MCP Crontab Explorer MCP Server

A MCP Server exposing tools for fetching entries and viewing logs

Local serverstdioPython

What is the MCP Crontab Explorer MCP server?

MCP Crontab Explorer MCP server exists for a simple reason — assistants are far more useful when they can act on MCP Crontab Explorer directly instead of describing what you should do. A MCP Server exposing tools for fetching entries and viewing logs.

What you get

An MCP server for exploring, explaining, and managing crontab entries. Works with Claude Desktop, Claude Code, and any MCP client.

Setting it up

Installation goes through your MCP client rather than a global install: point it at mcp-crontab-server on PyPI and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.

What the assistant can call

Once MCP Crontab Explorer is connected, these are the calls the assistant has available:

  • list_crontab — List all crontab entries for the current user
  • search_crontab — Search entries by keyword (case-insensitive)
  • get_cron_logs — Recent cron execution logs (journalctl / syslog)
  • explain_cron_expression — Explain a cron expression in plain English
  • next_runs — Calculate the next N execution times
  • validate_cron_expression — Check if an expression is syntactically valid
  • add_cron_entry — Add a new entry to the user's crontab
  • remove_cron_entry — Remove entries matching a pattern

Configuration and credentials

  • Python 3.10+ - Linux/macOS (uses crontab command) - fastmcp>=2.0.0, croniter>=1.0.0

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the mcp crontab explorer mcp server does with a few real requests.

Choosing this one

Among the monitoring and observability 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. MCP Crontab Explorer's toolset — list_crontab, search_crontab, get_cron_logs and 5 more — is a fair guide to whether it matches your workflow. It is maintained by jasona7; 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.

Available tools

ToolWhat it does
list_crontabList all crontab entries for the current user
search_crontabSearch entries by keyword (case-insensitive)
get_cron_logsRecent cron execution logs (journalctl / syslog)
explain_cron_expressionExplain a cron expression in plain English
next_runsCalculate the next N execution times
validate_cron_expressionCheck if an expression is syntactically valid
add_cron_entryAdd a new entry to the user's crontab
remove_cron_entryRemove entries matching a pattern

How to install the MCP Crontab Explorer MCP server

{
  "mcpServers": {
    "crontab": {
      "command": "uvx",
      "args": ["mcp-crontab-server"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Python 3.10+ - Linux/macOS (uses crontab command) - fastmcp>=2.0.0, croniter>=1.0.0

Example prompts to try

  • Use MCP Crontab Explorer to list crontab.
  • Use MCP Crontab Explorer to search crontab.
  • Use MCP Crontab Explorer to get cron logs.

Frequently asked questions

Python 3.10+, Linux/macOS (requires the `crontab` command), and the packages `fastmcp>=2.0.0` and `croniter>=1.0.0`.