MCP Protocol Engineering: Transport Evolution & Specs
Prerequisite: Familiarity with the concepts introduced in Executive Summary. Review it first if the terminology in this part is unfamiliar. Part 1 — MCP Core Protocol Architecture & Transport Evolution Answer-first: Model Context Protocol (MCP) relies on dual-transport abstractions (stdio for zero-overhead local process IPC and SSE for remote network RPCs) transmitting JSON-RPC 2.0 messages. Understanding the protocol state machine ensures sub-20ms message framing across distributed AI agent tool servers. ...