Connect any React application to an MCP server in three lines of code

This post introduces `use-mcp`, a React library for building remote MCP clients, and open-sources the AI Playground. `use-mcp` abstracts away transport protocols (Streamable HTTP, SSE), authentication (OAuth 2.1), session management, and dynamic tool discovery. It provides connection state management, retry logic with backoff, and a debug log array. The AI Playground, built with Workers AI and `use-mcp`, offers a chat interface for interacting with MCP servers and LLMs, with built-in debugging and monitoring of MCP connections and tool invocations.