the402 endpoint detail

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kaisha-api.hp-vladic.workers.dev calendar business-days

https://kaisha-api.hp-vladic.workers.dev/calendar/business-days

payable

Japanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0xF2A6416EBb0C594Ab2977695bED061729ddEb47b
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
240 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:09:48.781Z (2d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fkaisha-api.hp-vladic.workers.dev%2Fcalendar%2Fbusiness-days"