hebcal for Claude.ai

io.github.hebcal/hebcal

Model Context Protocol extension for Hebrew calendar

client:Claude.ai transport:streamable-http runtime:npm tools:7

Install hebcal in Claude.ai

Settings → Connectors → Add custom connector

https://www.hebcal.com/mcp

Claude 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

What Claude.ai can do once it is connected

convert-gregorian-to-hebrew
convert-hebrew-to-gregorian
daf-yomi
jewish-holidays-year
shabbat-times
torah-portion
yahrzeit

hebcal in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

hebcal MCP server