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Grok

Business Days and Holidays for Grok

app.openkrill/business-days

Count working days between two dates, add business days to a date, or list public holidays.

client:Grok transport:streamable-http tools:6

Install Business Days and Holidays in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "business-days": {
      "type": "http",
      "url": "https://businessdays.openkrill.app/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

What Grok can do once it is connected

Business Days and Holidays in other clients