Bring Public Holidays
to Pydantic AI
Create your Vinkius account to connect Calendarific to Pydantic 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.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
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
- Subscribe to this server
- Enter your Calendarific API Key
- 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)
Check the status of the integration
List holidays for a specific country and year
List holidays for a specific state or region
List holidays filtered by type (e.g. national, religious)
List all supported countries and their ISO codes
List all supported languages
Why Pydantic AI?
Pydantic AI validates every Calendarific tool response against typed schemas, catching data inconsistencies at build time. Connect 6 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
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Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
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Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Calendarific integration code
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Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
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Dependency injection system cleanly separates your Calendarific connection logic from agent behavior for testable, maintainable code
Calendarific in Pydantic AI
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.
* 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
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
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.
Calendarific and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Calendarific to Pydantic 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.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Calendarific for Pydantic AI
Every request between Pydantic 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.
Frequently asked questions
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.
How does Pydantic AI discover MCP tools?
Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.
Does Pydantic AI validate MCP tool responses?
Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.
Can I switch LLM providers without changing MCP code?
Absolutely. Pydantic AI abstracts the model layer. your Calendarific MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.
MCPServerHTTP not found
Update: pip install --upgrade pydantic-ai
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