An MCP server that provides AI agents with a persistent, PostgreSQL-backed virtual filesystem. Supports session-isolated file operations, cross-session shared stores, glob/grep search, and Row Level…
Virtual Filesystem is an MCP project maintained in the lu-zhengda/mcp-virtual-fs repository. The maintainer describes its purpose as “An MCP server that provides AI agents with a persistent, PostgreSQL-backed virtual filesystem. Supports session-isolated file operations, cross-session shared stores, glob/grep search, and Row Level…”. Read the project documentation for the complete scope.
The documented npm package is mcp-virtual-fs. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares DATABASE_URL, VFS_AUTO_INIT. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| read | path |
| write | path, content |
| append | path, content |
| stat | path |
| ls | path |
| mkdir | path |
| rm | path |
| mv | source, destination |
| glob | pattern |
| grep | pattern, path_filter? |
| stores | (none) |
{
"mcpServers": {
"virtual-fs": {
"command": "npx",
"args": [
"-y",
"mcp-virtual-fs"
],
"env": {
"DATABASE_URL": "postgresql://postgres:postgres@localhost:5432/vfs",
"VFS_AUTO_INIT": "true"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| DATABASE_URL | Declared in the maintainer’s client configuration. | Yes |
| VFS_AUTO_INIT | Declared in the maintainer’s client configuration. | Optional |
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