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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use Calendar & Holiday Engine with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Calculate exact dates for global holidays across Gregorian, Islamic, Hebrew, Chinese, and Hindu calendars.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 3 capabilities

The complete Calendar & Holiday Engine capability set.

These are the exact actions your AI can choose when you ask it to work with Calendar & Holiday Engine.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Calendar & Holiday Engine.

  1. 01

    Check holiday proximity

    Answers how many days remain until the next upcoming holiday or how many days have passed since the last one

  2. 02

    Get holiday details

    Provide the exact name of the holiday. Provides deep metadata for a specific holiday occurring in a specific year

  3. 03

    Get holidays by year

    You can optionally provide a country code to filter for public holidays. Returns a complete list of all holidays for a specific year across all supported calendar systems and countries

Observed, not estimated

770ms average. Fast in production.

Calendar & Holiday Engine is checked daily against the live service.

Daily averagePeak 1030ms
Aug 27Today
Fastest day
673ms
Slowest day
1030ms
14-day trend
Slowing+15%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Calendar & Holiday Engine, so you can see the experience inside your AI.

It does not authenticate your account with Calendar & Holiday Engine. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Calendar & Holiday Engine Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_QjSKggQJHu9raCtEmHkfqTFaoKRductNOiRw2Gvz/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Calendar & Holiday Engine capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "calendar-holiday-engine-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_QjSKggQJHu9raCtEmHkfqTFaoKRductNOiRw2Gvz/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions Calendar & Holiday Engine owners ask.

  • 01

    What is the supported year range?

    The engine supports any year from 1583 to 9999.

  • 02

    Can I check if a holiday is a public holiday?

    Yes, by providing a valid ISO 3166-1 alpha-2 country code, the capabilities will indicate if the holiday is officially recognized in that territory.

  • 03

    Which calendar systems are supported?

    The engine supports Gregorian, Christian-Movable, Hijri, Hebrew, Chinese, Hindu, and Secular calendar systems.

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