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MCP Explained: An Open Standard Connecting AI Apps to Tools and Data

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Model Context Protocol (MCP) is an open standard released in November 2024 that defines how AI applications connect to external tools and data sources. Without a shared standard, linking 5 AI apps to 10 tools would require 50 custom connectors, whereas MCP reduces this to 15 integrations, with each tool and app implementing the protocol once. Once connected, AI systems can read user-selected folders, query databases, operate a browser, and work with calendars and notes. The article advises users to connect only trusted servers, grant access only to what is necessary, and remove unused connections. It argues that this capability shifts AI from conversation alone to taking actions, which makes access permissions more important.

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