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Glossary / LLM APIs and AI

Glossary · LLM APIs and AI · checked Oct 24, 2026

MCP (Model Context Protocol)

Short answerMCP is an open protocol, introduced by Anthropic in November 2024, for connecting AI apps to tools and data: a server exposes tools and resources, and any MCP client (Claude, IDEs, agents) can call them.

Why it matters

Write a tool once as an MCP server and every compatible assistant can use it, instead of one plugin per app.

Our number

We run our own MCP servers on this machine (an agent harness and a machine-knowledge service), and our open-source Rust crates include MCP integrations.

Up next

Go deeperOur open-source cratesThe page on this site that does the most with this term.Read it next →

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