Vinkius
Calendarific

Supercharge your AI with Calendarific. Manage Global Dates, No Matter the Time Zone.

Claude Claude
ChatGPT ChatGPT
Cursor Cursor
Gemini Gemini
Windsurf Windsurf
VS Code VS Code
JetBrains JetBrains
Vercel Vercel
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Works with every AI agent you already use

…and any MCP-compatible client

Calendarific MCP on Cursor AI Code Editor MCP Client Calendarific MCP on Claude Desktop App MCP Integration Calendarific MCP on OpenAI Agents SDK MCP Compatible Calendarific MCP on Visual Studio Code MCP Extension Client Calendarific MCP on GitHub Copilot AI Agent MCP Integration Calendarific MCP on Google Gemini AI MCP Integration Calendarific MCP on Lovable AI Development MCP Client Calendarific MCP on Mistral AI Agents MCP Compatible Calendarific MCP on Amazon AWS Bedrock MCP Support

Connect to your AI in seconds.

Calendarific lets you pull global holiday data directly into your workflow. It tracks public holidays, religious observances, and local dates across over 230 countries.

You can check specific regions, filter by type like National or Religious, and find details for any given day to plan scheduling anywhere.

What your AI can do

Get account info

Checks the current status and authentication details of your integration connection.

List supported countries

Provides a complete list of all supported countries and their corresponding ISO codes for use in queries.

List holidays by location

Lists observed holidays, limiting the results to a specific state or region within a country.

+ 3 more capabilities included
Check account status

Verify the integration is working correctly by fetching basic account information.

List country holidays

Retrieve a full list of observed public, religious, and local holidays for any specific country within a given year.

Filter by region

Get holiday data scoped to a particular state or regional area, accounting for local rules.

Discover holiday categories

List holidays based on their type, such as National Observances or Religious dates.

Check supported locations

View a directory of all 230+ countries and the ISO codes needed for planning.

Verify specific date availability

Quickly check if an exact month or day falls on a holiday to confirm work status.

Compatible AI Apps

OAuth 2.0 Compatible
Vinkius runs on Claude Claude
Vinkius runs on ChatGPT ChatGPT
Vinkius runs on Cursor Cursor
Vinkius runs on Gemini Gemini
Vinkius runs on VS Code VS Code
Vinkius runs on JetBrains JetBrains
Vinkius runs on Vercel Vercel
Vinkius runs on Zendesk Zendesk
+ any other MCP app
Included with Plan

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AI Agent

Calendarific: 6 Tools

These tools let you check account status, list country-wide or location-specific holidays, filter by type, and get supported country/language lists.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Calendarific on Vinkius

Get Account Info

Checks the current status and authentication details of your integration connection.

List Supported Countries

Provides a complete list of all supported countries and their corresponding ISO...

List Holidays By Location

Lists observed holidays, limiting the results to a specific state or region within a...

List Holidays By Type

Filters holiday data by category, such as national observances or religious dates.

List Holidays

Retrieves a list of holidays for an entire country over a specified year.

List Supported Languages

Lists all languages that the system can process when interpreting holiday data.

Connect to your AI in seconds. Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Claude AI

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.

2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.

3

Start a conversation

Open a new chat. The Calendarific integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

  • Import from OpenAPI, Swagger, or YAML specs
  • Create Agent Skills with progressive disclosure
  • Deploy to edge with MCPFusion framework
  • Built in DLP, auth, and compliance on every call
  • Real time usage dashboard and cost metering
  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Calendarific, then connect any of our 5,000+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,000+ others, all in one place
  • Add new capabilities to your AI anytime you want
  • Every connection is secured and compliant automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog every week
Calendarific MCP server cover

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Calendarific. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

VINKIUS INFRASTRUCTURE

Cloud Hosted

Managed infra

V8 Isolated

Sandboxed per request

Zero-Trust Proxy

No stored credentials

DLP Enforced

Policy on every call

GDPR Compliant

EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

Works with Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 6 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

Manually tracking international holidays is a massive headache.

Right now, planning anything that crosses borders means jumping between dozens of national government websites. You open one tab for Brazil's observances, another for Japan’s national days, and then you have to check if your specific office location in São Paulo has local variations. It's copy-pasting dates, comparing calendars, and constantly double-checking the source.

