Model Context Protocol Explained: One Standard to Connect AI Apps to Any Service

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Model Context Protocol (MCP) is an open standard that defines how AI applications connect to external tools, databases, and services. Before MCP, every AI app had to build separate, custom integrations for each external service like Google Drive, GitHub, or Notion. MCP eliminates this by allowing any compatible AI application to connect to a single MCP server that exposes a given service's functionality. The protocol has three core components: a host (the AI app), a client (managing connections), and a server (exposing tools, data, and prompt templates). This "build once, use everywhere" approach significantly reduces integration complexity for developers building AI-powered applications.

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