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Hebcal MCP server

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by hebcal·io.github.hebcal/hebcal·v0.9.9·6 stars
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Model Context Protocol extension for Hebrew calendar

B79/100grade B
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Safety scan
B79/100

full report

Adoption
Growing

6 stars44 downloads/wk

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Hebcal tools (7)

write = sends, deletes, buys or posts
  • convert-gregorian-to-hebrewFree

    Converts a Gregorian (civil) date to a Hebrew date (Jewish calendar)

  • convert-hebrew-to-gregorianFree

    Converts a Hebrew date to a Gregorian (civil) date

  • daf-yomiFree

    Calculates the Daf Yomi (Babylonian Talmud) learning for a specified date

  • jewish-holidays-yearFree

    Calculates a list of all Jewish holidays during a Gregorian (civil) year

  • shabbat-timesFree

    Generates Shabbat and holiday candle-lighting and Havdalah times for a given location and date range

  • torah-portionFree

    Calculates the weekly Torah portion (also called parashat haShavua) for a specified date

  • yahrzeitFree

    Calculates the Yahrzeit, the anniversary of the day of death of a loved one, according to the Hebrew calendar for a specified date

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

1 high
  • Code scan5 source files scanned25/25
  • Live reliabilityremote reachable in 904ms20/20
  • Tool poisoning7 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancerepository archived0/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Findings (1)

  • highRepository is archivedmaint.archived
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install Hebcal in Claude Code, Cursor or VS Code

claude mcp add --transport http hebcal https://www.hebcal.com/mcp
Add to Cursor

What the publisher says

From the Hebcal repository's README, as published. We do not edit it. Read it on GitHub

Hebcal Jewish holidays and Hebrew calendar Model Context Protocol (MCP) server

This repository has moved. This functionality now lives at

hebcal/hebcal-api-go. This repo is

archived and read-only; please file issues and send pull requests there instead.

Hebcal (pronounced HEEB-kal, as in Hebrew calendar) is a free Jewish calendar and holiday web site.

Our mission is to increase awareness of Jewish holidays and to help Jews to be observant of the mitzvot.

Nothing above is checked by us. What we check is on the safety report.

Hebcal: common questions

Is Hebcal MCP server safe?
Mostly: it is graded B (79/100). Read the Hebcal safety report
How do I install Hebcal?
It runs remotely at www.hebcal.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Hebcal need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Hebcal maintained?
The last commit was 32 days ago (2026-09-11). The latest release is v0.9.9.
Is Hebcal up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Hebcal?
Servers from other publishers that do the same job: Agent-Native Calendar MCP server, AIquila — Nextcloud MCP Server and Intervals Icu MCP server. Compare all Hebcal alternatives.

Alternatives to Hebcal

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