ComfyUI Builder is a Model Context Protocol (MCP) server: ComfyUI MCP server: knowledge base, workflow builder, real-time execution, models, plugins. In practice that means any MCP-compatible AI assistant can call ComfyUI Builder's tools directly — the model decides when to use them in a conversation or agent run.
It runs locally: the npm package mcp-comfy-ui-builder speaks MCP over stdio on your machine. No credentials are required — it works out of the box. The current release is v2.4.1, published under the MIT license, with source at MIt9/mcp-comfy-ui-builder on GitHub.
ComfyUI Builder is listed under AI & Agents on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain ComfyUI Builder for MIt9, claim this listing to verify ownership, earn the Verified badge, and keep the details current.
▸npm package — mcp-comfy-ui-builder · MCP over stdio
▸Open source — MIT license · MIt9/mcp-comfy-ui-builder