Almanack for Claude Code

dev.almanack/almanack

Date math and SVG rendering for fictional and custom calendars. Exact, stateless and deterministic.

client:Claude Code transport:streamable-http

Install Almanack in Claude Code

run in your project directory

claude mcp add --transport http almanack https://almanack.dev/mcp

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