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MCP Masterclass Glossary

Welcome to the MCP Masterclass glossary, your guide to key concepts in declarative video creation, software education, and coding tutorial development.

H

Host

The LLM application (like Claude Desktop or IDEs) that initiates connections to MCP servers and manages the overall user experience.

M

MCP Client

The translator that turns an LLM’s tool requests into valid MCP JSON calls and streams results back into the model’s context.

MCP Server

A lightweight program that exposes specific capabilities through the standardized Model Context Protocol to provide context, tools, and prompts to LLMs.

R

Resources

Data and content that MCP servers expose to clients for use as context in LLM interactions, including files, database records, API responses, and live system data.

T

Tools

Executable functions that MCP servers expose to clients, enabling LLMs to perform actions, interact with external systems, and modify state in the real world.

Transport

The communication layer that handles message exchange between MCP clients and servers, supporting stdio and HTTP protocols with JSON-RPC formatting.

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