Korea Payroll & Tax API › weekly-hours-check

South Korea 52-hour workweek check under the Labor Standards Act

South Korea 52-hour workweek check under the Labor Standards Act: 40 standard hours plus at most 12 overtime hours a week (35 plus 5 for workers under 18); workplaces with fewer than 5 employees are exempt for adults.

Price: $0.01 USDC per call over REST (x402 on Base, no API key). MCP: free as weekly_hours_check at https://api.kkuldogu.com/mcp. Basis year: 2026.

Input

Field	Type	Required	Description
`weeklyHours`	number	yes	Hours actually worked in the week
`fiveOrMoreEmployees`	boolean		Workplace has 5 or more employees; default true
`minor`	boolean		Worker is under 18; default false

Example request

curl -X POST https://api.kkuldogu.com/v1/weekly-hours-check -H "content-type: application/json" \
  -d '{"weeklyHours":55}'

Without payment this returns 402 with x402 payment requirements; an x402 client pays $0.01 USDC and retries.

Example response

{
  "basisYear": 2026,
  "currency": "KRW",
  "disclaimer": "For reference only, not legal, tax or financial advice. Computed from South Korean statutes and standard formulas as of 2026; reliefs, exemptions and special cases not shown in the result are not modeled, and rules may have changed. Confirm with the relevant office, court, lender or a professional before acting.",
  "source": "https://kkuldogu.com",
  "tool": "weekly-hours-check",
  "input": {
    "weeklyHours": 55
  },
  "result": {
    "applicable": true,
    "standardHours": 40,
    "maxOvertimeHours": 12,
    "legalMaxHours": 52,
    "overtimeHours": 15,
    "exceedsLegalLimit": true,
    "excessHours": 3
  }
}

For reference only, not legal or tax advice. Uses official 2026 Korean rates and the same formulas as the kkuldogu.com calculators; actual payroll, NHIS/NPS notices and tax settlement can differ. · Calculators for people (Korean): kkuldogu.com · API home · llms.txt · OpenAPI