MCP ConfigsMar 29, 2026·2 min read

MCP Reference Servers — Official Collection

Official MCP reference server implementations by Anthropic: filesystem, git, memory, fetch, sequential thinking, and more. The starting point for MCP development.

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Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

Install any reference server via npm/npx. Example for the filesystem server:

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path/to/allowed/dir"]
    }
  }
}

Browse all servers at the MCP Registry.


Intro

The official collection of MCP (Model Context Protocol) reference server implementations, maintained by Anthropic's MCP steering group. These are the canonical examples for building MCP servers — each demonstrates specific protocol features with production-quality code. 82,000+ GitHub stars. SDKs available for 10 languages.


Active Reference Servers

Server Description Install
Everything Comprehensive test server with prompts, resources, and tools @modelcontextprotocol/server-everything
Fetch Web content retrieval optimized for LLM consumption @modelcontextprotocol/server-fetch
Filesystem Secure file operations with configurable access controls @modelcontextprotocol/server-filesystem
Git Repository reading, searching, and manipulation @modelcontextprotocol/server-git
Memory Knowledge graph-based persistent memory system @modelcontextprotocol/server-memory
Sequential Thinking Dynamic problem-solving through thought sequences @modelcontextprotocol/server-sequential-thinking
Time Time and timezone conversion @modelcontextprotocol/server-time

Official SDKs

Build your own MCP servers in any of these languages:

  • TypeScript / Python / Rust / Go / Java / Kotlin / C# / Ruby / Swift / PHP

Configuration Examples

Filesystem server (read/write access)

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "/Users/me/projects"]
    }
  }
}

Git server

{
  "mcpServers": {
    "git": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-git"]
    }
  }
}

Memory server (persistent knowledge graph)

{
  "mcpServers": {
    "memory": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-memory"]
    }
  }
}

Archived Servers (moved to separate repo)

Previously included: AWS KB Retrieval, Brave Search, GitHub, GitLab, Google Drive, Google Maps, PostgreSQL, Puppeteer, Redis, Sentry, Slack, SQLite. These are now in servers-archived.


Source & Thanks

Author: modelcontextprotocol (Anthropic) Repository: servers — ⭐ 82,300+ License: Mixed (per server) Registry: registry.modelcontextprotocol.io

The canonical starting point for MCP server development, maintained by Anthropic's MCP team.

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