{"uid":"cap_8MctFSg6XbYnrYCJugA89","slug":"japan-corporate-number-api-x402-4b78c941","name":"Japan Corporate-Number API (x402)","description":"KYB / KYC verification of a Japanese company: reconcile a company name (+ optional address) against the official JP corporate registry (名寄せ). Returns ranked candidate 法人番号 with a 0-1 confidence score, handling 株式会社 / (株) / ㈱ spelling variation and matching Japanese or English names. A dissolved corporation is never reported as `verified` even on an exact name match. Use it to confirm a vendor, customer, or invoice counterparty.","url":"https://houjin.agentic-jp.com/verify","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"city":{"type":"string","description":"City / ward, to disambiguate. Optional."},"name":{"type":"string","description":"Corporation name to reconcile against the registry. Required."},"prefecture":{"type":"string","description":"Prefecture, to disambiguate. Optional."},"corporate_number":{"type":"string","description":"A 法人番号 the caller wants confirmed against the name/address. Optional."}}},"responseSchema":{"type":"json","example":{"best":{"matched":{"city":true,"name":true,"name_exact":true,"prefecture":true},"confidence":0.96,"corporation":{"city":"港区","name":"国立印刷局","status":"active","street":"虎ノ門二丁目2番5号","name_en":null,"corp_kind":"101","name_kana":null,"address_en":null,"close_date":null,"prefecture":"東京都","change_date":"2015-10-05","close_cause":null,"postal_code":"1058445","update_date":"2018-04-02","address_full":"東京都港区虎ノ門二丁目2番5号","process_kind":"01","assignment_date":"2015-10-05","corp_kind_label":"National government agency","prefecture_code":"13","corporate_number":"7000012050002","close_cause_label":null,"successor_corporate_number":null}},"verified":true,"candidates":[{"matched":{"city":true,"name":true,"name_exact":true,"prefecture":true},"confidence":0.96,"corporation":{"city":"港区","name":"国立印刷局","status":"active","street":"虎ノ門二丁目2番5号","name_en":null,"corp_kind":"101","name_kana":null,"address_en":null,"close_date":null,"prefecture":"東京都","change_date":"2015-10-05","close_cause":null,"postal_code":"1058445","update_date":"2018-04-02","address_full":"東京都港区虎ノ門二丁目2番5号","process_kind":"01","assignment_date":"2015-10-05","corp_kind_label":"National government agency","prefecture_code":"13","corporate_number":"7000012050002","close_cause_label":null,"successor_corporate_number":null}}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hgYsFN_Jqfl9jWXQCLY91","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up and verifies Japanese corporations from the National Tax Agency registry using fuzzy name search, returning confidence scores and full corporate details.","exampleAgentPrompt":"Can you verify that 国立印刷局 in 港区, Tokyo is a legitimately registered Japanese corporation and get me their official corporate number from the National Tax Agency registry?","exampleUseCases":[{"title":"KYB check for new vendor","prompt":"We're onboarding a new Japanese supplier called トヨタ自動車株式会社 in Aichi prefecture — can you confirm they're an active registered corporation and get their official 法人番号?"},{"title":"Confirm corporate number before wire transfer","prompt":"Before I approve this payment, can you verify that corporate number 7000012050002 actually belongs to 国立印刷局 in 港区, Tokyo?"},{"title":"Disambiguate common company name","prompt":"I need to find the official registry details for a Japanese company named 東京商事 — they're located in Shinjuku, Tokyo. Can you look them up and get their corporate number and status?"}],"resultDescription":"Returns a verified boolean, a best-match candidate with confidence score (0–1), and full corporation details including official name, corporate number, status (active/closed), address components (prefecture, city, street, postal code), corporation kind, assignment date, and update date. Also returns a candidates array for fuzzy matches with match flags for name, city, and prefecture.","failureModes":["No matching corporation found — returns empty candidates array and verified: false","Multiple low-confidence candidates — returns candidates list without a clear best match","Payment failure via x402 — call not processed if USDC payment is not confirmed","Ambiguous name requiring prefecture/city disambiguation — confidence score below threshold","Invalid or non-existent corporate number provided — mismatch returned with verified: false"],"whenToPreferThis":"Use this endpoint when you need to verify, look up, or reconcile Japanese corporate entities against the authoritative National Tax Agency registry. Ideal for KYB/compliance workflows, vendor onboarding, and payment due-diligence involving Japanese companies. Prefer over general web search when you need an authoritative, structured registry result with a confidence score. The x402 pay-per-call model (no API key required) makes it convenient for ad-hoc or infrequent lookups without subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:33:01.093Z","isFirstParty":false}