Service
Checks Korean business operating status and validates registration identity details through both native endpoints of the National Tax Service's official public data API (data.go.kr).
94.99%30-day uptimeAvg response768ms
Selecting a row opens the reference for that API.
| Method | API | Path | Summary |
|---|---|---|---|
| POST | /v1/korea-business-verify/check-business-status | Looks up the National Tax Service's operating status (계속사업자/휴업자/폐업자), VAT taxpayer type, and business-unit taxation conversion-closure flag (utcc_yn) for 1 to 100 10-digit business registration numbers (사업자등록번호) in a single call. Use when you only have the registration number and need to verify that a counterparty's business is still active before invoicing or onboarding. Do NOT use for the separate authenticity check (진위확인: matching the number against the opening date and representative name) — use korea-business-verify:validate-business-registration instead. Returns results (one row per submitted number with b_stt/b_stt_cd, tax_type/tax_type_cd, end_dt, utcc_yn, tax_type_change_dt, invoice_apply_dt, and rbf_tax_type/rbf_tax_type_cd) plus request_count and match_count. | |
| POST | /v1/korea-business-verify/validate-business-registration | Validates up to 10 Korean business identities per call against the National Tax Service (NTS) authenticity-check (진위확인) endpoint. Use when you have the 10-digit business registration number, opening date (YYYYMMDD), and representative name and need to confirm they match NTS records. Do NOT use for a status-only lookup when you only have the registration number — use korea-business-verify:check-business-status instead. Optional Korean representative name, business name, corporate registration number, business sector/type, and address are forwarded as supplied. Returns results (one per submitted record with b_no, valid, valid_code, valid_message, and the current tax status when NTS supplies it) plus request_count and valid_count; the submitted identity details are not echoed back. |
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