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title: "Part 3: Model Context Protocol (MCP): The Protocol That Powers AI Agents"
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title: "Part 3: Model Context Protocol (MCP): The protocol that powers AI Agents"
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date: 2025-07-18T14:23:55.595Z
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author: Dinesh R Singh
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As AI agents grow beyond text generation into autonomous problem-solvers, a new challenge emerges — communication. Not between humans and AI, but between AI and the vast world of services, APIs, databases, and tools. That’s where **MCP (Model Context Protocol)** steps in.
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As AI agents grow beyond text generation into autonomous problem-solvers, a new challenge emerges — communication. Not between humans and AI, but between AI and the vast world of services, APIs, databases, and tools. That’s where **Model Context Protocol (MCP)** steps in.
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Inspired by [my post on medium](https://dineshr1493.medium.com/all-you-need-to-know-about-the-evolution-of-generative-ai-to-agentic-ai-part-3-mcp-model-context-f026578ff0dd), this blog demystifies the MCP standard — reinterpreted with clarity, depth, and real-world relevance to help you understand how AI agents actually get things done.
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If LLMs are the brains, MCP is the nervous system connecting them to the real world. Let’s unpack how this protocol makes agentic AI functional, contextual, and enterprise-ready.
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## Real-World applications of MCP
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1.**Faster Integrations**
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4.**Cross-Agent Compatibility**
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Build a tool once, and any MCP-compliant agent can use it. No more agent-specific wrappers.
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### **Case Study: Qdrant with MCP**
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**Qdrant** is a vector database used for semantic search. Here’s how it operates under MCP:
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* MCP Server exposes a tool like semantic_search(query: str)
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This is vector search integrated into an agentic loop — not just storage, but intelligence.
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### Case Study: PostgreSQL with MCP
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A **Postgres MCP Server** might expose methods such as:
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* get_sales(region: str, quarter: str)
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MCP is more than a technical standard — it's a **philosophy of interoperability** for the agentic era. It shifts AI from being a passive responder to an active participant in real-world systems. With MCP, agents don’t just have the ability to talk — they gain the **power to think, act, adapt, and connect** meaningfully.
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As we continue this series, [the next chapter](https://developer.hpe.com/blog/part-3-the-rise-of-agentic-ai-and-the-power-of-the-agno-framework/) will spotlight a top Agentic AI framework and reveal how it uses MCP to orchestrate intelligent, autonomous workflows across environments.
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As we continue this series, the next chapter will spotlight a top Agentic AI framework and reveal how it uses MCP to orchestrate intelligent, autonomous workflows across environments.
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> ####
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> If you’re building with AI — or planning to — MCP is the connective tissue you can’t afford to ignore
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> If you’re building with AI — or planning to — MCP is the connective tissue you can’t afford to ignore.
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