In plain English
MCP is an open standard that lets AI apps connect to tools and data in one common way. A host runs a client that talks to servers offering tools, resources and prompts. It turns many custom links into one plug. Trust servers carefully, give least access and require approval for risky actions.
- MCP server
- A small program that offers tools or data through MCP.
- Tool
- An action a model can ask a server to run.
- Least access
- Only the permissions the job needs.
Picture it
Before and after a standard
Custom links
Every app and tool pair is built by hand
One standard plug
Tools speak MCP, apps speak MCP
Mix and match
Swap tools or apps without rebuilding