Three ComfyUI MCP servers for Claude Code compared on ports, file access and token use

A developer installed three ComfyUI MCP servers at pinned versions and measured them with Claude Code 2.1.312 on macOS against ComfyUI 0.35.0. With their default stdio transport, none of the servers opened a listening port, so the real differences lie in how much local files they read and write and how many tokens their tool definitions consume. The largest community server, comfyui-mcp, offers the widest feature set, while the official comfy-mcp shells out to comfy-cli and comfyui-mcp-secure focuses on workflow inspection, path sanitizing and audit logging. Two of the servers also provide an HTTP mode, and testing showed that without a configured token they accepted requests even from an unfamiliar Origin header, which the MCP specification says should be rejected with a 403. The write-up is aimed at defenders, covering which settings and versions to change and where to check for traces.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.


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