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Introduction to Model Context Protocol (MCP)

The Model Context Protocol (MCP) is an open standard designed to streamline the integration of AI models with various data sources and tools. It acts as a universal connector, much like a USB-C port, allowing seamless communication between AI applications and their required resources.

Why Use MCP?​

MCP is essential for building sophisticated AI agents and workflows, particularly when leveraging large language models (LLMs). It offers:

  • Pre-built Integrations: A wide array of integrations that can be directly utilized by LLMs.
  • Flexibility: The ability to switch between different LLM providers and vendors without hassle.
  • Security: Best practices for safeguarding your data within your infrastructure.

Core Architecture​

MCP operates on a client-server model, where:

  • MCP Hosts: Applications like IDEs or AI tools that need data access.
  • MCP Clients: Protocol clients that maintain direct connections with servers.
  • MCP Servers: Lightweight programs that expose specific capabilities through MCP.
  • Local and Remote Data Sources: Secure access to local files, databases, and external systems via APIs.

Local vs. Remote MCP Servers​

Local MCP Servers:
Traditionally, MCP servers have operated directly on your personal machine. This local setup is excellent for developers and power users who want immediate control for testing and experimentation. However, local servers are tied to a single device or network, which limits accessibility and collaboration across various environments.

Remote MCP Servers:
Remote MCP servers bring the power of MCP to the masses by hosting the server on the Internet. This approach allows users to log in and authorize MCP clients with familiar, secure authentication flows. Similar to the transition from desktop software to cloud-based applications, remote MCP servers enable AI agents to go beyond simple inference tasks—empowering them to execute actions like sending emails, deploying code changes, or publishing content. This connectivity opens up MCP to a wider audience, including everyday consumers, and supports web-based interfaces and mobile applications without the need for local installation.

Getting Started​

Whether you're developing servers or clients, MCP provides a structured path to get started, with quick start guides and examples to help you build and integrate your own solutions.