The easiest Korean Business Verification API
Verify Korean business registration numbers in milliseconds.
117,078 official English company names from DART.
Built for developers, trusted by fintech startups.73% cheaper than alternatives
<50ms
Response time
4
Output formats
$0.20
Per lookup
Built for Developers
Everything you need to verify Korean businesses
The fastest, most affordable Korean KYB API. Loved by developers at fintech startups and global SaaS companies.
- Stripe-like Developer Experience
- Clean API design, clear documentation, and 3-minute integration. Built by developers, for developers.
- DART-Verified English Names
- 117,078 official English company names from DART. Choose your output format: English (en), Korean (ko), Bilingual (both), or Codes-only (code).
- Lightning Fast
- Sub-50ms response time powered by Cloudflare Workers. Global edge network for low latency.
- 73% More Affordable
- $0.20 per lookup vs $0.75+ from competitors. Enterprise-grade quality at startup-friendly pricing.
- Official Data Sources
- Connected to National Tax Service and DART. 117,078 official English company names. Real-time, accurate, and always up-to-date.
- Enterprise Ready
- HTTPS-only, audit logs, webhook support, and comprehensive API key management. Built for scale.
3-Minute Integration
Simple, powerful API
One API call. Instant verification. Works in any language or framework.
curl -X POST "https://kynode-api.kynode.workers.dev/v1/verify" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"business_number": "8090903407",
"startDate": "20260513",
"ownerName": "강민구",
"company_name": "노드메트릭스",
"language": "en"
}'1
API call to verify
3
Minutes to integrate
0
Maintenance required
Pricing
Simple, transparent pricing
Pay only for what you use. No hidden fees, no monthly minimums.
Business Verification
Most popular
$0.20per lookup
- 4 output formats: en / ko / both / code
- Priority email support
- Advanced integration guides
- 99.9% SLA guarantee
- Sub-50ms response time
- API key management
Compare to alternatives: theKYB.com $0.75+ vs AsiaVerify $1.00+
Save 73% with Kynode
Start verifying Korean businesses today
Get your API key in 60 seconds.
No credit card required for testing.