databutler calendar MCP

v1.0.0

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

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

transport:streamable-http tools:2

Target client

run in your project directory

claude mcp add --transport http databutler-calendar https://databutler.dev/api/mcp/calendar

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs


                calendar_facts

calendar facts


                next_holiday

next holiday

All 2 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.