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index observed

Japan Business Calendar MCP

Japanese business days, holiday checks and invoice due dates for your AI agent.

Should I use this

Quality & Safety

A
Description quality
95%
Schema completeness
73%
Naming quality
85%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~258Tokens (tool definitions)
~475 BTypical response size
Minimal attention impact (0.20% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "jp-business-calendar-mcp": {
      "url": "https://jp-business-calendar-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://jp-business-calendar-mcp.donniertf.workers.dev/mcpstreamable-http

What it can do

Tool inventory

Tools (4)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
⚪next_holidays

FREE. Next 3 Japanese public holidays and whether today is a business day.

Input Schema

{
  "type": "object",
  "properties": {}
}
⚪business_days(start, days, access_token)

PRO. Add/subtract N Japanese business days from a date.

Input Schema

{
  "type": "object",
  "properties": {
    "start": {
      "type": "string"
    },
    "days": {
      "type": "number"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  },
  "required": [
    "start",
    "days"
  ]
}
⚪due_date(start, days, mode, access_token)

PRO. Invoice due date: start + N calendar or business days.

Input Schema

{
  "type": "object",
  "properties": {
    "start": {
      "type": "string"
    },
    "days": {
      "type": "number"
    },
    "mode": {
      "type": "string"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  },
  "required": [
    "start",
    "days"
  ]
}
🟢year_planner(access_token)

PRO. Full holiday list from the dataset.

Input Schema

{
  "type": "object",
  "properties": {
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

Community

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Evidence

Recent observations

verifiedversion not recorded4 tools