Anthropic's open standard that lets AI models discover and invoke external tools through a JSON-RPC based server/client protocol.
Five passes over the same idea, each from a different angle. Do them in order, or jump to whichever you need.
MCP (Model Context Protocol) standardises how AI models talk to the world. Instead of each LLM having its own plugin API, MCP provides a universal tool-discovery and invocation protocol. An MCP server exposes resources, tools, and prompts. An MCP client (like Claude, Cursor, or your custom agent) discovers them at runtime. The result: write a tool once, use it everywhere.
