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 Google ADK 2 tools — connect in under 2 minutes

Name: Calendarific Alternative
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 2 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Calendarific Alternative as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

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

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="calendarific_alternative_agent",
    instruction=(
        "You help users interact with Calendarific Alternative "
        "using 2 available tools."
    ),
    tools=[mcp_tools],
)

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Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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.

Google ADK natively supports Calendarific Alternative as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 2 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

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 Google ADK 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 Google ADK via MCP

Follow these steps to integrate the Calendarific Alternative MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 2 tools from Calendarific Alternative via MCP

Why Use Google ADK with the Calendarific Alternative MCP Server

Google ADK provides unique advantages when paired with Calendarific Alternative through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Calendarific Alternative

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine Calendarific Alternative tools with BigQuery, Vertex AI, and Cloud Functions

Calendarific Alternative + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Calendarific Alternative MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Calendarific Alternative and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Calendarific Alternative tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Calendarific Alternative regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Calendarific Alternative

Calendarific Alternative MCP Tools for Google ADK (2)

These 2 tools become available when you connect Calendarific Alternative to Google ADK via MCP:

get_holidays

Get holidays for a country and year

list_supported_countries

List all supported countries

Example Prompts for Calendarific Alternative in Google ADK

Ready-to-use prompts you can give your Google ADK 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 Google ADK

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

McpToolset not found

Update: pip install --upgrade google-adk

Calendarific Alternative + Google ADK FAQ

Common questions about integrating Calendarific Alternative MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.