cronmcp

Overview

cronmcp is a TypeScript-based MCP server that implements cron scheduling functionality as MCP tools. It allows users to create, update, and remove scheduled prompt jobs using standard cron expressions. The server persists jobs locally in JSONL format and can optionally emit notifications through MCP's experimental channel feature. Built on established packages like cron and commander, it provides a straightforward way to integrate scheduled task execution into MCP-compatible applications.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• cron_list_jobs

  List all scheduled cron jobs

  Try:Show me all scheduled cron jobsTry:What jobs are currently scheduled?
• cron_add_job

  Add a new cron job with schedule and prompt

  Try:Add a job that runs every hourTry:Schedule a prompt to check queue depth every 5 minutes
• cron_update_job

  Update an existing cron job's schedule or prompt

  Try:Change the schedule of job 123 to every 10 minutesTry:Update the prompt for job abc to 'Check system status'
• cron_remove_job

  Remove a scheduled cron job

  Try:Remove job 123Try:Delete the cron job that runs every hour

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Installation

npx cronmcp mcp

npm install
npm run build
npm run dev -- mcp

{
  "mcpServers": {
    "cron": {
      "command": "npx",
      "args": ["cronmcp", "mcp"]
    }
  }
}

FAQ

How does cronmcp persist scheduled jobs?

Jobs are persisted in JSONL format under ~/.cronmcp/crontab. Each job record contains its ID, schedule, prompt, and creation timestamp.

Can cronmcp emit notifications for scheduled events?

Yes, when started with the --channels flag, the server can emit scheduled tick events through MCP's experimental notification channel feature.

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