MCP server

Workday Calendar

dev.workers.regnotes.workday-calendar/workday-calendar

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

4

Token cost

About 514 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.workday-calendar]
url = "https://workday-calendar.regnotes.workers.dev/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"workday-calendar":{"type":"http","url":"https://workday-calendar.regnotes.workers.dev/mcp"}}}

Antigravity

agy mcp add workday-calendar https://workday-calendar.regnotes.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"workday-calendar","server_url":"https://workday-calendar.regnotes.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"workday-calendar","server_url":"https://workday-calendar.regnotes.workers.dev/mcp"}

Tools

• business_day ~120 tokens
  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 ~148 tokens
  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 ~132 tokens
  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 ~114 tokens
  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.

Browse

• Calendars

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• Reference Data
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• Reference Data
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• Reference Data
  LatAm govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 22 countries; Brazil free.

Badge for your README

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