MCP tool
check_business_day
Check whether a date is a U.S.
The check_business_day tool is provided by Holiday Calendar. Install that server in your AI client and the assistant can call it directly.
Servers exposing check_business_day
From the publisher: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.
Install Holiday Calendar →Parameter Type Description date*string The date to check, written YYYY-MM-DD (for example 2026-11-26). Covers 2021 through 2100.
Related tools
The same action under a namespaced name on other servers.
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