MCP server

Openholidays

io.github.pipeworx-io/openholidays

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

OpenHolidays MCP.

Working at last checkOfficial: pipeworx.io's GitHub account (pipeworx-io)About 27,204 tokens per request once connected46 tools

https://gateway.pipeworx.io/openholidays/mcp

At a glance

Type: MCP server
Publisher: pipeworx.io (verified by the MCP Registry)
Status: Working at last check
Tools: 46
Token cost: About 27,204 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

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 openholidays https://gateway.pipeworx.io/openholidays/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.openholidays]
url = "https://gateway.pipeworx.io/openholidays/mcp"

Gemini CLI

{"mcpServers":{"openholidays":{"httpUrl":"https://gateway.pipeworx.io/openholidays/mcp"}}}

Cursor

{"mcpServers":{"openholidays":{"url":"https://gateway.pipeworx.io/openholidays/mcp"}}}

VS Code

{"servers":{"openholidays":{"type":"http","url":"https://gateway.pipeworx.io/openholidays/mcp"}}}

Antigravity

agy mcp add openholidays https://gateway.pipeworx.io/openholidays/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":"openholidays","server_url":"https://gateway.pipeworx.io/openholidays/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"openholidays","server_url":"https://gateway.pipeworx.io/openholidays/mcp"}

list_countries ~94 tokens
List the ~30 European countries OpenHolidays covers, with their ISO codes and official languages. EUROPE-focused. Keyless.
list_subdivisions ~165 tokens
List the regional subdivisions (federal states, regions, cantons, etc.) of a European country, with their codes and category. Use the returned codes to scope school_holidays. EUROPE-focused. Keyless.
public_holidays ~291 tokens
Public (statutory) holidays for a European country in a date range, with regional subdivisions. EUROPE-focused (~30 countries: DE, FR, NL, CH, IT, AT, BE, ES, PL, etc.). Returns each holiday with its localized name, dates, whether it is nationwide, and which subdivisions observe it. Keyless. For sch
school_holidays ~351 tokens
School holidays (term breaks: Christmas, Easter, summer, etc.) for a European country in a date range, optionally scoped to one subdivision. This is the unique value-add over worldwide public-holiday sources — school calendars vary by region. EUROPE-focused (~30 countries). Returns each break with i

Calcgrid
China working-day data, UK bank holidays, IANA time zones and deterministic business deadlines.
DatoQA
Sourced data and FX across 30 currencies; table validation, paid reconciliation and file conversion.
Swiss Holidays
Swiss school & public holidays, 26 cantons, by Schulart (OpenHolidays + Nager.Date)

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