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JP Calendar X402 - Japanese Holiday Checker
x402
JP Calendar X402 - Japanese Holiday Checker is a paid API for AI agents from jp-calendar-x402.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Check if a given date is a Japanese public holiday, weekend, or business day, and return the official Japanese holiday name if applicable
Price / call$0.001
Success—
StatusUnknown
How this service works
Check whether a given date is a Japanese public holiday, a weekend, or a business day. Returns the official holiday name in Japanese (e.g. 憲法記念日, 振替休日) when the date is a holiday. Substitute holidays (振替休日) are included. Covers years 2026-2027. Cost: $0.001 USDC per request.
Output
Returns a JSON object with the queried date, its day of week (e.g. Mon), whether it is a Japanese public holiday (isHoliday boolean), whether it is a weekend (isWeekend boolean), whether it is a business day (isBusinessDay boolean), and the official Japanese holiday name (e.g. 春分の日) or null if it is not a holiday.
Example use cases
Example prompt
“Is March 21, 2026 a Japanese public holiday or a regular business day? If it's a holiday, what's the official Japanese name for it?”
Technical details
Endpoint
POSThttps://jp-calendar-x402.onrender.com/v1/checkWhen to prefer
Use this endpoint when you need to determine the holiday status of a specific single date in Japan for years 2026-2027, including substitute holidays (振替休日). Prefer this over the sibling list endpoint when you only need to check one date rather than enumerate all holidays in a year, and over the business-day-count endpoint when you don't need a range calculation.
Side effects
- Date out of supported range (2026-2027) — may return an error or empty result
- Invalid date format (non-YYYY-MM-DD) — likely returns a 400 bad request
- Payment failure via x402 protocol — returns 402 Payment Required if USDC payment is not attached
- Missing date parameter — returns 400 or validation error
Tags
x402
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