Model Context Protocol
Also called MCP.
Model ContextContext is the information available to an AI model for a particular response, including instructions, conversation, and supplied material. Protocol is an open standard that lets AI applications connect to external tools and information through compatible servers.
Example
An AI app speaks MCP to a server that exposes a task list. The app can request the list because both sides use the protocol, not because the words APIAn application programming interface, or API, is a defined way for software to request data or actions from other software. and MCP are interchangeable.
Why it matters
MCP is a specific protocol. An APIAn application programming interface, or API, is a defined way for software to request data or actions from other software. is any software contract. A connectorA connector is a ready-made connection that lets an application use another service's data or actions. is a product's ready-made connection. They can work together, and they are not three names for one thing.
Common confusion
MCP is not a synonym for APIAn application programming interface, or API, is a defined way for software to request data or actions from other software., pluginA plugin is an optional piece of software that adds a feature to a larger application., or connectorA connector is a ready-made connection that lets an application use another service's data or actions.. It is one standard for hooking tools up to AI applications.
Sources
Updated September 30, 2026.