4,000+ servers built on MCP Fusion
Vinkius
Mastra AISDK
Mastra AI
Why use Calendarific MCP Server with Mastra AI?

Bring Public Holidays
to Mastra AI

Create your Vinkius account to connect Calendarific to Mastra AI and start using all 6 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

MCP Inspector GDPR Free for Subscribers
Get Account InfoList HolidaysList Holidays By LocationList Holidays By TypeList Supported CountriesList Supported Languages
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
Calendarific

What is the Calendarific MCP Server?

Connect your Calendarific account to any AI agent and orchestrate your global scheduling, vacation planning, and local observability through natural conversation.

What you can do

  • Holiday Oversight — List all public, religious, and local holidays for a specific country and year.
  • Regional Observability — Filter holidays by state or region to ensure your planning accounts for local variations.
  • Categorized Discovery — List holidays by type, such as National, Observance, or Religious holidays.
  • Country & Language Directory — Access the list of 230+ supported countries and their respective ISO codes.
  • Date-Specific Queries — Retrieve holidays for a specific month or day to verify work availability.
  • Reference Data — Get detailed metadata for each holiday, including descriptions and observance regions.

How it works

  1. Subscribe to this server
  2. Enter your Calendarific API Key
  3. Start exploring global holidays from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Operations & Project Managers — quickly check for upcoming holidays in international offices without manual searches.
  • Travel & Logistics Teams — retrieve holiday calendars for planning and resource allocation straight from their workflow tools.
  • Developers — integrate holiday checking logic into their applications using natural language.

Built-in capabilities (6)

get_account_info

Check the status of the integration

list_holidays

List holidays for a specific country and year

list_holidays_by_location

List holidays for a specific state or region

list_holidays_by_type

List holidays filtered by type (e.g. national, religious)

list_supported_countries

List all supported countries and their ISO codes

list_supported_languages

List all supported languages

Why Mastra AI?

Mastra's agent abstraction provides a clean separation between LLM logic and Calendarific tool infrastructure. Connect 6 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.

  • Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Calendarific without touching business code

  • Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation

  • TypeScript-native: full type inference for every Calendarific tool response with IDE autocomplete and compile-time checks

  • One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure

M
See it in action

Calendarific in Mastra AI

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run Calendarific with Vinkius?

The Calendarific connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 6 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

Calendarific
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect Calendarific using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Why Vinkius

Calendarific and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect Calendarific to Mastra AI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

How Vinkius secures Calendarific for Mastra AI

Every request between Mastra AI and Calendarific is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

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.

02

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.

03

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.

04

How does Mastra AI connect to MCP servers?

Create an MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.

05

Can Mastra agents use tools from multiple servers?

Yes. Pass multiple MCP clients to the agent constructor. Mastra merges all tool schemas and the agent can call any tool from any server.

06

Does Mastra support workflow orchestration?

Yes. Mastra has a built-in workflow engine that lets you chain MCP tool calls with branching logic, error handling, and parallel execution.

07

createMCPClient not exported

Install: npm install @mastra/mcp

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