Holiday Calendar
U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.
likely compatible
Answered an MCP initialize with no credentials; use auth 'None'.
Rule R2a · what this means · Not tested in Copilot Studio.
| Registry name | com.modernmustardseed/holiday-calendar |
| Endpoint used for verdict | https://starter.modernmustardseed.com/holidays |
| Transports | streamable-http |
| Auth (Copilot Studio setting) | None (open) |
| Last endpoint check | 2026-10-20T18:11:59Z · initialize OK |
| GitHub | ModernMustardSeed/small-business-mcp-starter |
| Website | https://starter.modernmustardseed.com/docs/holidays |
| Version | 1.0.1 |
| Registry updated | 2026-10-12 |
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Is this wrong or out of date? Email us. Data built 2026-10-20.