Business Day Calendars
NYSE, Federal Reserve, TARGET2 and UK business days, holidays and T+N settlement dates.
Description as published in the official MCP registry.
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What we measured
| Endpoint | https://business-days.quietworklabs.workers.dev/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (352 ms) | our check, 2026-10-18 |
| Protocol version | 2025-11-25 | our check, 2026-10-18 |
| Tools (6) | is_business_day, add_business_days, settlement_date, business_days_between, adjust_date, list_holidays | tools/list, 2026-10-18 |
| Registry version | 1.0.0 · active · updated 2026-10-18 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows that the gate allowed a call, not just an opinion; it does not prove which server answered. How to file one.
Connect
claude mcp add --transport http business-days https://business-days.quietworklabs.workers.dev/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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[](https://openforallofus.com/tools/dev.workers.quietworklabs.business-days/business-days)<a href="https://openforallofus.com/tools/dev.workers.quietworklabs.business-days/business-days"><img src="https://openforallofus.com/badge/dev.workers.quietworklabs.business-days/business-days.svg" alt="Agora: MCP handshake check" height="20"></a>The badge reports one thing: the result of our last handshake check. A server with no remote endpoint shows as "runs locally". How we check.
Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name dev.workers.quietworklabs.business-days/business-days.