## 🏗️ Core Architecture & Terminology
<img width="683" height="449" alt="image" src="https://github.com/user-attachments/assets/cf7ffa2c-3fd1-4d29-9cc5-19f509fe06c0" />

MCP system me **3 main components** hote hain:

| Component | Responsibility | Examples |
| --- | --- | --- |
| **MCP Host** | Wo AI application jo user se interact karti hai aur MCP connections ko initiate karti hai. | Claude Desktop, Cursor IDE, VS Code, AI Chatbots |
| **MCP Client** | MCP Host ke andar ka module jo MCP Server ke sath **1-to-1 connection** maintain karta hai. | Internal client connection protocol |
| **MCP Server** | Ek lightweight application jo specific capabilities, data, ya tools expose karti hai. | GitHub MCP Server, Postgres MCP Server, Brave Search Server |

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## 🧩 Key Building Blocks: Tools, Resources & Prompts

MCP Servers teen mukhya cheezein AI model ko provide karte hain:

* **Resources:** Read-only data sources jo context provide karte hain (e.g., local files, database records, API logs, system status).
* **Tools:** Actionable functions jo LLM execution ke waqt trigger kar sakta hai (e.g., *“Create a Github Issue”*, *“Send an Email”*, *“Run SQL Query”*).
* **Prompts:** Pre-defined templates ya workflows jo complex tasks ko repeatably trigger karte hain (e.g., code review workflow, database schema generator).

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## 🔄 How "Build, Connect, Deploy" Works

1. **Build:** Aap Python ya TypeScript/Node.js SDK ka use karke ek custom **MCP Server** banate hain jo aapke private API ya database se connect hota hai.
2. **Connect:** MCP Host (jaise Cursor ya Claude Desktop) ke configuration JSON file (`claude_desktop_config.json`) me aap apne MCP Server ka path ya command register karte hain.
3. **Deploy:** STDIO (local) ya SSE (Server-Sent Events / Remote over HTTP) transport channel ke zariye MCP Client aur Server aapas me secure communication karte hain.

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