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This is a Comfy Cloud feature and is only available in the cloud version. To learn more about Comfy Cloud, see Comfy Cloud.

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Overview

Comfy Cloud MCP is in closed beta — invite only. Access is gated by a per-user feature flag. If you don’t have access yet, sign up for the waitlist.
The Comfy Cloud MCP server connects AI agents to Comfy Cloud over the Model Context Protocol. Once connected, you can generate images, video, audio, and 3D, search models, nodes, and templates, and run ComfyUI workflows — all from a chat with your agent. Support is currently scoped to Claude Code and Claude Desktop, which sign in with OAuth — a one-time browser sign-in. Support for more clients is coming.

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Install

Pick your client:

Claude Code

Install the plugin — connection and commands in one step.

Claude Desktop

Add a custom connector in the app, then sign in.

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Claude Code

Install the comfy-cloud plugin — it adds the MCP connection and the slash commands in one step.
1

Add the marketplace

2

Install the plugin

3

Sign in

Run /mcp, select comfy-cloud → Authenticate. Your browser opens to sign in, and tokens refresh automatically.
The plugin adds these slash commands:
Add the server directly (no slash commands):
Then run /mcp, select comfy-cloud → Authenticate. Add -s user to make it available in all your projects.

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Claude Desktop

Claude Desktop adds Comfy Cloud as a custom connector through its UI, then runs the OAuth sign-in.
1

Open Connectors

In Claude Desktop, open Customize, then choose Connectors.Claude Desktop Connectors
2

Add a custom connector

Click the + button, then choose Add custom connector.Add custom connector
3

Enter the server URL

Name it anything (for example, Comfy Cloud) and set the Remote MCP server URL to:
Connector details
4

Sign in

Click Add, then sign in through Claude Desktop when prompted. You are connected.Sign in through Claude Desktop

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Headless / CI (API key)

Claude Code and Claude Desktop use OAuth, so you do not need an API key. For headless or CI setups where no browser is available, authenticate with an API key instead:
1

Create a key

Go to platform.comfy.org/profile/api-keys, click New API Key, and copy it (it starts with comfyui-).
2

Add the server with the key header

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FAQ

Claude Code and Claude Desktop today, both signing in with OAuth. Support for more clients is coming.
Not for Claude Code or Claude Desktop — they use OAuth. An API key is only needed for headless or CI setups with no browser.
No. The slash commands ship in the Claude Code plugin. Claude Desktop connects to the same MCP server (so the tools work — just ask in plain language), but it doesn’t support Claude Code plugins or slash commands.
In Claude Code, run /mcp, select comfy-cloud, and choose Authenticate. In Claude Desktop, reopen the connector from Customize → Connectors and trigger sign-in.