How do I install the comfy mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `COMFY_URL`, `COMFY_WORKFLOW_JSON_FILE`, `PROMPT_NODE_ID`, `OUTPUT_NODE_ID`, `OUTPUT_MODE` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

SSyncDev

Start a project

Comfy MCP Server

MCP Server for ComfyUI text to image Workflow

Remote serverstreamable-httpPython

What is the Comfy MCP Server?

MCP Server for ComfyUI text to image Workflow

What the server does

This script sets up a server using the FastMCP framework to generate images based on prompts using a specified workflow. It interacts with a remote Comfy server to submit prompts and retrieve generated images.

Credentials and setup notes

uv package and project manager for Python. - Workflow file exported from Comfy UI. This code includes a sample Flux-Dev-ComfyUI-Workflow.json which is only used here as reference. You will need to export from your workflow and set the environment variables accordingly. You can install the required packages for local development:

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Configuration

uv package and project manager for Python. - Workflow file exported from Comfy UI. This code includes a sample Flux-Dev-ComfyUI-Workflow.json which is only used here as reference. You will need to export from your workflow and set the environment variables accordingly. You can install the required packages for local development:

Variable	Description	Required
COMFY_URL	Endpoint or connection string the server talks to.	Yes
COMFY_WORKFLOW_JSON_FILE	Configuration value read at startup.	Optional
PROMPT_NODE_ID	Configuration value read at startup.	Optional
OUTPUT_NODE_ID	Configuration value read at startup.	Optional
OUTPUT_MODE	Configuration value read at startup.	Optional

Frequently asked questions

MCP Server for ComfyUI text to image Workflow Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.