# Kaisha API – Japanese National Holidays

> Kaisha API – Japanese National Holidays is a paid API for AI agents from kaisha-api.hp-vladic.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Returns the list of Japanese national public holidays for a specified year (1955–2027) from the official Cabinet Office dataset.

## Facts

- Endpoint: GET https://kaisha-api.hp-vladic.workers.dev/calendar/holidays
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kaisha-api-japanese-national-holidays-6b38cb1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fST3-4eAXa97NCygakzif

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability kaisha-api-japanese-national-holidays-6b38cb1a
```

Example prompt: Can you pull up all the official Japanese national public holidays for 2025 so I can see which dates to avoid scheduling meetings?

## When to prefer this

Use this endpoint when you need an authoritative, government-sourced list of Japanese national public holidays for a specific year between 1955 and 2027, especially for business scheduling, date calculations, or compliance with Japanese labor calendars. Prefer this over scraped or third-party holiday datasets when official accuracy is required.

## Known failure modes

- Year out of supported range (1955–2027) returns an error or empty response
- Missing year parameter may default to current year or return a validation error
- Network or Cloudflare Workers timeout for upstream data unavailability
- Payment failure (402) if x402 micropayment of $0.002 USDC is not processed correctly

## How this service works

Japanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.

## Output

A structured list of Japanese national public holidays for the requested year, including holiday names (in Japanese and/or English) and their corresponding dates, sourced from the official Japanese Cabinet Office dataset.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "year": {
       "type": "number",
       "description": "Year 1955-2027"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "year": 2026,
  "source": "Cabinet Office of Japan (内閣府)",
  "holidays": [
   {
    "date": "2026-01-01",
    "name": "元日"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kaisha-api-japanese-national-holidays-6b38cb1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kaisha-api.hp-vladic.workers.dev](https://www.zero.xyz/host/kaisha-api.hp-vladic.workers.dev/llms.txt)