{"uid":"cap_J4EYMhX9S0N7HntC9bhbI","slug":"mart402-japan-payroll-suite-ebd8f3fb","name":"Mart402 Japan Payroll Suite","description":"Japan payroll suite in one call: net salary + social insurance detail + income-wall analysis (+bonus withholding when previous-month salary given). Flat $0.05/call.","url":"https://mart402.com/v1/jp-payroll-suite?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"age":{"type":"number"},"prefecture":{"type":"string"},"annual_bonus_yen":{"type":"number"},"annual_gross_yen":{"type":"number"},"previous_month_after_si_yen":{"type":"number"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CP9Udx5cWeIkt3HbErUxS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes Japan net salary, social insurance breakdown, income-wall analysis, and optional bonus withholding tax in a single API call","exampleAgentPrompt":"Calculate my Japan take-home pay: I'm 35 years old, live in Tokyo, my annual gross salary is 6,000,000 yen, I have an annual bonus of 800,000 yen, and last month's salary after social insurance was 420,000 yen — give me the full net salary, social insurance breakdown, income-wall analysis, and bonus withholding.","exampleUseCases":[{"title":"Full-time employee salary check","prompt":"I'm 28, living in Osaka, earning 4,500,000 yen per year gross with a 500,000 yen annual bonus and last month's post-SI pay was 310,000 yen — can you calculate my net monthly salary, all social insurance premiums, and bonus withholding tax?"},{"title":"Part-time income wall assessment","prompt":"I'm a 45-year-old part-time worker in Kanagawa considering a pay raise to 1,300,000 yen annually — can you run a Japan income-wall analysis to show me whether I'd lose social insurance exemptions and what my net pay would actually be?"},{"title":"New hire payroll cost estimation","prompt":"We're onboarding a 32-year-old employee in Aichi prefecture at 7,200,000 yen annual gross with a 1,000,000 yen bonus — compute the full Japanese payroll breakdown including social insurance grades, net salary, and bonus withholding so we can finalize their offer letter."}],"resultDescription":"Returns net salary after all statutory deductions, itemized social insurance premiums (health, care, pension, employment) with standard grades, income-wall analysis indicating thresholds where deductions sharply increase, and bonus withholding tax amount when previous-month post-SI salary is provided.","failureModes":["Missing required fields (annual_gross_yen, age, prefecture) returns 400 validation error","Invalid prefecture name returns error or misclassification","Age outside typical working range may produce unexpected results","Previous-month salary not provided means bonus withholding is omitted from output","Network or service unavailability returns 5xx error"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive Japan payroll computation in a single call — covering net salary, social insurance breakdown, income-wall analysis, and bonus withholding — rather than calling separate endpoints for each component. Prefer over the sibling Japan Social Insurance Premiums endpoint when you also need net take-home and income-wall output. Use when building Japan HR tools, onboarding agents, or personal finance assistants targeting the Japanese market.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T03:59:04.100Z","isFirstParty":false,"canonicalSlug":"mart402-japan-payroll-suite-ebd8f3fb"}