Inday — Public Holiday API MCP Server

Ask your AI assistant about public holidays in 30+ countries — right inside Claude, Cursor, VS Code, and any MCP-compatible client.

MCP Endpoint: `https://inday.co/api/mcp`

Transport: Streamable HTTP

Auth: `X-API-KEY` header

Getting Started

Step 1 — Get a free API key

Sign up at inday.co/signup. Free tier includes 1,000 requests/month, no credit card required.

Step 2 — Add to your AI client (see setup below)

Step 3 — Start asking questions

*"Is next Monday a holiday in Turkey?"* · *"How many working days in Germany in Q2 2026?"*

Setup

Claude Desktop

macOS — edit `~/Library/Application Support/Claude/claude_desktop_config.json`

Windows — edit `%APPDATA%\Claude\claude_desktop_config.json`

{
  "mcpServers": {
    "inday": {
      "type": "streamable-http",
      "url": "https://inday.co/api/mcp",
      "headers": {
        "X-API-KEY": "your_api_key_here"
      }
    }
  }
}

Restart Claude Desktop after saving.

Cursor

Edit `~/.cursor/mcp.json` (or Settings → MCP → Add Server):

{
  "mcpServers": {
    "inday": {
      "type": "streamable-http",
      "url": "https://inday.co/api/mcp",
      "headers": {
        "X-API-KEY": "your_api_key_here"
      }
    }
  }
}

VS Code (GitHub Copilot / Continue)

Edit `.vscode/mcp.json` in your workspace, or your user `settings.json`:

{
  "mcp": {
    "servers": {
      "inday": {
        "type": "streamable-http",
        "url": "https://inday.co/api/mcp",
        "headers": {
          "X-API-KEY": "your_api_key_here"
        }
      }
    }
  }
}

Smithery (1-click install)

Available Tools

Example Prompts

• *"Is next Monday a holiday in Turkey? If so, what holiday is it?"*
• *"Plan a sprint for April — exclude all holidays in Germany and the UK."*
• *"How many working days does my UAE team have in Ramadan 2026?"*
• *"What's the next long weekend in the US?"*
• *"Compare holidays in France and Germany this month — which team has more working days?"*
• *"Schedule a client call for next week avoiding holidays in both Turkey and the US."*

Supported Countries

🇹🇷 TR · 🇩🇪 DE · 🇺🇸 US · 🇬🇧 GB · 🇦🇪 AE · 🇸🇦 SA · 🇫🇷 FR · 🇯🇵 JP · 🇨🇦 CA · 🇦🇺 AU · 🇮🇳 IN · 🇧🇷 BR · 🇳🇱 NL · 🇪🇸 ES · 🇮🇹 IT · 🇵🇱 PL · 🇸🇪 SE · 🇳🇴 NO · 🇩🇰 DK · 🇫🇮 FI · 🇨🇭 CH · 🇦🇹 AT · 🇧🇪 BE · 🇵🇹 PT · 🇨🇿 CZ · 🇷🇴 RO · 🇺🇦 UA · 🇷🇺 RU · 🇮🇩 ID · 🇸🇬 SG · and more.

Full list via `list_countries` tool or inday.co

Pricing

View plans & upgrade →

Links

• 🌐 Website: inday.co
• 🔑 Get API Key: inday.co/signup
• 📦 MCP Registry: `io.github.gokhanibrikci/inday-holiday-api`
• 🤝 Support: inday.co/support