Reference MCP servers
Model Context Protocol servers
Official reference MCP servers: Filesystem, Fetch, Git, Memory, Sequential Thinking, Time and Everything
Model Context Protocol
model context protocol develops core infrastructure for AI agents based on the mcp standard. their tools include official reference mcp servers for various functions, a server debugger with multiple interfaces, and plugins for building interactive mcp apps. they also provide utilities for managing and packaging mcp servers to streamline deployment and publishing.
MCP servers
Official
CLI tools
Editors’ pick
The official MCP server debugger: web UI, automation CLI and terminal UI in one package
The official MCP server registry and the mcp-publisher tool for publishing your own server
The .mcpb format and a CLI that package a local MCP server into one file installable in Claude Desktop with one click
Plugins
Editors’ pick
The official plugin with skills for building MCP Apps: interactive UIs on top of MCP tools that render inline in Claude