K-Company Lookup API

Korean business registry lookup by 사업자등록번호. Name, CEO, industry, status, founding date — in English.

MCP Tools

lookup_company_by_bizno

Pass a 10-digit Korean bizno, get full company record: name, representative, industry, status, founding date, address.

search_korean_companies

Search by company name or industry keyword (English or Korean). Returns up to 50 matching records with bizno.

validate_bizno

Validate a bizno checksum without a registry lookup. Returns valid/invalid and reason — useful for form validation.

Quick Start

## Lookup by bizno curl https://api.lazy-mac.com/k-company-lookup/lookup/1168100015 ## Search by name curl "https://api.lazy-mac.com/k-company-lookup/search?q=samsung" ## MCP initialize curl -X POST https://api.lazy-mac.com/k-company-lookup/mcp \ -H "Content-Type: application/json" \ -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}' ## MCP tool call — lookup curl -X POST https://api.lazy-mac.com/k-company-lookup/mcp \ -H "Content-Type: application/json" \ -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"lookup_company_by_bizno","arguments":{"bizno":"1168100015"}}}'

Free

$0/mo

100 requests/day
Lookup + search
MCP access

Pro

$29/mo

Unlimited requests
All endpoints
Bulk bizno import
Priority support