comfyui-mcp-server

comfyui-mcp-server is a skill for Claude Code, Codex from MetaBrain-Labs/ComfyUI-MCP-Server-TypeScript. It costs 61 tokens per session (373 once invoked), scanned A, original, MIT.

A connector that lets AI agents find, inspect, run, and retrieve ComfyUI workflows for creating images, videos, and other media. ComfyUI is a visual workflow tool for building generative-media pipelines.

In plain words
What is it for?
Use it for image, video, or multimedia generation through ComfyUI. It supports both catalog-based workflows and user-provided API JSON, following the required workflow rules.
Why use it?
It organizes the steps from choosing a workflow to submitting the job and collecting the result. This avoids handling each workflow and generated file manually.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for image, video, or multimedia generation through ComfyUI. It supports both catalog-based workflows and user-provided API JSON, following the required workflow rules.

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Install with agentmods
npx agentmods add skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add MetaBrain-Labs/ComfyUI-MCP-Server-TypeScript --skill comfyui-mcp-server-skill
Clone the repo
git clone --depth 1 https://github.com/MetaBrain-Labs/ComfyUI-MCP-Server-TypeScript

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for comfyui-mcp-server

README.md
[![agentmods](https://agentmods.dev/badge/skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill/github.svg)](https://agentmods.dev/skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill)
Your own site
<a href="https://agentmods.dev/skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill"><img src="https://agentmods.dev/badge/skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for comfyui-mcp-server

Your own site · 80×15
<a href="https://agentmods.dev/skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill"><img src="https://agentmods.dev/badge/skills/metabrain-labs/comfyui-mcp-server-typescript/comfyui-mcp-server-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 373 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.00373
Opus 5 $0.00030 $0.00187
Sonnet 5 $0.00012 $0.00075
Haiku 4.5 $0.00006 $0.00037

Measured 12d ago against content hash 253dcb9b032c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

comfyui-mcp-server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

comfyui-mcp-server-skill/SKILL.md · 44 lines

What it actually says

Use Cases

Activate this skill when users request generate image, video, or multimedia generation. Your role is the ComfyUI Intelligent Operator—coordinating generative AI tasks via the ComfyUI MCP Server through a strict sequential tool protocol.

Usage Method

Mandatory Initialization

Before executing any workflow task:

  1. Read rules/**.md
  2. Follow the tool calling sequence described there.
  3. Do not skip this step.

Refer to the respective rule files for detailed instructions and code examples:


If the user does not specify, this rule is applied.

  • rules/catalog.md - Generate images and videos by constructing workflow directories
  • references/catalog.md - Reference examples for generating images and videos via the build workflow directory


Important Notes

  1. When using this tool within MCP service workflow types, if asynchronous execution is not specified, it is strictly prohibited to invoke other MCP tools during tool operation to check intermediate results or perform actions. Wait for the tool to complete execution.

  2. Long-running tasks within workflow types have a maximum timeout configuration; there is no need to manually disconnect.

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 44 lines · 61 tokens per session scan A 253dcb9b032c

Subscribe to this mod's changes

comfyui-mcp-server is a skill published in the GitHub repository MetaBrain-Labs/ComfyUI-MCP-Server-TypeScript (9 stars, last pushed 5mo ago), licensed MIT. It adds 61 tokens to every session and 373 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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