You keep hearing about AI agents. But an agent that can only chat is like a brilliant assistant with no hands. It can advise you all day — it just cannot open your inbox, check your calendar, or post to your store.
MCP changes that. MCP stands for Model Context Protocol. It is an open standard, launched by Anthropic in November 2024, that lets AI agents connect to your apps in one standard way.
The USB-C comparison
Before USB-C, every device had its own charger. MCP does for AI what USB-C did for cables: one common plug between an agent and the outside world. An app exposes an MCP server. Any MCP-ready agent — Claude, ChatGPT, Muse, Hermes Agent, Cursor — can plug into it and use it.
What does that look like in real life?
- You ask: “Which customer enquiries came in today, and draft replies to the urgent ones?”
- Your agent checks your email tool, reads the messages, and drafts the replies — because email is connected through MCP.
- Tomorrow you connect your calendar the same way, and the same agent can now book around your real schedule.
No new software to learn. No code for you to write. Each connection is added once, and your agent simply gets more capable.
Why everyone adopted it
OpenAI added MCP support in 2025. Google and Microsoft followed. In December 2025, Anthropic donated MCP to the Agentic AI Foundation under the Linux Foundation — the same kind of neutral home that looks after other major open standards. There are now more than 10,000 public MCP servers, covering everything from Gmail and Notion to GitHub, Stripe and WordPress.
In short: MCP is the standard way agents reach your tools. If you are going to use an AI agent seriously this year, MCP is how it will connect.
Want this set up for your apps? That is exactly what we do at AgentMCP — see the homepage for our setup service.