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Japan Business Day API
x402
Japan Business Day API is a paid API for AI agents from japan-business-day-api.matchan962.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Checks whether a given date is a business day in Japan, returning holiday status, official holiday name in Japanese and English, and the next/previous business day.
Price / call$0.005
Success—
StatusUnknown
How this service works
Is a given date a business day in Japan? Returns weekday/holiday status, official holiday name (JA/EN) and next/previous business day. Source: Cabinet Office of Japan.
Output
Returns a JSON object with the queried date, day of week, whether it is a holiday, the official holiday name in Japanese and English (if applicable), whether it is a business day, and the next business day date.
Example use cases
Automated invoice scheduling for Japan
“I need to send an invoice to our Japanese client that's due on November 23, 2025 — can you check if that's actually a business day in Japan, and if not, what's the next valid business day I should use instead?”
Bank transfer deadline verification
“We're planning a bank transfer to Japan on December 31, 2025. Is that a business day for Japanese banks? I want to make sure the payment will actually be processed that day.”
Japanese holiday-aware event planning
“We're scheduling a virtual meeting with our Tokyo office on February 11, 2026. Is that a business day in Japan, or is it a public holiday? If it's a holiday, what's the next available business day?”
Technical details
Endpoint
GEThttps://japan-business-day-api.matchan962.workers.dev/v1/is-business-day?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative Japanese business day and public holiday data sourced directly from Japan's Cabinet Office, especially when you need official bilingual holiday names or need to distinguish between national and bank holidays (e.g. the Dec 31–Jan 3 bank holiday window).
Side effects
- Missing or invalid date parameter returns a 400 error
- Date outside supported range may return empty or error response
- Invalid calendar enum value may cause a 400 validation error
- Network or worker availability issues may return 5xx errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"date": "2026-11-03",
"dayOfWeek": "Tuesday",
"isHoliday": true,
"holidayName": "文化の日",
"holidayNameEn": "Culture Day",
"isBusinessDay": false,
"nextBusinessDay": "2026-11-04"
}
}Tags
x402
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