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Mart402 Japan Overtime Premium Pay Calculator
x402
Mart402 Japan Overtime Premium Pay Calculator is a paid API for AI agents from mart402.com, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-30).
Calculates Japan overtime premium wages per Labor Standards Act Article 37 with official rounding rules (kihatsu-150) and checks Article 36 hour limits
Price / call$0.015
Success—
StatusUnknown
How this service works
Japan overtime premium pay per Labor Standards Act Art.37 with the official rounding notice (kihatsu-150), plus Article-36 limit check. $0.015/call.
Output
Returns the calculated overtime premium pay amount in yen with official kihatsu-150 rounding applied, a breakdown of premium rates by overtime category (regular, late-night, holiday), and an Article 36 monthly/annual hour limit compliance check result.
Example use cases
Monthly payroll overtime processing
“Our employee earns 420,000 yen per month with 168 scheduled hours. This month they worked 18 hours of regular overtime and 8 hours of late-night overtime. What's their total overtime premium pay under Japan's Labor Standards Act Article 37 with proper rounding?”
Article 36 overtime limit compliance check
“We need to verify whether our staff member's overtime this month — 45 hours of regular overtime — stays within the Article 36 agreement limits. Their monthly salary is 280,000 yen and scheduled hours are 160. Can you run the check?”
Hourly worker overtime premium calculation
“Our part-time worker is paid hourly in Japan and worked extra hours including 10 hours of holiday overtime this month. Calculate the overtime premium amounts due under Article 37, applying the official kihatsu-150 rounding rules.”
Technical details
Endpoint
POSThttps://mart402.com/v1/jp-overtime-wage?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need Japan-specific overtime calculations that comply with Labor Standards Act Article 37 and Article 36, including the official kihatsu-150 rounding methodology required by Japanese authorities. Prefer this over generic payroll APIs when you need legally correct Japanese overtime premiums (25%, 35%, 50% rates), holiday and late-night premium distinctions, and automated Article 36 hour-limit compliance checks.
Side effects
- Invalid or missing mode parameter returns a 400 error
- Negative or zero hours values cause validation failure
- Missing monthly_salary_yen or monthly_scheduled_hours results in computation error
- Hours values that are implausibly large may trigger rejection
- Malformed JSON body returns 422 unprocessable entity
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | string | |
| hours | object | |
| monthly_salary_yen | number | |
| monthly_scheduled_hours | number |
Tags
x402
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