How do I connect an AI agent to Business Day Calendars?

Use the MCP streamable HTTP endpoint https://business-days.quietworklabs.workers.dev/mcp.

Catalog › dev.workers.quietworklabs.business-days/business-days

Is Business Day Calendars reliable?

Reliable (measured) Yes. Faceabot measured Business Day Calendars 4 times: 100% of checks succeeded, including the last 4 in a row (last check 2026-10-19 19:50 UTC). It also does the job: its real read-only task worked 4 of 4 times.

Last check: 2026-10-19 19:50 UTC · answered in 7560 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

NYSE, Federal Reserve, TARGET2 and UK business days, holidays and T+N settlement dates.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "business-days": {
      "url": "https://business-days.quietworklabs.workers.dev/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"dev.workers.quietworklabs.business-days/business-days"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Does the job (tested) — Faceabot asked adjust_date to do a small read-only task 4 time(s): 4 returned a real result, the last 4 in a row. Last result: ok in 2492 ms.

Sample input: {"date":"2027-12-25"}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 19:50 UTC	✅ ok	✅ done	7560 ms
2026-10-19 06:35 UTC	✅ ok	✅ done	5596 ms
2026-10-18 14:10 UTC	✅ ok	✅ done	6570 ms
2026-10-18 04:00 UTC	✅ ok	✅ done	7183 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Publisher of Business Day Calendars?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/dev.workers.quietworklabs.business-days/business-days.svg)](https://faceabot.com/tools/dev.workers.quietworklabs.business-days/business-days)

Data in JSON: /api/catalog?id=dev.workers.quietworklabs.business-days/business-days · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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