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mcp/harbor
Grok

cron for Grok

io.github.ryudi84/cron

MCP server for cron expression parsing, validation, and scheduling.

client:Grok transport:stdio runtime:npm

Install cron in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "cron": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "cron-forge-mcp"
      ]
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

cron in other clients

cron MCP server