MCP, the Model Context Protocol, is an open protocol that connects applications built on large language models with external data sources and tools.
The MCP specification describes three roles. The host is the AI AI Artificial intelligence (AI) covers methods that let a computer perform tasks which would require intelligence if a person did them. Read in the glossary → application that opens the connections. Clients are the connectors inside that application. Servers are the services that supply data and functions. A server can offer resources (data and background information for the user or the AI model), prompts Prompt A prompt is the input a user gives a generative AI system, which then responds with an output. Read in the glossary → (ready-made messages and workflows for users) and tools (functions the AI model can execute). This lets a business application Business application In general terms, a business application is software used to perform or support business functions. Read in the glossary → give an AI agent AI agent An AI agent is a software system, built on a large language model, that carries out actions on its own and uses interfaces to other programs to reach its goal. Read in the glossary → a defined set of tools.
In December 2025 the official MCP project blog announced that MCP would become a founding project of the Agentic AI Foundation, which is set up under the Linux Foundation. According to the post, the Linux Foundation provides neutral infrastructure so that the people who maintain MCP can work independently, and it will not dictate MCP's technical direction.
When a project calls for it, we connect tools and data through MCP. On a knowledge platform for a pharmaceutical logistics Pharma logistics Pharma logistics is the term we use for storing, transporting and delivering medicinal products and other pharma-sector goods, such as promotional material and supplies for patients. Read in the glossary → client, our analysis software connects through an MCP server we built specifically for it, with a fixed set of eight tools. A large model plans the work, and a smaller one handles all communication with the platform through that server.
Where the term appears
See also
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AI agent
An AI agent is a software system, built on a large language model, that carries out actions on its own and uses interfaces to other programs to reach its goal.
E-commerce
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API
An API (application programming interface) is a defined set of functions and rules that lets one piece of software use the features or data of another system or service.
Cross-cutting
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Interface
An interface is the point at which two systems, programs or components meet and exchange data; the word also covers the user interface between a person and software.
Cross-cutting
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Business application
In general terms, a business application is software used to perform or support business functions.
Pharma
Sources
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Specification, Version 2026-07-28 (opens in a new tab)
Model Context Protocol (Projekt der LF Projects, LLC) accessed
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MCP joins the Agentic AI Foundation (9. Dezember 2025) (opens in a new tab)
Model Context Protocol Blog (offizielles Projektblog) accessed