Productivity

plugrail.dev

Provides Japanese holiday and business day calculations including holiday checks, lists, and business day arithmetic.

1 endpoint4 known toolsFirst detected July 25, 2026Last detected July 25, 2026

ENDPOINT 1

https://jp-calendar.plugrail.dev/mcp

No auth detected

MCP server metadata

Name: jp-calendar
Version: 0.1.0

Capabilities

tools.listChanged

Known tools 4

is_holiday

指定した日付が日本の祝日（国民の祝日・休日）かどうかを判定します。内閣府公表データに基づきます。入力例: {"date": "2026-01-01"}

Inferred read-only

list_holidays

指定した年または期間の日本の祝日一覧を返します。入力例: {"year": 2026} または {"from": "2026-01-01", "to": "2026-06-30"}

Inferred read-only

add_business_days

指定した日付(date)の翌日から数えてN営業日目(days)の日付を返します。dateの当日は数えません。daysが負の場合は過去方向（dateの前日から遡ってN営業日目）に計算します。土日・日本の祝日を除外し、calendar="banking"を指定すると銀行休業日（12/31〜1/3）も除外します。dateが営業日かどうかだけ知りたい場合は is_holiday を使ってください。入力例: {"date": "2026-07-10", "days": 3}

Inferred read-only

business_days_between

from〜to間の営業日数を数えます。既定では「fromを含まず、toを含む」境界です（例:「今日から支払期日まで何営業日か」）。include_from/include_toで境界を変更できます。土日・日本の祝日を除外し、calendar="banking"を指定すると銀行休業日（12/31〜1/3）も除外します。from > to はエラーになります（負の期間は未対応）。入力例: {"from": "2026-07-10", "to": "2026-07-20"}

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.jp-calendar]
url = "https://jp-calendar.plugrail.dev/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "jp-calendar": {
      "type": "http",
      "url": "https://jp-calendar.plugrail.dev/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: jp-calendar
Remote MCP URL: https://jp-calendar.plugrail.dev/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "jp-calendar": {
      "url": "https://jp-calendar.plugrail.dev/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "jp-calendar": {
      "type": "http",
      "url": "https://jp-calendar.plugrail.dev/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "jp-calendar",
  "transport": "streamable-http",
  "url": "https://jp-calendar.plugrail.dev/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.