ComfyUI MCP Server (artokun): Setup for Claude Code, Cursor and Other Apps

• Generates images, video, audio or 3D from a prompt

  Builds and runs a ComfyUI workflow from one line. Actions cover plain text-to-image, ControlNet and IP-Adapter guidance, video, audio, 3D, upscaling and background removal. It fills gaps from your saved defaults and picks a checkpoint for you.

  Try: “Generate an image of a sunset over mountains.”

  Write · generate_image

• Views, lists and analyses generated images

  Returns a generated image so the assistant can see it, lists recent outputs and assets, gives an image's palette and contrast, and shows how an asset was made.

  Try: “Show me the last three images you made.”

  Network · get_image

• Runs a workflow you supply or a template

  Submits a workflow and returns right away. It can also re-run a past generation, run a shared workflow from a URL, or run a bundled template with your overrides.

  Try: “Run this workflow with a different seed.”

  Write · enqueue_workflow

• Shows and manages the ComfyUI job queue

  Lists running and pending jobs, checks one job, and can reorder, edit or cancel pending jobs.

  Try: “What is in the queue right now?”

  Write · queue

• Shows past runs, errors and good settings

  Returns execution history with errors and timings, explains why a run failed, and suggests sampler, steps and CFG settings that worked before on your machine.

  Try: “Why did my last run fail?”

  Network · get_history

• Builds a workflow from a template or by editing

  Creates workflows from templates such as txt2img, img2img, inpaint, upscale, ControlNet and audio, and edits them node by node.

  Try: “Make an inpaint workflow I can run.”

  Write · create_workflow

• Reads saved workflows from your library

  Lists the saved workflows, returns one by filename, or summarises what it does.

  Try: “List my saved workflows.”

  Files · get_workflow

• Saves a workflow to your library

  Stores a workflow, overwriting a file with the same name, and can record a lock of the models and node versions it used.

  Try: “Save this workflow as portrait-v2.”

  Write · save_workflow

• Draws a workflow as a diagram

  Renders a workflow you pass in as a Mermaid flowchart, and converts between workflow formats.

  Try: “Draw a diagram of this workflow.”

  Read · visualize_workflow

• Reads or sets your generation defaults

  Shows the merged defaults with where each came from, updates them, and can save to the config file. It can also read and write ComfyUI's own interface settings.

  Try: “Set my default steps to 30.”

  Write · get_defaults

• Copies a local image into ComfyUI

  Copies an image from your computer into ComfyUI's input folder for img2img, inpainting or ControlNet.

  Try: “Upload ~/Pictures/pose.png for ControlNet.”

  Write · upload_image

• Lists the models installed in ComfyUI

  Shows installed checkpoints, LoRAs, VAEs, upscalers and more, and where ComfyUI looks for them.

  Try: “Which checkpoints do I have?”

  Network · list_local_models

• Downloads model files and tracks them

  Fetches model weights from a URL into the right ComfyUI folder, checks transfer status, cancels, and searches HuggingFace and Civitai.

  Try: “Download the SDXL base checkpoint.”

  Write · download_model

• Edits metadata inside model files

  Reads and curates the metadata embedded in .safetensors model files.

  Try: “Show the trigger words stored in this LoRA.”

  Write · model_metadata

• Frees GPU memory

  Unloads cached models through ComfyUI and reports memory before and after.

  Try: “Free up VRAM.”

  Write · clear_vram

• Shows GPU, VRAM and server logs

  Returns GPU, VRAM, Python and OS details, and can return ComfyUI's logs with a keyword filter.

  Try: “How much VRAM is free?”

  Network · get_system_stats

• Searches the ComfyUI Registry for node packs

  Finds custom node packs by keyword, or returns one pack's details.

  Try: “Find a node pack for face restoration.”

  Network · search_custom_nodes

• Finds templates and dependencies for workflows

  Lists custom-node workflow templates, checks whether a workflow runs locally or spends paid API credits, works out which node packs a workflow needs and installs missing ones, and can write a skill file from a pack.

  Try: “What node packs does this workflow need?”

  Write · list_packs

• Installs, repairs or removes node packs

  Installs, repairs, enables, disables and removes custom node packs on your ComfyUI. Removal deletes the pack.

  Try: “Install ComfyUI-Impact-Pack.”

  Delete · install_custom_node

• Saves and restores custom-node snapshots

  Saves or restores the set of installed custom nodes through ComfyUI-Manager, like comfy node save-snapshot.

  Try: “Snapshot my current nodes before I update.”

  Runs code · node_snapshot

• Finds which custom node breaks things

  Disables nodes in halves, git-bisect style, to find the one causing a problem. It changes which nodes are enabled while it runs.

  Try: “ComfyUI crashes on start. Find the bad node.”

