# Hebcal Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Hebcal

Convert between Gregorian and Hebrew calendars, find Jewish holidays, Shabbat times, and Torah portions.

- Record: https://musedirectory.ai/connector/hebcal
- Category: Lifestyle
- Developer: Hebcal
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 371ms, checked 2026-09-28T08:46:01Z
- Endpoint: https://www.hebcal.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-25T07:56:32Z)
- Source: Found in the official MCP Registry (io.github.hebcal/hebcal) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.hebcal%2Fhebcal

Connects to Hebcal's Hebrew calendar service. Muse can convert dates between calendars, show Jewish holidays for any year, calculate Shabbat candle-lighting times for your location, find weekly Torah portions, and track Yahrzeit anniversaries.

Example request: "What time should I light Shabbat candles this Friday in New York?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Hebcal to help me. It is a free service with an MCP server at https://www.hebcal.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- convert-gregorian-to-hebrew: Converts a Gregorian (civil) date to a Hebrew date (Jewish calendar)
- convert-hebrew-to-gregorian: Converts a Hebrew date to a Gregorian (civil) date
- daf-yomi: Calculates the Daf Yomi (Babylonian Talmud) learning for a specified date
- jewish-holidays-year: Calculates a list of all Jewish holidays during a Gregorian (civil) year
- shabbat-times: Generates Shabbat and holiday candle-lighting and Havdalah times for a given location and date range
- torah-portion: Calculates the weekly Torah portion (also called parashat haShavua) for a specified date
- yahrzeit: Calculates the Yahrzeit, the anniversary of the day of death of a loved one, according to the Hebrew calendar for a specified date

Screening checks:
- MCP handshake: pass (Answered in 386ms)
- Domain against threat feeds (Cloudflare security DNS): pass (www.hebcal.com not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: pass (7 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)