Comfy MCP, Comfy Org's official ComfyUI MCP server

• Makes an image from a text prompt using a built-in free template

  Turns a text prompt into an image in one step by running ComfyUI's built-in text-to-image template on your ComfyUI. It does not spend credits.

  Try: “Make an image of a lighthouse at dawn in oil-paint style”

  Runs code · generate_image

• Runs a ComfyUI workflow file and returns the result

  Runs a workflow file you have (exported from ComfyUI) on your ComfyUI, waiting for it or running it in the background. Workflows with paid partner nodes only run after you confirm the spend.

  Try: “Run the workflow at ~/workflows/txt2img.json and show me the image”

  Runs code · run_workflow

• Runs a ready-made gallery template with your settings

  Fetches a template from the Comfy gallery, fills in values such as the prompt, and runs it in one step. Templates that use paid partner models only run after you confirm.

  Try: “Run the Wan 2.2 text-to-video template with the prompt 'a fox running through snow'”

  Runs code · run_template

• Generates with a paid hosted model like Flux or Kling, after you approve

  Runs a hosted partner model such as Flux, Ideogram or Kling on the partner's servers and saves the result. Every call spends Comfy credits and asks you first.

  Try: “Generate a product photo of a red sneaker with Flux Pro”

  Write · partner_generate

• Copies a finished job's images or videos into a folder you choose

  Copies the files a finished job produced into a folder you name, and can show the images straight in the chat.

  Try: “Save the outputs of that last job to ./outputs”

  Write · fetch_outputs

• Shows a video as a contact sheet or audio as a waveform image

  Turns a video into a grid of frames, or audio into a waveform picture, so the assistant can look at the result.

  Try: “Show me a contact sheet of the video you just made”

  Files · preview_media

• Finds ready-made workflow templates by keyword, type or model

  Searches the Comfy template gallery by words, media type, model or provider, and marks which templates use paid partner models.

  Try: “Find a free image-to-video template”

  Network · search_templates

• Shows a template's details and whether your install can run it

  Shows one template's details and checks it against your ComfyUI to tell you if any nodes or models are missing.

  Try: “Can my install run the Flux Kontext template?”

  Network · get_template

• Saves a template as a workflow file ready to run

  Writes a template's runnable workflow file to the path you give, and reports whether your install can run it.

  Try: “Save the default text-to-image template to ./wf.json”

  Write · fetch_template

• Lists or searches the model files on your disk

  Lists the model files in your ComfyUI models folders, or searches them by name.

  Try: “Which LoRAs do I have installed?”

  Files · search_models

• Searches your installed nodes and shows how they connect

  Searches the node types in your running ComfyUI, custom nodes included, shows a node's inputs and outputs, and finds which nodes can connect to each other.

  Try: “Which node can turn a latent into an image?”

  Read · nodes

• Lists the paid hosted models you can generate with

  Lists the hosted partner models available for generation, filterable by style, partner or keyword.

  Try: “Which partner models can make video from an image?”

  Network · list_partner_models

• Shows the settings a partner model accepts

  Shows what settings and inputs one partner model takes, without running it or spending credits.

  Try: “What settings does Kling image-to-video take?”

  Network · partner_model_schema

• Checks a workflow for missing nodes or models before you run it

  Checks a workflow file against your ComfyUI and lists problems such as missing models or wrong values, with suggestions for what you have instead.

  Try: “Check ./wf.json before running it”

  Files · validate_workflow

• Lists the settings you can change in a workflow

  Lists the values in a workflow that can be changed, such as prompt, seed, steps or model, with their current values.

  Try: “What can I change in this workflow?”

  Files · list_workflow_slots

• Reads the notes a template's author left inside it

  Reads the notes written inside a workflow, such as trigger words, model download links and usage tips.

  Try: “Does this template say which models I need?”

  Files · list_workflow_notes

• Changes settings like prompt, seed or steps in a workflow

  Changes values in a workflow, such as the prompt, seed, steps or model, and returns the edited workflow without overwriting the file by default.

  Try: “Set the seed to 42 and steps to 30 in ./wf.json”

  Write · set_workflow_slot

• Makes several versions of a workflow with different settings

  Creates a set of workflow variants from lists of values, for example several prompts or seeds, so you can run them as a batch.

  Try: “Make three versions of this workflow with different prompts”

  Write · vary_workflow

• Finds which custom node packs a workflow needs

  Works out which custom node packs a workflow uses and which of them you have not installed yet.

  Try: “Which node packs do I need for this workflow?”

  Files · workflow_deps

• Checks whether a node pack's Python requirements are met

  Compares a custom node pack's required Python packages with what is installed, before or after you install the pack.

  Try: “Why are the Impact Pack nodes failing to load?”

  Files · node_dependencies

• Puts your images or masks into ComfyUI's input folder

  Copies images or masks from your computer into ComfyUI's input folder so workflows like image-to-image or inpainting can use them.

  Try: “Upload ~/Pictures/cat.png so we can restyle it”

  Write · upload_file

• Downloads a model file from a direct link into your models folder

  Downloads a model file from a direct Hugging Face or CivitAI link into your ComfyUI models folder, in the background.

