Model Context Protocol - Stateless MCP Servers with Streamable HTTP - Why this is BIG!
AI Summary
The video discusses the significant changes in Anthropic’s MCP protocol, particularly the shift from Server-Sent Events (SSE) to streamable HTTP as its transport method. This transition is positioned as a major improvement, enhancing the protocol’s capabilities. The presenter demonstrates how to set up both stateful and stateless MCP servers and how to implement a proxy server to adapt existing SSE-based servers without modification. The video covers the advantages of stateful connections for more complex tools, such as processes involving sampling, while emphasizing the efficiency of stateless connections for simpler tasks. Several practical coding examples are provided, showing how to initialize sessions, make tool calls, and manage connections effectively. By the end, the presenter argues for the benefits of adopting stateless connections as the default setup for new MCP servers, while retaining options for stateful connections when necessary.