MCP Reference Servers

The official collection of Model Context Protocol (MCP) reference servers maintained by Anthropic and the MCP community. Drop any of these servers into your agent stack to instantly grant it structured, safe access to local files, git repositories, the web, long-term memory, and databases.

Key features

• Filesystem server — read/write files and directories with path-scoped permissions
• Git server — inspect commits, diffs, branches, and logs
• Fetch server — make HTTP requests from inside a sandboxed tool call
• Memory server — persistent key-value store across agent sessions
• SQLite, Postgres, and more — query databases via natural-language tool calls
• All servers implement the open MCP spec, so they work with Claude, Cursor, Zed, and any MCP client

Quick start

# Install via ai-supply
npx ai-supply add mcp-reference-servers

# Or run a specific server directly with npx (no install required)
npx @modelcontextprotocol/server-filesystem /path/to/allowed/dir
npx @modelcontextprotocol/server-git --repository /path/to/repo
npx @modelcontextprotocol/server-fetch

Add the servers to your Claude Desktop config:

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

Curated mirror of the open-source MCP Reference Servers project (MIT/Apache-2.0). Install upstream from the repository.