hebcal-mcp
OfficialServer Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| convert-gregorian-to-hebrewA | Converts a Gregorian (civil) date to a Hebrew date (Jewish calendar) |
| convert-hebrew-to-gregorianB | Converts a Hebrew date to a Gregorian (civil) date |
| yahrzeitC | Calculates the Yahrzeit, the anniversary of the day of death of a loved one, according to the Hebrew calendar for a specified date |
| torah-portionA | Calculates the weekly Torah portion (also called parashat haShavua) for a specified date |
| jewish-holidays-yearB | Calculates a list of all Jewish holidays during a Gregorian (civil) year |
| daf-yomiA | Calculates the Daf Yomi (Babylonian Talmud) learning for a specified date |
| shabbat-timesA | Generates Shabbat and holiday candle-lighting and Havdalah times for a given location and date range |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 7 tools
Each tool has a distinct and unique purpose: date conversion (both directions), Daf Yomi, holidays for a year, Shabbat times, Torah portion, and Yahrzeit. No two tools overlap in functionality.
All tool names use lowercase with hyphens, following a clear noun-based or verb-noun structure (e.g., convert-gregorian-to-hebrew, shabbat-times). The naming is highly uniform and predictable.
With 7 tools, the server is well-scoped for a Jewish calendar utility. Each tool addresses a common need without excess or redundancy.
Covers major Jewish calendar functions: date conversion, holidays, Shabbat times, Torah portion, Daf Yomi, and Yahrzeit. Missing a few advanced features like Molad times or specific fast day details, but covers core use cases.