Quick Start
Add to your Claude Desktop config.
- Basic setup
{
"mcpServers": {
"fast-filesystem": {
"command": "npx",
"args": ["-y", "fast-filesystem-mcp"]
}
}
}- With backup files enabled
{
"mcpServers": {
"fast-filesystem": {
"command": "npx",
"args": ["-y", "fast-filesystem-mcp"],
"env": {
"CREATE_BACKUP_FILES": "true"
}
}
}
}Backup Configuration
Control backup file creation behavior.
CREATE_BACKUP_FILES=false(default): Disables backup file creation to reduce clutterCREATE_BACKUP_FILES=true: Creates backup files before modifications
Note: Backup files are created with timestamps (e.g., file.txt.backup.1755485284402) to prevent data loss during edits.
Debug and Logging Configuration
The MCP server uses a safe logging system that prevents JSON-RPC communication errors.
