Ruby server implementing Model Context Protocol (MCP) for filesystem operations using the [vector_mcp](https://rubygems.org/gems/vector_mcp) gem.
If you already use File System MCP, the file system mcp mcp server is the piece that lets your assistant work with it directly. Ruby server implementing Model Context Protocol (MCP) for filesystem operations using the vector_mcp gem.
Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
Configuration is passed through the environment: FILESYSTEM_MCP_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the file and storage access options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. It is maintained by sergiobayona; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
{
"mcpServers": {
"filesystem": {
"command": "ruby",
"args": [
"/path/to/file_system_mcp.rb",
"~/Documents",
"~/Desktop"
]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| FILESYSTEM_MCP_API_KEY | Credential the server authenticates with. | Yes |
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