{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_msgk7gqf4tvm","handle":"hojincheck","url":"https://wellknown.network/agents/hojincheck","links":{"self":"https://wellknown.network/agents/hojincheck/record.json","html":"https://wellknown.network/agents/hojincheck","markdown":"https://wellknown.network/agents/hojincheck/record.md","api":"https://wellknown.network/api/v1/agents/hojincheck","status":"https://wellknown.network/api/v1/agents/hojincheck/status","claim":"https://wellknown.network/agents/hojincheck/claim","claimApi":"https://wellknown.network/api/v1/claims","badge":"https://wellknown.network/agents/hojincheck/badge.svg","openapi":"https://wellknown.network/openapi.json"},"ard":{"identifier":"urn:air:hojincheck.com:agent:hojincheck","type":"application/a2a-agent-card+json"},"kind":"agent","declared":{"name":"HojinCheck","summary":"HojinCheck — Japanese corporate verification API (hojin = 法人, Japanese for \"corporate entity\"). The standard tool for AI agents everywhere to work with Japanese corporate and government open data. Six skills over Japanese government open data: corporate-number resolution and verification, qualified…","description":"HojinCheck — Japanese corporate verification API (hojin = 法人, Japanese for \"corporate entity\"). The standard tool for AI agents everywhere to work with Japanese corporate and government open data. Six skills over Japanese government open data: corporate-number resolution and verification, qualified invoice issuer (tax) registration checks, corporate profiles, Japanese address normalization, and business-day calculations. Every response embeds its data sources and retrieval timestamps. Invoke a skill by sending a message whose data part (application/json) is {\"skill\": \"<skill id>\", \"params\": {...}}; the reply is a direct message whose data part is a JSON envelope (ok, result, sources, notices). Business-level failures (e.g. a data source awaiting government credentials) are returned inside that envelope as ok:false with a structured error code such as UPSTREAM_UNAVAILABLE, not as protocol errors. Tool availability as of 2026-07-14 is stated per skill. API keys are free: self-signup at https://hojincheck.com/signup.","publisher":{"name":"HojinCheck","url":"https://hojincheck.com"},"homepage":"https://hojincheck.com/docs/en","repository":null,"version":"0.1.0","license":null,"protocols":["a2a"],"tags":["japan","corporate","corporate-number","houjin-bangou","verification","kyc","invoice","tax","compliance","gbizinfo","company-profile","open-data","address-normalization","postal-code","holidays","business-days","calendar"],"pricing":null,"endpoints":[{"url":"https://hojincheck.com","type":"a2a","auth":"none","probeable":true}],"skills":[{"id":"resolve_company","name":"Resolve Company Name to Corporate Number","tags":["japan","corporate","corporate-number","houjin-bangou","verification"],"description":"Resolve a Japanese company name (tolerant of spelling variants and kana) to corporate-number candidates with confidence scores (0-1, with evidence labels). Source: NTA Corporate Number System Web-API. Status: Implementation complete; awaiting issuance of the government API application ID (applied 2026-07-13, expected late July to late August 2026). Until connected, this tool returns UPSTREAM_UNAVAILABLE (HTTP 503) in production."},{"id":"verify_company","name":"Verify Corporate Number","tags":["japan","corporate","corporate-number","kyc","verification"],"description":"Verify a 13-digit Japanese corporate number (check-digit validated): existence, registered name, head-office address, entity kind and closure status; optional change history. Source: NTA Corporate Number System Web-API. Status: Implementation complete; awaiting issuance of the government API application ID (applied 2026-07-13, expected late July to late August 2026). Until connected, this tool returns UPSTREAM_UNAVAILABLE (HTTP 503) in production."},{"id":"verify_invoice_number","name":"Verify Qualified Invoice Issuer Registration","tags":["japan","invoice","tax","compliance","verification"],"description":"Check a qualified invoice issuer registration number (T + 13 digits) against the NTA Invoice Publication System: registration status, registration date, revocation/expiry; optional as-of-date validity and publication history. Confirmation-only by design: input is a registration number only — no name-based search, no reverse lookup, and no list/roster building (restricted by the data source's terms; publication data for sole proprietors is returned in the response only and never cached or stored…"},{"id":"get_company_profile","name":"Get Company Profile (gBizINFO)","tags":["japan","corporate","gbizinfo","company-profile","open-data"],"description":"Corporate profile for a 13-digit Japanese corporate number from gBizINFO REST API v2 (METI): address, representative, capital, employees and more, with per-field source and last-retrieved metadata. Status: Live (connected to gBizINFO REST API v2)."},{"id":"normalize_address","name":"Normalize Japanese Address","tags":["japan","address-normalization","postal-code","open-data"],"description":"Normalize a Japanese address, decompose it to prefecture / municipality / town-aza level, resolve Address-Base-Registry town IDs, and cross-check the postal code (mismatches are reported, not silently fixed). v1 granularity: parsing stops at town/aza level — block/house numbers, lot numbers, koaza and Kyoto street names are returned as an unparsed remainder (no guessing). Sources: Digital Agency Address-Base-Registry + Japan Post postal-code data (bundled local masters). Status: Live (driven by…"},{"id":"jp_calendar","name":"Japanese Holidays and Business Days","tags":["japan","holidays","business-days","calendar"],"description":"Japanese national holiday lookup and business-day calculations (Cabinet Office national holiday CSV): is-business-day checks, adding business days, counting business days in a range; optional year-end (Dec 29 - Jan 3) handling. Status: Live (driven by bundled government master data; unaffected by government API outages)."}],"tools":["Resolve Company Name to Corporate Number","Verify Corporate Number","Verify Qualified Invoice Issuer Registration","Get Company Profile (gBizINFO)","Normalize Japanese Address","Japanese Holidays and Business Days"],"extra":{"inputModes":["application/json"],"outputModes":["application/json"],"capabilities":{"streaming":false,"pushNotifications":false}},"attribution":{"kind":"a2a_card","name":"a2a_card","summary":"a2a_card","version":"a2a_card","description":"a2a_card","homepageUrl":"a2a_card","publisherUrl":"a2a_card","publisherName":"a2a_card"}},"derived":{"capabilities":[{"slug":"documents.invoice-processing","name":"Invoice Processing","confidence":1,"provenance":"declared"},{"slug":"finance.accounting","name":"Accounting","confidence":1,"provenance":"declared"},{"slug":"productivity.calendar","name":"Calendar & Scheduling","confidence":1,"provenance":"declared"}],"categories":["documents","finance","productivity"]},"observed":{"status":"live","statusReason":"Responded 1m ago.","lastOkAt":"2026-09-05T21:30:03.395Z","lastProbedAt":"2026-09-05T21:30:03.395Z","statusComputedAt":"2026-09-05T21:30:42.746Z","reliability30d":{"probes":1,"successRate":1,"p50Ms":249},"latestObservations":[{"at":"2026-09-05T21:30:03.395Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":249,"error":null,"detail":{"name":"HojinCheck","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":6}}],"tools":null,"package":null},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"a2a_card","key":"https://hojincheck.com/.well-known/agent-card.json","url":"https://hojincheck.com/.well-known/agent-card.json","firstSeenAt":"2026-09-05T18:21:18.557Z","fetchedAt":"2026-09-05T18:21:18.557Z","normalizedAt":"2026-09-05T18:21:18.557Z"}]},"firstSeenAt":"2026-09-05T18:21:18.557Z","updatedAt":"2026-09-05T18:25:49.847Z"}