What is MCP (Model Context Protocol)?

what is MCP

Every tech bro nowadays is talking about MCP… surely you’ve heard about it at least once 🤔

But what exactly is this buzzword that’s taking over tech Twitter and conference panels?

I spent the last three weeks diving deep into MCP, building test implementations, and talking with developers actually using it. What I found is both exciting and surprising—MCP might be the most important AI advancement you’ve never heard of.

What Is MCP?

MCP stands for Model Context Protocol – but what does that actually mean in plain English?

It’s the technology that lets AI systems like Claude directly access and work with your stuff – your files, websites, databases, and other tools.

Before MCP, AI assistants were like smart people trapped in a soundproof box. They could hear your questions and give smart answers, but couldn’t actually touch or use anything in the digital world. They couldn’t open your files, search specific websites, or use the tools you work with every day.

MCP breaks that glass barrier. It creates secure “tunnels” that let AI systems:

  • Open and read your documents
  • Create and edit files on your computer
  • Search specific websites or databases
  • Run programs and analyze results

The “Context” in Model Context Protocol means the AI can understand the full situation – what files you’re working with, what tools are available, and what you’re trying to accomplish – instead of having a fragmented conversation with no memory or access.

How MCP Works For Non-Tech People

Last week, I showed MCP to my friend who runs a design agency. His reaction? “Wait, so the AI can actually SEE my files now?”

That’s exactly it.

Without getting lost in tech details, here’s what MCP does in plain language:

MCP creates a secure bridge between AI models and your actual stuff—files, apps, websites, databases. It’s like giving AI a set of hands to work with your digital tools instead of just talking about them.

The magic happens because MCP creates a standard language for AI to request access to things and for those things to respond. No more custom code for every single connection.

MCP vs Traditional APIs

Let me share what happened when I built a simple project management assistant:

Without MCP: I spent 3 days writing custom code to connect to Notion, GitHub, and our company database. When Notion updated their API, everything broke.

With MCP: I spent 2 hours setting up MCP servers, and the assistant could immediately access all three platforms. When updates happened, nothing broke.

Here’s how they compare:

FeatureTraditional APIsMCP
Setup timeDays/weeksHours
When tools updateEverything breaksKeeps working
Adding new toolsStart from scratchPlug and play
Security modelDifferent for each toolConsistent
Context awarenessNoneMaintains full context

The difference isn’t subtle—it’s transformative.

Key Benefits Of MCP For Users

“So what?” you might ask. “Why should I care about some backend protocol?”

Because MCP is the difference between:

  • AI that can talk about helping you analyze data
  • AI that can actually open your spreadsheet, run the analysis, and create a visualization

I’ve seen teams cut development time by 70% using MCP-enabled tools. The real benefits are:

  1. AI that can actually DO things instead of just suggesting them
  2. Seamless workflows where AI understands your entire context
  3. Faster results without constant uploading/downloading of files
  4. Less frustration when AI can directly access what it needs

Real-World MCP Applications

Last month, I watched a developer use Claude with MCP to:

  • Pull a repository from GitHub
  • Analyze the codebase
  • Find performance issues
  • Write fixes
  • Test them
  • Submit a pull request

All in a single conversation. No jumping between tools. No uploading files. No copying and pasting.

Other practical applications I’ve seen include:

  • Content teams having AI analyze their entire content library to find gaps
  • Researchers connecting AI to their citation databases for literature reviews
  • Marketers letting AI access analytics tools to build data-driven strategies

This isn’t future tech—it’s happening now.

MCP Technical Structure

For the technically curious, here’s the simple version of how MCP works:

  1. Clients (like Claude Desktop) connect to…
  2. Servers (specialized programs that access specific tools)
  3. Using a standard protocol (the language they speak to each other)

The beauty is in the simplicity. Each server does one job well—accessing files, querying a database, or interfacing with a specific tool.

When Claude needs something, it asks the right server through MCP, and that server handles the details.

MCP Setup Guide

Want to try MCP yourself? Here’s the quickest path:

  1. Download Claude Desktop – It has MCP built in
  2. Enable the filesystem server – This lets Claude read/write local files
  3. Ask Claude to help with file-based tasks – Try “Can you analyze this CSV file in my Downloads folder?”

For developers, the process is surprisingly simple:

# Install an MCP server (example: filesystem)

npm install -g @modelcontextprotocol/server-filesystem

# Run it (pointing to a directory you want to expose)

mcp-server-filesystem /path/to/your/projects

Then connect your LLM application to this server, and you’re set.

MCP And Manus: Different AI Approaches

While exploring MCP, I came across Manus, a Chinese AI system taking a completely different approach.

Instead of MCP’s distributed architecture, Manus uses what’s called “CodeAct”—a centralized planning system where the AI reasons through code rather than text.

The approaches reveal a fascinating philosophical divide:

  • MCP: Multiple specialized servers handling different tools
  • Manus: One central brain planning everything through code

Both approaches have merits. MCP’s standardization makes integration easier, while Manus’s centralized approach might provide more reliable execution for complex tasks.

It’s like the Mac vs. PC debate—different philosophies solving the same problem.

MCP Tools And Integrations

The MCP ecosystem is growing weekly. Here are tools I’ve personally tested:

  • Filesystem MCP: Access local files (works brilliantly)
  • GitHub MCP: Interact with repositories (mostly smooth)
  • SQLite MCP: Query databases (still a bit rough)
  • Google Drive MCP: Access cloud documents (works well)
  • Brave Search: Web search capabilities (very useful)

Each of these eliminates hours of custom coding and creates capabilities that were previously impossible in a single AI interface.

Common MCP Questions

When I talk about MCP with non-technical folks, these questions always come up:

“Can the AI access all my files now?”
No—you explicitly control which directories or resources each MCP server can access. Nothing happens without your permission.

“Is this only for programmers?”
Not at all. While developers implement MCP, the benefits are for everyone. Writers, researchers, analysts, and managers all benefit from AI that can actually access their tools.

“Does this replace APIs completely?”
No—MCP works alongside traditional APIs. It’s not a replacement but a standardized way to connect AI to those APIs.

“Which AI models support this?”
Currently, Claude is leading the charge, but the protocol is open for any AI system to implement.

MCP Use Cases By Industry

I’ve seen MCP implementations across several industries already:

IndustryMCP ApplicationReal Result
SoftwareCode analysis across repositories40% faster bug identification
MarketingContent analysis and generation3x more content variations tested
FinanceDocument analysis and data extraction65% reduction in manual review
ResearchLiterature review and synthesisWeeks of reading condensed to hours
LegalContract analysis and comparisonSpotted inconsistencies humans missed

The pattern is clear—MCP shines when AI needs to access multiple sources of information or tools to complete a task.

MCP Limitations To Know

Let’s be real—MCP isn’t perfect yet. In my testing, I’ve found these limitations:

  • Remote connections are still being developed (mostly local for now)
  • Authentication for secure services needs more work
  • Error handling can be frustrating when servers fail
  • Documentation is improving but still sparse in places

The good news? All these issues are being actively addressed as the ecosystem matures.

Mahad Kazmi

About Mahad

AI tools enthusiast and tech blogger.