[OpenAI Engineer Announces: ChatGPT Sites Now Supports Hosting MCP Servers with Plugin Extensions] Reported by Jinse Finance, on October 1, OpenAI engineer responsible for plugins and MCP, Max Stoiber (@mxstbr), disclosed on the X platform that ChatGPT Sites now supports hosting MCP servers and includes plugin extension capabilities. He used the example of '@sites create a to-do list usable in ChatGPT' to illustrate. This command will: create an MCP server with extensions, deploy it to Sites, convert the MCP server into a plugin, and install the plugin for users across web, mobile, and desktop platforms. Stoiber stated that ChatGPT is gradually evolving into a 'malleable software' that anyone can customize on demand.