MCP

Model Context Protocol, an open standard JSON-RPC interface that lets AI agents discover and call external tools through a unified protocol.

Definition

MCP defines a standardized way for AI agents to interact with external tools. An MCP server exposes tools with names, descriptions, and parameter schemas, and any MCP-compatible client (Claude Code, Cursor, VS Code) can use them. Each tool is self-describing, enabling capability discovery at runtime and cross-client portability. Key tradeoffs include context cost (MCP responses are often verbose JSON consuming many tokens) and blocking behavior (each call blocks the agent until it returns, with no parallelism).

Source

• Model Context Protocol — Official Site
• MCP Specification
• Model Context Protocol — Wikipedia

Related

• JSON
• Model