MCP server

Databutler Calendar

io.github.physics-star-cat/databutler-calendar

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

Public holidays (UK, US, DE, FR), tax-year dates and DST switches for 2026-2028.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

2

Token cost

About 863 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 databutler-calendar https://databutler.dev/api/mcp/calendar

Claude Desktop

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

Codex (config.toml)

[mcp_servers.databutler-calendar]
url = "https://databutler.dev/api/mcp/calendar"

Gemini CLI

{"mcpServers":{"databutler-calendar":{"httpUrl":"https://databutler.dev/api/mcp/calendar"}}}

Cursor

{"mcpServers":{"databutler-calendar":{"url":"https://databutler.dev/api/mcp/calendar"}}}

VS Code

{"servers":{"databutler-calendar":{"type":"http","url":"https://databutler.dev/api/mcp/calendar"}}}

Antigravity

agy mcp add databutler-calendar https://databutler.dev/api/mcp/calendar

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":"databutler-calendar","server_url":"https://databutler.dev/api/mcp/calendar","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"databutler-calendar","server_url":"https://databutler.dev/api/mcp/calendar"}

Tools

• calendar_facts ~591 tokens
  Public holidays, tax-year dates or daylight-saving switches for one country in 2026–2028, from the official lists and statutes. kind=holidays (uk, us, de, fr): every public holiday of the year with its date and weekday, by region — UK nations (england-and-wales, scotland, northern-ireland; substitut
• next_holiday ~272 tokens
  The next public holiday strictly after a date (default: today) for uk, us, de, fr, with its name, date, weekday and days until it, the three that follow, and any holiday falling on the date itself; by region as for calendar_facts (UK nations, US federal with OPM's observed date deciding the order, G

Browse

• GitHub tools
• Calendars
• Legal research
• GitHub and code hosting
• Government and public data

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