How do I find my Holiday API Key?

Log in to your [**Holiday API dashboard**](https://holidayapi.com/dashboard), and you will find your API Key on the main page. Copy and paste it below.

Does the agent support historical years?

Yes. Holiday API provides historical data. Depending on your plan, you can query holidays for past years to audit previous events.

Can the agent calculate the number of workdays?

Yes. The `get_workdays_count` tool allows your agent to calculate the exact number of non-holiday business days between two dates for any country.

Holiday API MCP Server for OpenAI Agents SDK 5 tools — connect in under 2 minutes

Name: Holiday API
Availability: InStock
Author: Vinkius

openai.github.io/openai-agents-python/mcp

Built by Vinkius GDPR 5 Tools SDK

The OpenAI Agents SDK enables production-grade agent workflows in Python. Connect Holiday API through Vinkius and your agents gain typed, auto-discovered tools with built-in guardrails. no manual schema definitions required.

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Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerStreamableHttp

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

        agent = Agent(
            name="Holiday API Assistant",
            instructions=(
                "You help users interact with Holiday API. "
                "You have access to 5 tools."
            ),
            mcp_servers=[mcp_server],
        )

        result = await Runner.run(
            agent, "List all available tools from Holiday API"
        )
        print(result.final_output)

asyncio.run(main())

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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 Holiday API MCP Server

Empower your AI agent to orchestrate your entire global event and holiday research workflow with Holiday API, the reliable source for holiday data. By connecting Holiday API to your agent, you transform complex calendar auditing into a natural conversation. Your agent can instantly retrieve public holidays for any country, audit workday counts, and identify supported languages without you ever touching a manual calendar. Whether you are planning international logistics or managing global payroll, your agent acts as a real-time event consultant, ensuring your schedules are always accurate and compliant.

The OpenAI Agents SDK auto-discovers all 5 tools from Holiday API through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Holiday API, another analyzes results, and a third generates reports, all orchestrated through Vinkius.

What you can do

Holiday Auditing — Retrieve public and federal holidays for over 200 countries and retrieve detailed metadata, including names and dates.
Workday Oversight — Calculate the next workday or count workdays between two dates to maintain a clear view of operational periods.
Global Discovery — List all supported countries and languages in the Holiday API catalog to identify regional event markers.
Temporal Intelligence — Query holidays for specific years to audit past and future global events instantly.
Usage Monitoring — Get real-time API usage and status metadata to maintain strict control over your research volume.

The Holiday API MCP Server exposes 5 tools through the Vinkius. Connect it to OpenAI Agents SDK 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 Holiday API to OpenAI Agents SDK via MCP

Follow these steps to integrate the Holiday API MCP Server with OpenAI Agents SDK.

Install the SDK

Run pip install openai-agents in your Python environment

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token from cloud.vinkius.com

Run the script

Save the code above and run it: python agent.py

Explore tools

The agent will automatically discover 5 tools from Holiday API

Why Use OpenAI Agents SDK with the Holiday API MCP Server

OpenAI Agents SDK provides unique advantages when paired with Holiday API through the Model Context Protocol.

Native MCP integration via `MCPServerSse`, pass the URL and the SDK auto-discovers all tools with full type safety

Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

Holiday API + OpenAI Agents SDK Use Cases

Practical scenarios where OpenAI Agents SDK combined with the Holiday API MCP Server delivers measurable value.

Automated workflows: build agents that query Holiday API, process the data, and trigger follow-up actions autonomously

Multi-agent orchestration: create specialist agents. one queries Holiday API, another analyzes results, a third generates reports

Data enrichment pipelines: stream data through Holiday API tools and transform it with OpenAI models in a single async loop

Customer support bots: agents query Holiday API to resolve tickets, look up records, and update statuses without human intervention

Holiday API MCP Tools for OpenAI Agents SDK (5)

These 5 tools become available when you connect Holiday API to OpenAI Agents SDK via MCP:

get_holidays

Get public holidays for a country and year

get_next_workday

Get the date after a number of workdays from a start date

get_workdays_count

Count the number of workdays between two dates

list_supported_countries

List all countries supported by Holiday API

list_supported_languages

List all languages supported by Holiday API

Example Prompts for Holiday API in OpenAI Agents SDK

Ready-to-use prompts you can give your OpenAI Agents SDK agent to start working with Holiday API immediately.

"What are the public holidays in 'US' for 2024 using Holiday API?"

"Calculate the next 10 workdays from 2024-01-01 in Brazil."

"List all countries supported by Holiday API."

Troubleshooting Holiday API MCP Server with OpenAI Agents SDK

Common issues when connecting Holiday API to OpenAI Agents SDK through the Vinkius, and how to resolve them.

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

Holiday API + OpenAI Agents SDK FAQ

Common questions about integrating Holiday API MCP Server with OpenAI Agents SDK.

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.