# MCP server

An MCP server is a service that exposes tools and data to AI assistants through the Model Context Protocol.

A remote MCP server runs on the web and is connected by URL with OAuth sign-in. A fitness MCP server turns your training data into tools; read-write servers can also log and plan.

Related: [MCP](https://revns.com/dictionary/mcp.md), [OAuth](https://revns.com/dictionary/oauth.md)

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Canonical: https://revns.com/dictionary/mcp-server
Index of everything: https://revns.com/llms.txt
revns gives training guidance, not medical advice.