Asia • ISO KR
Verify South Korea companies via API
Know Your Customer Limited verifies South Korea companies live from the DART, returning company data, controlling parties, shareholders and beneficial owners, and registry documents, with AML screening and ongoing monitoring. Free sandbox available.
What the API returns for South Korea
When you create a KYB case for a South Korea company, Know Your Customer Limited retrieves data live from the DART. A single integration returns the company record, the controlling parties and individuals, the shareholders and beneficial owners, and the registry documents, with AML screening on the entity and its associated individuals built into the same case.
South Korea data and document availability
What the API makes available for South Korea companies:
| Category | Available |
|---|---|
| Company data | Entity Name, Entity Type, Entity Status, Registration Number, Address, Registration Date, Other Name, Other Identifiers, Taxpayer Identification Number, Activity Type |
| Controlling entities & individuals | Name, Role |
| Shareholders & beneficial owners | Name, Role, Sharecount |
| Documents | Retrieved by default: Registry Extract, List of Major Stockholders Available on demand: None beyond the default set |
AML, sanctions, and PEP screening on the entity and its associated individuals, and ongoing live monitoring with change alerts, are available for South Korea as part of the same case.
How to verify a South Korea company via API
The following example shows the complete flow: authenticate, search the South Korea registry, create a KYB case, and retrieve company data and the ownership org-chart. All calls go to the sandbox base URL for testing.
The sandbox at https://api.knowyourcustomer.dev is free. Request access to get your client credentials.
# 1. Authenticate (OAuth2 client credentials)
curl -X POST https://api.knowyourcustomer.dev/connect/token \
-d "grant_type=client_credentials" \
-d "client_id=YOUR_CLIENT_ID" \
-d "client_secret=YOUR_CLIENT_SECRET" \
-d "scope=PublicApi"
# 2. Search the South Korea registry
curl -X POST https://api.knowyourcustomer.dev/v2/Companies/search \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-d '{"name":"South Korea National Bank","codeiso31662":"KR"}'
# 3. Create a KYB case
curl -X POST https://api.knowyourcustomer.dev/v2/Companies \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-d '{"rawname":"South Korea National Bank","codeiso31662":"KR"}'
# 4. Retrieve company data and status
curl https://api.knowyourcustomer.dev/v2/Companies/CASE_ID \
-H "Authorization: Bearer $TOKEN"
# 5. Get the beneficial ownership org-chart
curl https://api.knowyourcustomer.dev/v2/Companies/CASE_ID/org-chart \
-H "Authorization: Bearer $TOKEN"
Replace YOUR_CLIENT_ID and YOUR_CLIENT_SECRET with your sandbox credentials, and CASE_ID with the caseCommonId returned in step 3.
Frequently asked questions about the South Korea KYB API
What company data can I verify in South Korea?
For a South Korea company, the API returns the company record read live from the DART: the entity name, type, status, registration number, address, and registration date, along with the controlling parties, the shareholders and beneficial owners, and the available registry documents. See the table above for the full South Korea availability.
Does the API return beneficial ownership (UBO) data for South Korea companies?
The API resolves the controlling parties, shareholders, and beneficial owners for South Korea companies and exposes them as a recursive ownership org-chart (GET /v2/Companies/{caseCommonId}/org-chart), tracing control through holding companies to the individual beneficial owners. The depth available depends on what the DART discloses. See the UBO API.
Can I retrieve official registry documents for South Korea companies?
Yes. The default document set for South Korea includes Registry Extract, List of Major Stockholders, retrieved by default. List and download them with the documents endpoint (GET /v2/Companies/{caseCommonId}/documents).
Is there a free sandbox for testing South Korea company verification?
Yes. The Know Your Customer sandbox at https://api.knowyourcustomer.dev is a free, high-fidelity test environment. Request free sandbox access to start testing.
The Know Your Customer Limited API covers 147 jurisdictions worldwide, including South Korea. One integration, one set of credentials, one response schema across all markets. Browse all covered jurisdictions.
Related coverage: Australia • China • Hong Kong • India • Indonesia • Malaysia.
Ready to verify South Korea companies?
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