The Universal Tool Calling Protocol (UTCP) is an open standard that describes how to call existing tools directly, eliminating the need for wrappers. It focuses on direct communication with tool endpoints (HTTP, gRPC, WebSocket, CLI, etc.) to reduce latency and maintain existing security and billing systems.
An exploration of the Model Context Protocol (MCP) and its potential to become a universal plugin system, extending far beyond its intended use for AI assistants. The article draws parallels to USB-C and other protocols that have found unexpected applications, highlighting the power of standardized connections.