Connect-MCP

Holiday Calendar

com.modernmustardseed/holiday-calendar · v1.0.1

U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.

MCPremoteno credentialsCalendar

Reported outcomes

No reports yet.

Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 5 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

A 100/100

What it does: 5 tools · 5 read, 0 write · Calendar

Test call next_federal_holidays: worked (1,025 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +10
  • Read/write annotations: +5
  • Safe test call: +20
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://starter.modernmustardseed.com/holidays

Tools

5 tools listed at last check
  • list_federal_holidays List the eleven U.S. federal holidays for one calendar year (2021 through 2100): each holiday's name, its actual date and weekday, the date it is observed when it falls on a weekend (Saturday moves to the Friday before, Sunday to the Monday after), and the rule that sets it, from 5 U.S.C. 6103. Use
  • next_federal_holidays Find the next one to eleven U.S. federal holidays observed on or after a date, with each one's observed date and how many calendar days away it is. Without from_date it starts from today's date in America/New_York and says which date it used.
  • check_business_day Check whether a date is a U.S. business day (a weekday that is not an observed federal holiday). Returns the weekday, the holiday observed that day if any, and the business days just before and just after it.
  • add_business_days Move a number of U.S. business days forward or backward from a date, skipping weekends and observed federal holidays, for due dates, delivery windows and notice periods. The start date is not counted: 1 business day after a Friday is the next Monday, or Tuesday when that Monday is a holiday. Returns
  • count_business_days Count the U.S. business days between two dates, both dates included, leaving out weekends and observed federal holidays. Returns the business day count, the weekend days, and each holiday that fell in the span. Spans up to 3,660 calendar days.

Badge

Connect-MCP badge for com.modernmustardseed/holiday-calendar

Markdown for your README
[![Connect-MCP](https://clawy.uk/mcp/badge/com.modernmustardseed/holiday-calendar.svg)](https://clawy.uk/mcp/s/com.modernmustardseed/holiday-calendar)

Repository · Website