Privacy Policy

Last updated: May 10, 2026

1. Introduction

Nodemetrics ("we", "our", or "us") operates Kynode, a Korean Business Verification API service. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our API service.

2. Information We Collect

2.1 Account Information

When you create an account, we collect:

  • Email address
  • Company name (optional)
  • Payment information (processed securely through Stripe)

2.2 API Usage Data

When you use our API, we collect:

  • Business registration numbers queried (encrypted)
  • API request timestamps
  • Response times and status codes
  • API key used (hashed)
  • IP address (for security and fraud prevention)

2.3 Automatically Collected Information

We automatically collect:

  • Browser type and version
  • Operating system
  • Referring URLs
  • Pages viewed and time spent

3. How We Use Your Information

We use the collected information to:

  • Provide and maintain our API service
  • Process your API requests
  • Send you service-related notifications
  • Detect and prevent fraud and abuse
  • Monitor and analyze usage patterns
  • Improve our service quality
  • Comply with legal obligations

4. Data Retention

We retain your information for as long as necessary to provide our services and comply with legal obligations:

  • Account information: Until account deletion + 30 days
  • API usage logs: 90 days
  • Billing records: 7 years (legal requirement)
  • Audit logs: 1 year

5. Data Sharing and Disclosure

We do not sell your personal information. We may share your information with:

  • Service Providers: Cloudflare (infrastructure), Stripe (payments), Vercel (hosting)
  • Legal Requirements: When required by law or to protect our rights
  • Business Transfers: In connection with a merger, sale, or acquisition

6. Data Security

We implement appropriate security measures:

  • Encryption in transit (TLS 1.3)
  • Encryption at rest for sensitive data
  • API key hashing
  • Regular security audits
  • Access controls and monitoring

7. Your Rights

You have the right to:

  • Access your personal information
  • Correct inaccurate data
  • Request deletion of your data
  • Export your data
  • Opt-out of marketing communications
  • Withdraw consent

To exercise these rights, contact us at privacy@kynode.dev

8. Cookies and Tracking

We use essential cookies for:

  • Authentication
  • Security
  • Preference storage

We do not use third-party tracking or advertising cookies.

9. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. We ensure appropriate safeguards are in place for such transfers.

10. Children's Privacy

Our service is not intended for users under 18 years of age. We do not knowingly collect information from children.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

12. Contact Us

If you have questions about this Privacy Policy, please contact us:

13. Governing Law

This Privacy Policy is governed by the laws of the Republic of Korea.