  Try: “Download this LoRA from Hugging Face into models/loras”

  Write · download_model

• Installs custom node packs from the registry, after you approve

  Installs custom node packs from the Comfy registry into your ComfyUI. It runs the packs' own install code, so it asks you every time.

  Try: “Install comfyui-impact-pack”

  Runs code · install_node

• Updates ComfyUI, its custom nodes or comfy-cli

  Updates ComfyUI itself, comfy-cli, or all installed custom node packs. Updating all node packs asks you first because it runs their new code.

  Try: “Update ComfyUI to the latest version”

  Runs code · update_comfyui

• Moves ComfyUI to a specific version, after you approve

  Switches your ComfyUI install to a chosen version, for example to roll back after a bad update. It stashes local edits, reinstalls dependencies and asks you first.

  Try: “Roll ComfyUI back to version 0.24.0”

  Delete · switch_comfyui_version

• Starts ComfyUI in the background

  Starts your local ComfyUI in the background. Opening it to your network asks you first, because ComfyUI has no login.

  Try: “Start ComfyUI”

  Runs code · launch_comfyui

• Stops the ComfyUI it started

  Stops the ComfyUI that comfy-cli started earlier.

  Try: “Stop ComfyUI”

  Runs code · stop_comfyui

• Restarts ComfyUI, for example after installing nodes

  Stops and starts ComfyUI again, with new options if you give them. It asks before stopping a ComfyUI it did not start.

  Try: “Restart ComfyUI so the new nodes load”

  Runs code · restart_comfyui

• Frees graphics memory by unloading ComfyUI's models

  Asks ComfyUI to unload its models and clear its cache to free graphics memory, without stopping a running job.

  Try: “Free up VRAM before the next video run”

  Write · free_memory

• Shows free graphics memory and RAM on your ComfyUI

  Reports how much graphics memory and system memory your running ComfyUI has free.

  Try: “How much VRAM is free right now?”

  Read · system_stats

• Shows your Comfy credit balance and plan

  Shows your Comfy Cloud credit balance, subscription plan, renewal date and how many jobs you can run at once. It spends nothing.

  Try: “How many Comfy credits do I have left?”

  Network · billing_status

• Starts signing you in to your Comfy account

  Starts a Comfy account sign-in and gives you a link to open in your browser, needed for paid partner nodes.

  Try: “Sign me in to Comfy”

  Network · auth_login

• Checks whether you are signed in to Comfy

  Checks whether a Comfy account sign-in or API key is set up, without showing any secrets.

  Try: “Am I signed in to Comfy?”

  Network · auth_status

• Shows the latest lines of ComfyUI's log

  Shows the most recent lines from the background ComfyUI's log file, useful when something fails.

  Try: “Show me the last 100 lines of the ComfyUI log”

  Files · get_logs

• Checks, waits for, follows or cancels a generation job

  Checks a job's status, waits for it to finish, streams its progress, explains why it failed, cancels it, or lists the queue.

  Try: “Why did that last job fail?”

  Write · job

• Checks progress of a model download, or cancels it

  Shows how far a model download has got, waits for it to finish, or cancels it and removes the partial file.

  Try: “Is the checkpoint download finished?”

  Delete · download

• Writes a workflow that runs a partner model through your ComfyUI

  Writes a workflow file that uses a partner model's node, so your own ComfyUI runs it. Writing it is free; running it spends credits.

  Try: “Write a Nano Banana workflow I can edit and run locally”

  Write · emit_partner_workflow

• Used by the assistant behind the scenes

  Checks whether ComfyUI is running and what hardware you have

  Reports whether your ComfyUI is running, where, which workspace it uses, your graphics card and memory, and whether ComfyUI or nodes are out of date.

  Try: “Is my ComfyUI running?”

  Read · server_info

• Shows which ComfyUI install it is pointed at

  Shows which ComfyUI install and workspace comfy-cli is set to use.

  Try: “Which ComfyUI folder are you using?”

  Read · which

• Shows or sets up the project folder it works in

  Reports or creates the project setting that tells the server which folder relative paths start from.

  Try: “Set up a Comfy project in this folder”

  Write · project

• Reads comfy-cli's own command reference

  Loads comfy-cli's description of its own commands so the assistant can learn what it supports.

  Try: “What commands does comfy-cli support?”

  Read · discover

Watch out for

• Partner models spend your Comfy credits

  Hosted partner models bill credits on every run, and workflows with partner nodes spend once you confirm. Custom nodes that call their own paid services are not gated, so check workflows you did not build. github.com

• It can install and run third-party node code

  Installing node packs or updating all of them runs code from their authors in your ComfyUI setup. Each call asks you first; approve only packs you know. github.com

• ComfyUI has no login of its own

  Starting ComfyUI on a network address lets anyone who can reach your machine run workflows and read or write its files. The server asks before doing that; say no unless you need it. github.com

• Version switches can stash your local edits

  Moving ComfyUI to another version stashes uncommitted changes in its folder and reinstalls its dependencies. It asks first and refuses while ComfyUI is running. github.com

• Cloud downloads run a command in your shell

  The cloud server hands your agent a signed link and a curl command to save the file. Check where the command saves it before you approve it. docs.comfy.org

Security advisories

In their words