Almanack for Claude.ai
dev.almanack/almanack
Date math and SVG rendering for fictional and custom calendars. Exact, stateless and deterministic.
client:Claude.ai
transport:streamable-http
Install Almanack in Claude.ai
Settings → Connectors → Add custom connector
https://almanack.dev/mcpClaude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs