Jp Calendar MCP server
{
"mcpServers": {
"plugrail-jp-calendar": {
"type": "http",
"url": "https://jp-calendar.plugrail.dev/mcp"
}
}
}{
"mcpServers": {
"plugrail-jp-calendar": {
"type": "http",
"url": "https://jp-calendar.plugrail.dev/mcp"
}
}
}{
"mcpServers": {
"plugrail-jp-calendar": {
"type": "http",
"url": "https://jp-calendar.plugrail.dev/mcp"
}
}
}{
"servers": {
"plugrail-jp-calendar": {
"type": "http",
"url": "https://jp-calendar.plugrail.dev/mcp"
}
}
}{
"mcpServers": {
"plugrail-jp-calendar": {
"type": "http",
"url": "https://jp-calendar.plugrail.dev/mcp"
}
}
}file .mcp.json (in your project root)file claude_desktop_config.jsonfile ~/.cursor/mcp.jsonfile .vscode/mcp.jsonfile ~/.codeium/windsurf/mcp_config.jsonversion 0.1.1
What it does
This server provides Japanese holiday and business-day calculations based on official Japan Cabinet Office data. It is for developers building applications that need to account for Japanese holidays and calculate working days.
- Check whether a specific date is a Japanese holiday.
- Calculate the number of business days between two dates, excluding holidays and weekends.
- Add a specified number of business days to a given date.
Tools this server exposes
| Tool | Does |
|---|---|
| is_holiday | Check if a given date is a Japanese holiday. |
| list_holidays | List all Japanese holidays within a specified period. |
| business_days_between | Calculate the number of business days between two dates, excluding holidays and weekends. |
| add_business_days | Add a specified number of business days to a given date, skipping holidays and weekends. |
Before you enable it
An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.
This server has not seen a commit in 2 mo. It may still work, but nobody is currently fixing it — check the alternatives before you build on it.