Holiday Calendar
mcp remote · streamable-http · v1.0.1 · source: crawl
https://starter.modernmustardseed.com/holidays
https://github.com/ModernMustardSeed/small-business-mcp-starter
U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.
Works
100
Verified Oct 31, 2026 · p50 260 ms · p95 297 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'Holiday Calendar (example) by Modern Mustard Seed' |
| tools_listed | 15 | pass | 5 tools |
| schema_complete | 15 | pass | 5 of 5 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 260 ms |
| latency_p95 | 5 | pass | p95 297 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (5)
| Name | Description | Schema |
|---|---|---|
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 | typed |
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 Ame | typed |
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 a | typed |
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: | typed |
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 | typed |
Badge
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[](https://app.agent-xm.com/a/com-modernmustardseed-holiday-calendar)
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