Understanding the Architecture of MCP (Model Context Protocol)
summary
MCP standardizes exposing functions, files and prompt templates to LLM-based agents using JSON-RPC 2.0 and a discovery method; every request carries a stateless _meta field so servers scale horizontally and lose sticky sessions (change applied July 28). Two transports exist: stdio and streamable HTTP for local and remote servers. Implementations use MCP clients/hosts, common C SDK examples call tools and list resources; deprecated methods such as sampling and session handshakes are removed.
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chapters (9)
- 0:00Model Context Protocol intro
- 1:04What MCP is
- 4:45MCP architecture
- 7:58Data layer features
- 12:19Transport layer
- 16:17MCP primitives
- 19:53MCP methods evolution
- 20:35MCP transport options
- 22:03MCP code examples
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