS Code's MCP server view, start or refresh aipg-comfyui.

Press Ctrl+C in the server terminal to stop it.

Configuration

The server automatically uses the standard Windows AI Playground locations:

• Resources: %LOCALAPPDATA%\Programs\AI Playground\resources

• Generated images: %USERPROFILE%\Documents\AI-Playground\media

• Workflow: workflows\draft_image_fast.json in this project

• MCP listener: 0.0.0.0:8765

Set any of these environment variables before starting the server to override a default: AIPG_RESOURCES_DIR, AIPG_OUTPUT_DIR, AIPG_WORKFLOW_PATH, AIPG_MCP_HOST, or AIPG_MCP_PORT.

For example:

$env:AIPG_OUTPUT_DIR = "D:\AI-Playground\media"
.\start-server.ps1

Overrides apply to the launched server process and must refer to the matching AI Playground installation and output locations.

Tools

• comfyui_status: verifies that AI Playground's ComfyUI backend is reachable.

• generate_image: generates a PNG with the captured Draft Image - Fast workflow.

generate_image accepts prompt, negative_prompt, width, height, steps, and seed. Width and height must be multiples of 8 between 64 and 2048. Use seed -1 for a random image. Four steps is the tuned default for the bundled LCM workflow.

Generated files remain in %USERPROFILE%\Documents\AI-Playground\media by default and are also returned as MCP image content.

Troubleshooting

• Start AI Playground before calling either tool.

• If authentication fails after restarting AI Playground, call the tool again; the bridge discovers the newest rotating token on every invocation.

• If port 8765 is already in use, stop the other process before running the launcher.

• The ComfyUI nodes_glsl.py OpenGL warning in the supplied log is unrelated to this MCP bridge and does not prevent image generation.