With this MCP, you just ask your agent: 'What are the working days in Rio de Janeiro for Q3?' The system handles the cross-referencing—it knows to check not only Brazil’s main holiday list but also any local exceptions specific to that region. You get a clean, consolidated answer instantly.

The `list_holidays` tool gives you complete control over date discovery.

Instead of just getting a raw list, the MCP lets you narrow down your search. You can ask for holidays only by type (like National), or limit it to specific regions using `list_holidays_by_location`. This eliminates wasted data and focuses on exactly what matters.

You stop manually filtering massive datasets in Excel. The answer is precise, structured, and ready for your next step, whether that’s updating a database entry or confirming a presentation date.

What your AI can actually do with this

Use this MCP to orchestrate global planning without manual lookups. Need to know if a client's office in Thailand is closed next month? Or maybe you need the national holiday list for Brazil for 2025? This connector pulls accurate public, religious, and local holiday data from around the world right into your conversation with your AI client.

Instead of opening dozens of country websites, you just ask. You can pinpoint holidays by state or region, narrow results down by type, or even check availability for a single day. When you connect this to Vinkius, it makes global scheduling and resource planning happen through natural language prompts. It’s simple: tell your agent where you need dates, and it handles the complexity of international observance.

Built · Hosted · Managed by Vinkius Calendarific-MCP - Global Holiday Data for Scheduling
Server ID 019d7567-8bdf-725e-a2b0-85320da2405d
Vinkius Inspector
Compliance Grade A+
Score 98.33/100
Vinkius Inspector Badge — Score 98.33/100

Questions you might have

How do I use the `list_holidays` tool with my agent? +

You simply ask your agent to list holidays for a country and year. For example: 'List all public holidays in Canada for 2025.' The MCP handles the rest.

Can I check specific areas using `list_holidays_by_location`? +

Yes, this is key. You can restrict holiday searches to a state or region within a country, which accounts for local rules that aren't visible at the national level.

What if I need to know what types of holidays exist? Use `list_holidays_by_type`. +

The list_holidays_by_type tool lets you filter by category, such as distinguishing between a mandatory National day and a voluntary Religious observance. This keeps your planning clean.

How do I know what countries are supported? Check with `list_supported_countries`. +

The agent can use the list_supported_countries tool to provide you with a master list of all 230+ available country codes and names.

How do I confirm that my API key is set up correctly? Run `get_account_info`. +

This tool checks your connection status immediately. If you get a successful response, your integration works right out of the gate. It's the fastest way to verify credentials before running any complex searches.

If I only need holiday data for a specific day or month, should I use `list_holidays`? +

Yes, you can refine your query using the date parameters within list_holidays. Instead of fetching an entire year's worth of data, this lets you pinpoint if a single date is a recognized holiday for that region.

What if I need to know which languages are supported? Check with `list_supported_languages`. +

Running list_supported_languages returns the full list of language codes. This ensures your AI agent queries for holiday descriptions and metadata in the exact language you need.

What happens if I run `list_holidays` with an incorrect country code or year? +

The system returns a clear error message detailing the invalid parameter. This instant feedback lets your agent correct the input right away, so you never waste time on bad data.

How do I list all the holidays for a specific country in 2024? +

Simply ask the agent to list_holidays and provide the Country code (e.g., 'US' or 'BR') and the year '2024'. It will retrieve the full list from Calendarific.

Can I filter holidays by type, like only religious holidays? +

Yes! Use the list_holidays_by_type tool and provide the country, year, and type (e.g., 'religious'). Your agent will return only the matching observances.

How do I see which countries are supported by Calendarific? +

Use the list_supported_countries tool. It will retrieve the complete directory of over 230 countries currently available in the Calendarific API.

Built & Managed by Vinkius 30s setup 6 tools

We've already built the connector for Calendarific. Just plug in your AI agents and start using Vinkius.

No hosting. No infrastructure. No complex setup.
All 6 tools are live and waiting. You're up and running in seconds.

Vinkius runs on Claude Claude
Vinkius runs on ChatGPT ChatGPT
Vinkius runs on Cursor Cursor
Vinkius runs on Gemini Gemini
Vinkius runs on Windsurf Windsurf
Vinkius runs on VS Code VS Code
Vinkius runs on JetBrains JetBrains
Vinkius runs on Vercel Vercel
+ other MCP clients

Vinkius gives your AI agents access to the full catalog of app connectors, all fully managed, secure, and enterprise-ready. One subscription, every tool you need.

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