Korea Payroll & Tax API › minimum-wage-check

Check a South Korean monthly wage against the 2026 minimum wage (KRW 10,320/hour)

Check a South Korean monthly wage against the 2026 minimum wage (KRW 10,320/hour): counts base pay, monthly regular bonus and cash welfare allowances, supports the 90% probation rate.

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

Input

FieldTypeRequiredDescription
monthlyBasePaynumberyesMonthly base pay (KRW)
monthlyBonusnumberRegular bonus paid every month (KRW)
monthlyWelfarenumberMonthly cash welfare allowances such as meals or transport (KRW)
weeklyHoursnumberContracted hours per week; default 40
probationbooleanProbation within first 3 months of a 1+ year contract (90% rate); default false

Example request

curl -X POST https://api.kkuldogu.com/v1/minimum-wage-check -H "content-type: application/json" \
  -d '{"monthlyBasePay":2000000,"monthlyWelfare":200000}'

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 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.",
  "source": "https://kkuldogu.com",
  "tool": "minimum-wage-check",
  "input": {
    "monthlyBasePay": 2000000,
    "monthlyWelfare": 200000
  },
  "result": {
    "compliant": true,
    "hourlyEquivalent": 10526,
    "minimumHourly": 10320,
    "countedMonthlyPay": 2200000,
    "monthlyHours": 209,
    "minimumMonthlyPay": 2156880,
    "monthlySurplus": 43120,
    "monthlyShortfall": 0
  }
}

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