Can I see all holidays in Brazil for 2024?

Yes! Use the `get_holidays` tool with the country 'BR' and the year 2024. It will return a full list of public and bank holidays.

How do I find the ISO code for a country?

Use the `get_countries` tool. It returns a comprehensive list of all supported countries along with their 2-letter ISO codes (e.g., 'US', 'FR', 'JP').

Does this include religious holidays like Easter?

Yes. Calendarific tracks national, bank, and religious holidays. You can identify the type of holiday in the metadata returned by the tools.

Calendarific Alternative MCP Server for Pydantic AI 2 tools — connect in under 2 minutes

Name: Calendarific Alternative
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 2 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Calendarific Alternative through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

    agent = Agent(
        model="openai:gpt-4o",
        mcp_servers=[server],
        system_prompt=(
            "You are an assistant with access to Calendarific Alternative "
            "(2 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Calendarific Alternative?"
    )
    print(result.data)

asyncio.run(main())

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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Calendarific Alternative MCP Server

Equip your AI agent with global temporal intelligence through the Calendarific MCP server. This integration provides real-time access to a comprehensive database of public, bank, and religious holidays for over 200 countries. Your agent can retrieve holiday lists for specific years, filter results by month or day, and explore the list of supported countries and languages. Whether you are scheduling international meetings, planning travels, or auditing regional availability, your agent acts as a dedicated global calendar coordinator through natural conversation.

Pydantic AI validates every Calendarific Alternative tool response against typed schemas, catching data inconsistencies at build time. Connect 2 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.

What you can do

Holiday Retrieval — Fetch all public and bank holidays for a country and year.
Temporal Filtering — Narrow down holidays by specific months or days for precise scheduling.
Country Intelligence — List all supported countries and their ISO codes for global operations.
Metadata Access — View detailed holiday descriptions and types (religious, national, etc.).
Holiday Auditing — Summarize and compare holiday calendars between different countries for better coordination.

The Calendarific Alternative MCP Server exposes 2 tools through the Vinkius. Connect it to Pydantic AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Calendarific Alternative to Pydantic AI via MCP

Follow these steps to integrate the Calendarific Alternative MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 2 tools from Calendarific Alternative with type-safe schemas

Why Use Pydantic AI with the Calendarific Alternative MCP Server

Pydantic AI provides unique advantages when paired with Calendarific Alternative through the Model Context Protocol.

Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application

Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Calendarific Alternative integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your Calendarific Alternative connection logic from agent behavior for testable, maintainable code

Calendarific Alternative + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the Calendarific Alternative MCP Server delivers measurable value.

Type-safe data pipelines: query Calendarific Alternative with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple Calendarific Alternative tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query Calendarific Alternative and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock Calendarific Alternative responses and write comprehensive agent tests

Calendarific Alternative MCP Tools for Pydantic AI (2)

These 2 tools become available when you connect Calendarific Alternative to Pydantic AI via MCP:

get_holidays

Get holidays for a country and year

list_supported_countries

List all supported countries

Example Prompts for Calendarific Alternative in Pydantic AI

Ready-to-use prompts you can give your Pydantic AI agent to start working with Calendarific Alternative immediately.

"What are the bank holidays in the UK for May 2024?"

"Check if there are any holidays in Japan on November 3rd."

"List all countries supported by Calendarific."

Troubleshooting Calendarific Alternative MCP Server with Pydantic AI

Common issues when connecting Calendarific Alternative to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Calendarific Alternative + Pydantic AI FAQ

Common questions about integrating Calendarific Alternative MCP Server with Pydantic AI.

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 Alternative MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.