MCP Server

Technical terms
About 1 min read

A connection server that provides a standardized pathway for AI models to access external data sources such as local files, databases, and SaaS tools.

Also known as
Model Context Protocol ServerMCP Connector

Detailed explanation

A server that implements the Model Context Protocol (MCP), an open standard announced by Anthropic. Previously, developers had to build separate APIs for each AI tool to integrate external data. By using an MCP server, they can build the integration once according to the standard specification and immediately query data and execute tools across various AI clients (such as Claude Desktop). This acts as core infrastructure to extend the AI's 'context' with real-time external data.

Why it matters in tool selection

It determines whether AI tools can connect directly to a user's actual work environment (GitHub, Slack, databases, etc.) beyond relying on static knowledge. Choosing an AI tool that supports the MCP server ecosystem allows users to immediately expand functionality by leveraging numerous existing open-source MCP servers, without the need for complex custom development.

What to look for

  • Does the chosen AI tool support MCP client functionality?
  • Is an MCP server for the external service you need to integrate already available as open source?
  • Can you host the MCP server directly within your local environment for data security?

Example

If you install the Google Drive MCP server locally, you can search for specific files in your drive directly from the AI chat window and instruct it to write a report based on their content.

Comparison of Integration Methods

MCP Server Method

Once built according to standard specifications, it can be reused across multiple supporting AI clients, minimizing additional work even as integration targets increase.

Direct Custom API Integration

Requires building separate integration code for each tool, which rapidly increases development and maintenance overhead as the number of connected services and clients grows.

Related terms

Function CallingAI AgentAPILangChain