Glossary
What is an MCP server?
An MCP (Model Context Protocol) server is a small program that gives an AI coding agent like Claude Code, Codex, or Cursor a new capability - a tool, data source, or action it can call directly. Instead of copy-pasting context, the agent connects to the server and uses its tools live, over a standard protocol.
Skillselion catalogs 8,439 MCP servers, ranked by real install counts.