PostgreSQL-backed virtual filesystem for AI agents with persistent, session-isolated storage.
PostgreSQL-backed virtual filesystem for AI agents with persistent, session-isolated storage.
Works with any MCP client: Claude Desktop, Claude Code, Cursor, Windsurf, Cline, and others.
pg_trgm extension — included in most distributions)Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
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 |
| mkdir | path |
| glob | pattern |
| grep | pattern, path_filter? |
| stores | *(none)* |
{
"mcpServers": {
"virtual-fs": {
"command": "npx",
"args": ["-y", "npm"],
"env": {
"DATABASE_URL": "your-value",
"VFS_AUTO_INIT": "your-value",
"VFS_SESSION_ID": "your-value",
"VFS_ENABLE_RLS": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
pg_trgm extension — included in most distributions)| Variable | Description | Required |
|---|---|---|
| DATABASE_URL | Endpoint or connection string the server talks to. | Yes |
| VFS_AUTO_INIT | Configuration value read at startup. | Optional |
| VFS_SESSION_ID | Configuration value read at startup. | Optional |
| VFS_ENABLE_RLS | Configuration value read at startup. | Optional |
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