Decoder. plain-English AI glossary

MCP

▲ Rising“em-see-pee”

Also called Model Context Protocol

A standard plug so any AI can talk to your tools and data without a custom integration each time.

Think of it like

USB-C for AI — one connector instead of a junk drawer of adapters.

Example

Point an assistant at an MCP server for your calendar and it can read your schedule with no bespoke code.

How it actually works

It defines how a model discovers tools, calls them, and gets results back. Boring plumbing on purpose — that boringness is what lets the whole agent ecosystem interoperate instead of everyone reinventing the same wiring.

For product teams

A standard that lets any AI plug into your tools without custom builds — faster integrations, less lock-in.

For engineers

An open protocol for tool/data discovery and invocation between a model host and external servers.

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