Glossary · Updated Sep 2, 2026

Model Context Protocol (MCP)

An open standard for connecting AI assistants and agents to tools and data sources through a common interface.

Definition

MCP defines how a client such as a coding assistant or chat app discovers and calls tools exposed by servers, which can wrap databases, SaaS APIs, file systems, or internal services. Because it is a shared protocol, one integration can serve many assistants. Adoption spans coding tools, desktop assistants, and automation platforms.

Why it matters when choosing a tool

Choosing tools that speak MCP reduces lock-in and lets you reuse integrations across assistants and agents.

Where you will meet it

AI Coding & Development, AI Agent & Chatbot Builders, AI Automation & Workflows

Related terms

Tool use (function calling) · AI agent · API access

Tools where this matters

Reviewed products in the related categories