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Korea Business Verify (KBV)
x402
Korea Business Verify (KBV) is a paid API for AI agents from kbv-server-f7vfitmlkq-du.a.run.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Looks up the real-time registration status and tax type of a Korean business by its 10-digit business registration number (사업자등록번호) via the National Tax Service (NTS)
Price / call$0.02
Success—
StatusUnknown
How this service works
Korean business registration status + tax type by business number (NTS, real-time)
Output
Returns the real-time registration status (e.g. active, closed, suspended) and tax type (e.g. general, simplified, exempt) of the Korean business associated with the provided 10-digit business registration number, sourced directly from the National Tax Service (NTS).
Example use cases
Vendor due diligence before payment
“Before we wire money to this Korean supplier, can you verify that business registration number 2208162551 is currently active and find out what tax type they're registered under?”
KYB compliance check for onboarding
“We're onboarding a new Korean business partner with BRN 101-81-30261 — can you confirm their registration is valid and pull their tax classification from the NTS?”
Fraud prevention for Korean marketplace
“A seller just listed products on our platform claiming to be a registered Korean business. Can you check if business registration number 5018777195 is legitimately active according to the NTS?”
Technical details
Endpoint
GEThttps://kbv-server-f7vfitmlkq-du.a.run.app/v1/business/:brno/statusWhen to prefer
Use this endpoint when you need real-time, authoritative Korean business registration status directly from the National Tax Service (NTS) — especially for KYB compliance, vendor onboarding, fraud prevention, or any workflow involving Korean business counterparties. Prefer this over scraped or cached data sources when accuracy and freshness are critical.
Side effects
- Invalid or malformed BRNO (not 10 digits) returns a validation error
- Business number not found in NTS database returns a not-found or unknown status
- NTS API downtime or rate limiting may cause upstream failures
- Hyphens/spaces in the BRNO may need to be stripped before submission
- Payment failure (x402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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