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 Cursor 5 tools — connect in under 2 minutes

Name: Holiday API
Availability: InStock
Author: Vinkius

docs.cursor.com/context/model-context-protocol

Built by Vinkius GDPR 5 Tools IDE

Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.

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Classic Setup·json

{
  "mcpServers": {
    "holiday-api": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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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.

Cursor's Agent mode turns Holiday API into an in-editor superpower. Ask Cursor to generate code using live data from Holiday API and it fetches, processes, and writes. all in a single agentic loop. 5 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

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 Cursor 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 Cursor via MCP

Follow these steps to integrate the Holiday API MCP Server with Cursor.

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"

Add the server config

Paste the JSON configuration above into the mcp.json file that opens

Save the file

Cursor will automatically detect the new MCP server

Start using Holiday API

Open Agent mode in chat and ask: "Using Holiday API, help me...". 5 tools available

Why Use Cursor with the Holiday API MCP Server

Cursor AI Code Editor provides unique advantages when paired with Holiday API through the Model Context Protocol.

Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context

Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards

MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment

VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

Holiday API + Cursor Use Cases

Practical scenarios where Cursor combined with the Holiday API MCP Server delivers measurable value.

Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP

Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically

Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates

Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data

Holiday API MCP Tools for Cursor (5)

These 5 tools become available when you connect Holiday API to Cursor 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 Cursor

Ready-to-use prompts you can give your Cursor 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 Cursor

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

Tools not appearing in Cursor

Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.

Server shows as disconnected

Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.

Holiday API + Cursor FAQ

Common questions about integrating Holiday API MCP Server with Cursor.

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.