Workday Calendar

MCP server · hosted · v1.0.0 · dev.workers.regnotes.workday-calendar/workday-calendar

Online · tested 2h agoNEW · 4h agoSeen in the registry 3h ago

Public holidays and business-day math (T+N, counts) for many countries; pay per call via x402

What it does

Workday Calendar is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

From the publisher's description, Electra Index matched it to one capability: calendar management. That makes it a candidate for tasks such as plan a content calendar or book appointments online.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES

Local installNO

Live checkOnline · 4 tools

Version1.0.0

PriceNot in the registry

First seen25 Oct 2026

Last checked3h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)

Hosted endpoint

https://workday-calendar.regnotes.workers.dev/mcp streamable-http

In Claude Code: claude mcp add --transport http workday-calendar https://workday-calendar.regnotes.workers.dev/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "workday-calendar": {
      "url": "https://workday-calendar.regnotes.workers.dev/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 2h ago

ONLINE Workday Calendar answered an MCP connection on 25 Oct 2026 and introduced itself as workday-calendar 1.0.0 (MCP protocol 2025-06-18).

4 tools offered to AI assistants

business_day · Whether a date is a business day in a country (holiday/weekend/make-up workday aware), plus the previous and next business day. Costs $0.001 USDC on Base via x402.
business_days_add · Date that is N business days after (or before, if negative) a start date in a country. Typical use: T+2 settlement, SLA and filing deadlines. Costs $0.002 USDC on Base via x402.
business_days_count · Number of business days in [start, end] inclusive (max 3 years), with the holidays that fell on weekdays. Costs $0.002 USDC on Base via x402.
holidays · All national public holidays for a country and year, with weekend definition and official weekend make-up workdays. Costs $0.002 USDC on Base via x402.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Tasks it helps with

Share of each task's required capabilities it covers

Plan a content calendar Calendar Management	50%
Book appointments online Calendar Management	50%
Book travel Calendar Management	50%
Schedule meetings Calendar Management	50%

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Ready-made AI agents

An MCP server is a connector you add to your own assistant. These are finished products that do the same job for you:

Shortwave74
$30/mo
Motion48
$19/mo
Jasper87
$69/mo

Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Hosted endpoint	https://workday-calendar.regnotes.workers.dev/mcp	DECLARED	SRC-001 Official MCP Registry	3h ago
Local install (package)	no	DECLARED	SRC-001 Official MCP Registry	3h ago
Remote access (hosted)	yes	DECLARED	SRC-001 Official MCP Registry	3h ago
Website	https://workday-calendar.regnotes.workers.dev/	DECLARED	SRC-001 Official MCP Registry	3h ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	3h ago
Version	1.0.0	DECLARED	SRC-001 Official MCP Registry	3h ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	3h ago

Change history

NEW25 Oct 2026
first seen in the index

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Questions about Workday Calendar

How do I connect Workday Calendar?

Use the hosted endpoint https://workday-calendar.regnotes.workers.dev/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Workday Calendar offer?

When Electra Index connected on 25 Oct 2026, it listed 4 tools: business_day, business_days_add, business_days_count, holidays. The full list is in "Live check" above.

Is Workday Calendar online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.

What can I use Workday Calendar for?

Based on its description, it is most relevant to: plan a content calendar, book appointments online, book travel, schedule meetings.