On November 25, 2024, Anthropic announced the Model Context Protocol in a post titled “Introducing the Model Context Protocol.” MCP is an open-source standard for connecting AI applications to external systems, including data sources such as local files and databases, tools such as search engines, and workflows. The official documentation site describes it as a standardized way to connect AI applications to external systems, comparing it to a USB-C port for AI.
The motivation is interoperability. Before a shared standard, each connection between an AI assistant and an external system tended to be built one at a time. MCP lets developers build a server once and have it work across many AI clients, reducing development time and complexity. The documentation notes broad ecosystem support, including assistants such as Claude and ChatGPT and development tools such as Visual Studio Code and Cursor.
For businesses, MCP matters because it turns isolated AI assistants into systems that can securely access company data and take actions through a common, reusable interface. By open-sourcing the standard, Anthropic helped seed an ecosystem that makes AI agents more practical to deploy across real enterprise tools and data.