MCP server for Hebcal, enabling users to generate Jewish holiday lists, convert Hebrew dates, look up Shabbat candle lighting times, Torah readings, and yahrzeits
Installation and connection instructions are shown only when supported by retained package, repository, or endpoint evidence.
Version 0.10.3 declares 1 executable entrypoint.
npm install --save-exact @hebcal/mcp@0.10.3npx -y -p @hebcal/mcp@0.10.3 @hebcal/mcp{
"mcpServers": {
"@hebcal/mcp": {
"command": "npx",
"args": [
"-y",
"-p",
"@hebcal/mcp@0.10.3",
"@hebcal/mcp"
]
}
}
}| Canonical slug | hebcal-mcp-2d6e5096 | Deployment | Local Only |
|---|---|---|---|
| Canonical package | npm:@hebcal/mcp | Repository | hebcal/hebcal-mcp |
| First published | — | Latest release | — |
| Last security verification | — | Classification confidence | 90% |
| Publication | Published | Official distribution | Yes |
| Channel | Identifier | Current version | Versions | Source |
|---|---|---|---|---|
| npm | @hebcal/mcp | 0.10.3 | 1 | Repository |
| Package | Version | Published / observed | Inventory | Security scan |
|---|---|---|---|---|
| npm@hebcal/mcp | 0.10.3Current | Sep 5, 2026 | 7 toolsSucceeded · 0 resources · 0 prompts | Failed |
Independently scan the exact version your agents use, receive alerts when its risk changes, and investigate every finding with retained version evidence.
| Provenance | artifact_hash_verified | Signature | — |
|---|---|---|---|
| MCP SDK | @modelcontextprotocol/sdk | Artifact SHA-256 | 2542f083fb56221dc0f65274ea8a6689b66c9913cc28ebce52201905bbed3a1a |
| Scanner | mcp-proof-engine 0.1.0 | Scan completed | Aug 20, 2026 |
| Security rating | 32 / 100 | Methodology | version-rating-1.0 |
[ "@hebcal/mcp" ]
[ "security_policy_not_observed" ]
| Tool | Category | Annotations | Risk |
|---|---|---|---|
convert-gregorian-to-hebrewConverts a Gregorian (civil) date to a Hebrew date (Jewish calendar)Input schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"date": {
"type": "string",
"description": "Gregorian date (in yyyy-MM-dd format) to convert"
}
},
"required": [
"date"
]
} | — | — | |
convert-hebrew-to-gregorianConverts a Hebrew date to a Gregorian (civil) dateInput schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"day": {
"type": "integer",
"minimum": 1,
"maximum": 30,
"description": "Hebrew day of month"
},
"month": {
"type": "string",
"description": "Hebrew month name transliterated, like Elul or Tishrei"
},
"year": {
"type": "integer",
"minimum": 1,
"maximum": 9999,
"description": "Hebrew year"
}
},
"required": [
"day",
"month",
"year"
]
} | — | — | |
daf-yomiCalculates the Daf Yomi (Babylonian Talmud) learning for a specified dateInput schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"date": {
"type": "string",
"description": "Gregorian date in yyyy-MM-dd format"
}
},
"required": [
"date"
]
} | — | — | |
jewish-holidays-yearCalculates a list of all Jewish holidays during a Gregorian (civil) yearInput schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"year": {
"type": "integer",
"minimum": 1,
"maximum": 9999,
"description": "Gregorian year"
}
},
"required": [
"year"
]
} | — | — | |
shabbat-timesGenerates Shabbat and holiday candle-lighting and Havdalah times for a given location and date rangeInput schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"latitude": {
"type": "number",
"minimum": -90,
"maximum": 90,
"description": "Latitude as decimal, valid range -90 to +90 (e.g. 41.85003)"
},
"longitude": {
"type": "number",
"minimum": -180,
"maximum": 180,
"description": "Longitude as decimal, valid range -180 to +180 (e.g. -87.65005)"
},
"tzid": {
"type": "string",
"description": "Olson timezone ID (e.g. \"America/Chicago\", \"Europe/Moscow\")"
},
"startDate": {
"type": "string",
"description": "Start date in yyyy-MM-dd format"
},
"endDate": {
"type": "string",
"description": "End date in yyyy-MM-dd format"
}
},
"required": [
"latitude",
"longitude",
"tzid",
"startDate",
"endDate"
]
} | — | — | |
torah-portionCalculates the weekly Torah portion (also called parashat haShavua) for a specified dateInput schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"date": {
"type": "string",
"description": "Gregorian date in yyyy-MM-dd format"
},
"il": {
"type": "boolean",
"description": "True if in Israel, false for Diaspora"
}
},
"required": [
"date",
"il"
]
} | — | — | |
yahrzeitCalculates the Yahrzeit, the anniversary of the day of death of a loved one, according to the Hebrew calendar for a specified dateInput schema{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"date": {
"type": "string",
"description": "Gregorian date of death (in yyyy-MM-dd format)"
},
"afterSunset": {
"type": "boolean",
"description": "after sunset"
}
},
"required": [
"date",
"afterSunset"
]
} | — | — |
| Endpoint | Transport | Authentication | Health | Observed |
|---|---|---|---|---|
| No verified remote endpoint is linked. | ||||
Install the selected package version with: npm install --save-exact @hebcal/mcp@0.10.3
hebcal-mcp Server exposed 7 tools during independent protocol observation, including convert-gregorian-to-hebrew, convert-hebrew-to-gregorian, daf-yomi, jewish-holidays-year, shabbat-times, torah-portion, yahrzeit.
Our scanner tested version 0.10.3 without proving a finding in the methods exercised. This is not a guarantee that every deployment is secure.
Curated product and capability guides containing this catalog record.