What is MCP?
You keep hearing the letters MCP. This chapter explains what it is in plain language, why people are excited about it, and what it means for the way you work with Claude. No code, we promise.
The one-line version
MCP stands for Model Context Protocol. It is a single, open standard that lets Claude connect to the tools and information your team already uses. Instead of Claude only knowing what you paste into the chat, an MCP connection lets it read from, and act inside, the systems where your real work lives.
A quick analogy
Think of MCP as USB-C for AI. There was a time when every device had its own charger and its own cable, and nothing fit anything else. USB-C fixed that with one shared shape. MCP is the same idea for AI: one shared way to plug any tool into any assistant, so you stop building a custom adapter every single time.
So what is it, really?
A protocol is just an agreed way for two pieces of software to talk to each other, the same way a common language lets two people have a conversation. MCP defines that shared language between an AI assistant like Claude and an outside tool or data source.
The piece that speaks it on the tool side is called an MCP server: a small program that wraps a system, say Jira or SharePoint, and offers it up in the language Claude understands. Claude is the client, the side that connects and makes requests. The good news: someone has usually already built the server. You do not write code to use one, you simply connect to it, which is exactly what the next chapter walks through.
Why this matters for you
Before MCP, connecting an AI to each of your tools was a separate, custom job. Five tools meant five bespoke integrations to build and maintain. MCP turns that into one standard socket, so the same connection style works everywhere.
- Jira
- SharePoint
- Google Drive
- Databases
- Custom systems
What an MCP gives Claude
A connection can offer Claude three kinds of thing. You do not need to memorise these, but they help you picture what is possible.
Create a ticket, send a message, update a record.
Documents, issues, spreadsheets, records, files.
Shortcuts the tool suggests for common tasks.
A real example
Say your team runs on Jira. You connect the Jira MCP once. Now you can ask Claude, in plain English:
"Summarise the open bugs assigned to me, group them by priority, and draft a plan for tomorrow."
Claude reads your live issues through the connection, then answers with an accurate summary and a draft plan. You did not paste anything in. That is the shift MCP unlocks: Claude working with your real, current information instead of a stale copy.
You stay in control. A connection only does what you have allowed, and Claude asks before taking actions that change things. Connect read-only first if you want to watch it work before letting it write.