Superthread MCP Extended is an unofficial, enhanced Model Context Protocol (MCP) server designed as a superior drop-in replacement for the official Superthread MCP. It significantly expands functionality by offering 8 essential tools, complete CRUD operations for cards, boards, and spaces, and optimized responses to reduce token usage and accelerate tool chaining. Built on Cloudflare Workers, it leverages a serverless architecture, provides a free hosted version, and integrates seamlessly with AI assistants like Claude and Cursor.