LocalFree

Virtual Filesystem MCP server

lu-zhengda/mcp-virtual-fs

PostgreSQL-backed virtual filesystem for agents: session isolation, shared stores, POSIX ops, RLS.

3 GitHub stars1 forks117 npm downloads / month
Source code

Install Virtual Filesystem in Claude Code

Claude Code
claude mcp add virtual-filesystem -e DATABASE_URL=... -- npx -y mcp-virtual-fs
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "virtual-filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-virtual-fs"
      ],
      "env": {
        "DATABASE_URL": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Virtual Filesystem MCP server do?

PostgreSQL-backed virtual filesystem for agents: session isolation, shared stores, POSIX ops, RLS.

Is the Virtual Filesystem MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Virtual Filesystem run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Virtual Filesystem to Claude Code?

Run: claude mcp add virtual-filesystem -e DATABASE_URL=... -- npx -y mcp-virtual-fs

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