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SOFTWARE ARCHITECTURE

What Is Model Context Protocol (MCP)?

MCP is to AI tools what USB was to computer peripherals — a standard connector that makes any AI work with any tool without custom glue code.

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The Integration Problem Before MCP

Every AI tool integration required custom code: specific API clients, custom authentication, bespoke data formatting. Connecting Claude to your database required different code than connecting GPT-4 to the same database. This fragmentation slowed development.

What MCP Does

Model Context Protocol (MCP), open-sourced by Anthropic in late 2024, defines a standard interface for AI models to connect to external data sources, APIs, and tools.

An MCP server exposes resources (data), tools (actions), and prompts through a standardised protocol. Any MCP-compatible AI client can connect to any MCP server without custom integration code.

Architecture

MCP Host: The AI application (Claude Desktop, your app) MCP Server: The tool or data source exposing capabilities Your database → MCP Server → Claude Your filesystem → MCP Server → Claude Your CRM → MCP Server → Claude

Why It Matters for Builders

Build your integration once as an MCP server. Any MCP-compatible AI can then use it. For enterprises: build internal MCP servers for your systems and unlock them for any AI tool your team uses, with centralised access control.

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Share or cite this guide

Ajay Prajapat (2025-04-08). What Is Model Context Protocol (MCP)?. https://innovatewithajay.com/blogs/what-is-model-context-protocol

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