Short answer
MCP (Model Context Protocol) is a shared standard for connecting AI apps to other services such as Google Drive, Notion and your calendar. The official documentation compares it to a USB-C port for AI: instead of a different plug for every device, one kind of plug works everywhere. You may already be using it without knowing the name, under a menu called "connectors" or "integrations."
Why does it exist?
By default, an AI does not know your documents or your schedule. If you ask it to "summarize my plans for next week," it cannot see your calendar, so it has nothing to go on. You could copy and paste everything in, but that gets tedious.
Connecting an app to an AI used to mean building a separate link for each service. MCP standardizes that link. According to the official MCP site, AI apps and developer tools including Claude and ChatGPT support it. Build the connection once and it can work across several AI apps.
The official introduction gives this kind of example: an AI that can reach your Google Calendar and Notion and acts more like a personal assistant.
What does it look like for everyday users?
The word "MCP" hardly appears on screen. In Claude it shows up as "connectors." Anthropic's help pages describe a connector as a feature that links Claude to external apps and services such as calendars, documents and issue trackers. Once connected, Claude can look up information and take actions in that service.
In Claude, the flow goes roughly like this. Menu names can change with updates, so treat it as a guide.
- Open the s list inside Customize in settings.
- Search for the service you want and choose "Connect to Claude."
- The service's own sign-in page opens. Sign in, read what access you are giving Claude, and approve it.
- Turn the connector on from the "+" menu in the chat box, and Claude can use it in that conversation. You can switch it on and off per conversation.
Check my calendar for tomorrow afternoon and tell me if any meetings overlap. Only look. Do not change anything.
Saying what not to do, like "only look," keeps things safer.
What changes once you connect something?
Which connections are supported, and on which plans, keeps changing. The table shows the kinds of jobs possible. To see what your own account can use, check the connector list in the app.
Some connectors are built by the service itself and others by outside developers. Anthropic's connector directory marks each entry as Verified or Community, so look at which label an entry has before you pick it.
| Connected service | What you can hand off (examples) |
|---|---|
| Google Drive and Docs | Find documents in a specific folder and summarize them |
| Calendar | Tell you tomorrow's schedule, find free time |
| Note apps like Notion | Find meeting notes and pull out a to-do list |
| Find specific messages in your inbox |
What to watch out for
A connector opens part of your account to an AI. The convenience comes with a few rules.
- Connect only what you need, and disconnect what you no longer use. In Claude you can use Disconnect or Remove on the connector page.
- Read what access the sign-in screen asks for. If a tool that only needs to read is asking to write and delete too, stop and think.
- Adjust permissions per tool. Claude lets you set each tool to Always allow, Needs approval or Blocked. Starting with "Needs approval" is safer.
- For work accounts, check company policy first. On team and enterprise plans, administrators decide which connectors are allowed.
- Do not connect something from an unknown source. Entering an app address (URL) yourself means whoever runs that address will handle your information.
What developers mean by MCP
When developers talk about an , they mean a small program built to connect an app to an AI. Everyday users rarely build or install one. For how it works in the coding tool Claude Code, see the developer version of this topic on this site.
Related terms
- Connector
- The name Claude uses for connecting outside apps. Under the hood it uses the MCP standard.
- MCP server
- A program that links an app to an AI. Everyday users seldom deal with one directly.
- Open protocol
- A communication standard published for anyone to use, not owned by one company.
FAQ
Do I need to know how to code to use MCP?
Not to use the connectors in a directory. You pick a service, sign in and approve. You only need development skills if you build one yourself.
Is MCP only for Claude?
No. It is an open standard, and the official MCP site lists AI apps and developer tools including Claude and ChatGPT as supporters. Names and the level of support differ by app.
Does connecting a service let the AI learn from my documents?
That depends on each service's data policy. Before connecting, check the privacy settings and policy of the AI service you use. The privacy settings article explains how.
What happens when I disconnect?
In Claude, choosing Disconnect signs you out of the service so Claude can no longer reach it. The entry stays in your list so you can sign in again later. Choosing Remove deletes it from your account.
Keep going
Checked against sources on 2026-10-30. Sources: Model Context Protocol, What is MCP?, Claude, Get started with connectors, Anthropic, Glossary (MCP). How we write