Virtual Filesystem

About Virtual Filesystem

Use Virtual Filesystem with your agent

claude mcp add virtual-filesystem -- npx -y mcp-virtual-fs

{
  "mcpServers": {
    "virtual-filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-virtual-fs"
      ]
    }
  }
}

Frequently asked questions

What is Virtual Filesystem?

Virtual Filesystem is an MCP (Model Context Protocol) server by lu-zhengda in the Databases category. PostgreSQL-backed virtual filesystem for agents: session isolation, shared stores, POSIX ops, RLS.

How do I connect Virtual Filesystem to Claude, Cursor, or another MCP client?

Install Virtual Filesystem from its npm package (mcp-virtual-fs) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is Virtual Filesystem open source?

Yes — the source code is public at github.com/lu-zhengda/mcp-virtual-fs, with 2 GitHub stars.

Can AI agents pay to use Virtual Filesystem?

Not yet through Loomal — Virtual Filesystem is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.