  Runs code · bisect

• Writes and publishes your own node pack

  Creates, edits, tests and publishes your own custom-node pack inside the custom_nodes folder. File actions stay inside that folder. It works on the local machine only.

  Try: “Create a simple node pack that crops images.”

  Delete · node_pack

• Sets up ComfyUI from a manifest file

  Applies a setup manifest: installs custom nodes, downloads models and installs pip packages. System packages are reported as skipped.

  Try: “Apply setup.yaml.”

  Runs code · apply_manifest

• Runs the official comfy-cli tool

  Wraps the official comfy command: status, start, stop and restart the server, job control, node search and more. It needs comfy-cli 1.11.1 or newer.

  Try: “Search loaded nodes for upscale.”

  Runs code · comfy_cli

• Stops or restarts ComfyUI

  Stops the running ComfyUI process, starts it again with the same launch arguments, or starts it from saved launch info.

  Try: “Restart ComfyUI.”

  Runs code · restart_comfyui

• Installs and configures ComfyUI itself

  Installs, updates and configures the local ComfyUI, its sidebar panel and this MCP server.

  Try: “Install ComfyUI on this machine.”

  Runs code · install_comfyui

• Inspects and manages ComfyUI workspaces

  Inspects and manages workspaces for local ComfyUI installs.

  Try: “List my ComfyUI workspaces.”

  Write · workspace

• Runs many workflows under one batch

  Runs many workflows under a durable batch ID, so a parameter sweep or a long list can be tracked and resumed.

  Try: “Run this workflow for five different prompts.”

  Write · batch

• Manages micro-apps in the ComfyUI panel

  Lists and runs named workflows packaged as one-click apps in the panel.

  Try: “Run my portrait app.”

  Write · apps

• Finds and runs paid partner API nodes

  Discovers hosted partner nodes such as Flux, Ideogram and Kling and runs them. They spend paid credits from your Comfy account, unlike a local GPU render.

  Try: “Which hosted image nodes can I use?”

  Write · list_api_nodes

• Checks whether comfy-kitchen can speed up a graph

  Reports what comfy-kitchen can do on this GPU, finds graph parts it could speed up, and applies the faster path.

  Try: “Can my GPU run this graph faster?”

  Write · kitchen

• Deploys and controls RunPod GPU pods

  Deploys, starts, stops, inspects and connects to RunPod cloud GPU pods and switches rendering between your machine and a pod. The tool says it spends money.

  Try: “Deploy a RunPod pod and render there.”

  Delete · runpod

• Watches a RunPod pod's status

  Shows a pod's live status in the panel, stops watching, or diagnoses why a pod is not usable. One action can stop a pod.

  Try: “Why is my pod not ready?”

  Write · runpod_watch

• Checks the LoRA training setup

  Checks and sets up the training machinery: Docker, GPU and the Python environment. It touches no datasets or jobs.

  Try: “Is my machine ready to train a LoRA?”

  Runs code · train_doctor

• Prepares images and captions for LoRA training

  Stages and curates the images and captions a training run uses, keyed by dataset name.

  Try: “Prepare my product photos as a dataset.”

  Write · train_prepare_dataset

• Starts, checks and stops LoRA training jobs

  Launches a training run, polls it, stops it, deletes it, and reads back its settings.

  Try: “Train a LoRA on the product dataset.”

  Delete · train_start

• Used by the assistant behind the scenes

  Does exact math

  Evaluates a batch of math expressions exactly, without ComfyUI. It handles numbers only.

  Try: “What is 1024 * 1.5 rounded to a multiple of 64?”

  Read · calculate

• Disabled issue reporting stub

  Kept for older prompts. It files nothing and contacts no service, and only returns the reporting status.

  Try: “(Not used.)”

  Read · report_issue

• Lists all tools in a compact catalog

  Part of a built-in facade that lists every tool, so clients with a stale tool list can still reach them.

  Try: “List the available tools.”

  Read · list_tools

• Describes one tool's inputs

  Returns the details of one tool in the catalog.

  Try: “Describe the queue tool.”

  Read · describe_tool

• Calls any tool by name

  Runs any catalog tool by name with its arguments, the same as calling it directly.

  Try: “Call the queue tool with action list.”

  Runs code · call_tool

Watch out for

• It can install and remove software

  Tools can install and delete custom node packs, run pip installs from a manifest and run training jobs. Approve those calls by hand. github.com

• It can spend money

  The RunPod tool says it spends money, and partner API nodes spend paid Comfy credits. Check costs before approving. github.com

• It can stop and restart ComfyUI

  It starts, stops and restarts the ComfyUI process, and can run the comfy-cli tool. Save your work first. github.com

• The remote option opens a public address

  The tunnel option makes a public URL protected by a token. Keep that token private and use it only when you need it. github.com

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