MCP server

Business Days & Workday Calc

app.openkrill/business-days

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

Count workdays, office days and PTO days, or list bank holidays and school breaks.

Website Source

At a glance

Type

MCP server

Publisher

openkrill.app (verified by the MCP Registry)

Status

Working at last check

Tools

5

Token cost

About 2,132 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 business-days https://businessdays.openkrill.app/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.business-days]
url = "https://businessdays.openkrill.app/mcp"

Gemini CLI

{"mcpServers":{"business-days":{"httpUrl":"https://businessdays.openkrill.app/mcp"}}}

Cursor

{"mcpServers":{"business-days":{"url":"https://businessdays.openkrill.app/mcp"}}}

VS Code

{"servers":{"business-days":{"type":"http","url":"https://businessdays.openkrill.app/mcp"}}}

Antigravity

agy mcp add business-days https://businessdays.openkrill.app/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":"business-days","server_url":"https://businessdays.openkrill.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"business-days","server_url":"https://businessdays.openkrill.app/mcp"}

Tools

• add_business_days ~555 tokens
  Use this when the user asks what date is a number of working days, business days or workdays after or before a date, including an SLA due date or turnaround, for example "what date is 37 business days after 11 August in England?", "when is payment due 30 business days from invoice date 3 March in Ge
• count_business_days ~639 tokens
  Use this when the user asks how many working days, business days, workdays, office days or PTO days there are between two dates, or for a statutory holiday count, for example "how many working days between 14 July and 18 August in Germany?", "how many working days are left in December in Ontario?" o
• list_holidays ~440 tokens
  Use this when the user asks which public holidays, bank holidays, statutory holidays or school breaks a country, state or province has in a year, for example "is Monday a bank holiday in Bavaria?", "public holidays in Vietnam in 2027" or "school holidays in Bavaria". Pass the country code and the ye
• submit_feedback ~356 tokens
  Send feedback, a bug report or a tool request to the maintainers of the tools on this server: a missing tool, missing or stale data, or a tool that broke or gave a wrong answer. Pass the kind (need_tool, need_data, bug or other), one short message (at most 1000 characters) and, if you know it, the t

Browse

• Monday tools
• Calendars
• Payments
• Invoicing and accounting
• Legal research

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