ProductivityMCP Registryremote4 toolsD · 33

Workday Calendar MCP server

dev.workers.regnotes.workday-calendar · Updated 4d ago

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

At a glance

Workday Calendar is an MCP server in the Productivity category. It is hosted remotely and connects over HTTP, and declares no required credentials. It exposes 4 tools, including business_day, business_days_add and business_days_count. It scores D (33/100) on the MCP Skills Hub health score as of Oct 28, 2026.

Source

One-click install

VS Code VS Code Insiders Cursor

Opens your editor and pre-fills the config. Your editor will ask before adding it.

How to install Workday Calendar in your AI client

Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.

How to install Workday Calendar in Claude CodeAnthropic's agentic CLI

Add the server

bash

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

2
Verify it's connected
bash
```
claude mcp list
```
Sharing it with your team?
Add `--scope project` to write it to .mcp.json in the repository root, which you can commit (with the secrets left as environment variables).
Use it in a session
Ask Claude to use the tools this server exposes (e.g. business_day, business_days_add, business_days_count). It discovers them automatically.

How to install Workday Calendar in Claude DesktopDesktop app (MCP config)

Open your MCP config
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

Add this server

json

{
  "mcpServers": {
    "workday-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://workday-calendar.regnotes.workers.dev/mcp"
      ]
    }
  }
}

Why the wrapper?
This is a remote (HTTP) server and Claude Desktop only launches local processes, so mcp-remote proxies the connection. It will open a browser window if the server needs OAuth.
Restart Claude Desktop
The tools appear under the 🔌 menu once the app reloads.

How to install Workday Calendar in CursorAI-first code editor

Create / edit .cursor/mcp.json in your project

json

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

Enable it
Cursor Settings → MCP → toggle the server on. Tools become available to the Composer/Agent.

How to install Workday Calendar in Codex CLIOpenAI coding agent

Add to ~/.codex/config.toml

toml

[mcp_servers.workday-calendar]
command = "npx"
args = ["-y", "mcp-remote", "https://workday-calendar.regnotes.workers.dev/mcp"]

Why the wrapper?
Codex runs MCP servers as local processes, so mcp-remote bridges this HTTP endpoint to stdio.
Run Codex
Codex loads MCP servers from config.toml on startup and exposes their tools to the agent.

How to install Workday Calendar in WindsurfCodeium's agentic IDE

Edit ~/.codeium/windsurf/mcp_config.json

json

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

Reload
Windsurf → Cascade → refresh MCP servers. Cascade can now call the tools.

How to install Workday Calendar in ClineVS Code autonomous agent

Open Cline → MCP Servers → Configure
Adds to cline_mcp_settings.json.

Add the server

json

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

How to install Workday Calendar in VS CodeCopilot / MCP support

Create .vscode/mcp.json

json

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

Start it
VS Code shows a ▶ Start action above the server entry. Agent mode (Copilot Chat) can then use the tools.

What tools does Workday Calendar expose? (4)

Read from the live server. Click any tool for its input schema.

business_dayWhether 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_addDate 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_countNumber 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.
holidaysAll 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 the code can do

This is a remote server — nothing is installed or run on your machine, so there is no local code to analyze. What it can reach is described above: your requests go to the provider's host.

Before you install

Signals gathered from the source repo and package registry — not a safety verdict.

What it can reach

Third-party hosted service — Your requests and any data in them are sent to workday-calendar.regnotes.workers.dev.
No local execution — Nothing is installed or run on your machine.

No source repository — This registry entry does not link to a public repo, so its code cannot be reviewed before you install it.

Client compatibility

Claude Code: NativeClaude Desktop: Via mcp-remoteCursor: NativeCodex CLI: Via mcp-remoteWindsurf: NativeCline: NativeVS Code: Native

Health score

D · 33

Maintenance, adoption, transparency and packaging — not a safety audit. How this is calculated

Maintenance30%not measurable
No commit history available.
Adoption20%not measurable
No usage data available.
Transparency20%25%
1/4: ✗ public source repo, ✗ declared license, ✗ documentation, ✓ discoverable tool list.
Provenance15%0%
No source repository to trace the code back to.
Packaging15%75%
Remote endpoint; authentication requirements not declared.

Alternatives to Workday Calendar

Maintain Workday Calendar? Add a badge to your README

Shows its health grade, and links readers to install steps for every client.

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Catalog data refreshed Oct 28, 2026. Something wrong? Report it.