MCP server

Hebcal Official

io.github.hebcal/hebcal

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Model Context Protocol extension for Hebrew calendar

Source

At a glance

Type

MCP server

Publisher

hebcal.com (verified by the MCP Registry)

Status

Working at last check

Tools

7

Token cost

About 821 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.hebcal]
url = "https://www.hebcal.com/mcp"

Gemini CLI

{"mcpServers":{"hebcal":{"httpUrl":"https://www.hebcal.com/mcp"}}}

Cursor

{"mcpServers":{"hebcal":{"url":"https://www.hebcal.com/mcp"}}}

VS Code

{"servers":{"hebcal":{"type":"http","url":"https://www.hebcal.com/mcp"}}}

Antigravity

agy mcp add hebcal https://www.hebcal.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"hebcal","server_url":"https://www.hebcal.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"hebcal","server_url":"https://www.hebcal.com/mcp"}

Tools

• convert-gregorian-to-hebrew ~89 tokens
  Converts a Gregorian (civil) date to a Hebrew date (Jewish calendar)
• convert-hebrew-to-gregorian ~123 tokens
  Converts a Hebrew date to a Gregorian (civil) date
• daf-yomi ~81 tokens
  Calculates the Daf Yomi (Babylonian Talmud) learning for a specified date
• jewish-holidays-year ~79 tokens
  Calculates a list of all Jewish holidays during a Gregorian (civil) year
• shabbat-times ~216 tokens
  Generates Shabbat and holiday candle-lighting and Havdalah times for a given location and date range
• torah-portion ~111 tokens
  Calculates the weekly Torah portion (also called parashat haShavua) for a specified date
• yahrzeit ~122 tokens
  Calculates the Yahrzeit, the anniversary of the day of death of a loved one, according to the Hebrew calendar for a specified date

Browse

• More Hebcal tools
• GitHub tools
• Calendars
• GitHub and code hosting

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