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Privacy Policy

Last updated: 29 August 2026

1. Introduction

Cost Tracker API is an API cost monitoring platform designed to help you track and optimize the costs of your API usage.

This Privacy Policy explains how we collect, use, disclose, and protect your information when you use our service.

This service is operated by Ciardo Francesco (Data Controller).

Contact Information:
Email: iltuobrand@outlook.it
Location: Italy, European Union

2. Information We Collect

The service does not collect or store third-party API keys or credentials.

2.1 Account information

  • Email address
  • Name (from the OAuth provider, when you sign in with a third-party account)
  • Authentication data handled by Supabase Auth

2.2 Tracked providers

  • Provider name
  • Optional endpoint URL
  • Pricing type and value
  • Notes

All of the above are entered manually by you.

2.3 Usage records

  • Date
  • Provider
  • Model name
  • Token or call counts
  • Cost amounts

All of the above are entered manually by you.

2.4 Technical data

  • IP address processed by the hosting and authentication providers
  • Browser data processed by the hosting and authentication providers

3. Legal Basis for Processing (GDPR)

We process your personal data based on the following legal grounds:

3.1 Contract Performance (Art. 6(1)(b) GDPR)

  • Account creation and authentication
  • Providing API cost monitoring services based on the data you enter
  • Delivering cost-saving recommendations
  • Responding to support requests you send us

3.2 Legitimate Interest (Art. 6(1)(f) GDPR)

  • Platform security and fraud prevention
  • Keeping the service available and in working order
  • Technical infrastructure maintenance

3.3 Legal Obligation (Art. 6(1)(c) GDPR)

  • Compliance with applicable law
  • Response to lawful requests from authorities

3.4 Consent (Art. 6(1)(a) GDPR)

We do not send marketing communications and we do not use non-essential cookies.

4. How We Use Your Information

We use your information to:

  • Provide and maintain the Cost Tracker API service
  • Show the API costs you record across providers
  • Generate cost-saving recommendations from the data you enter
  • Send account verification and other transactional emails through Supabase Auth
  • Respond to support requests you send us
  • Help keep the service secure
  • Comply with legal obligations

5. Data Storage and Security

5.1 Infrastructure

The service uses the following providers. We do not operate a separate security programme of our own beyond what those providers supply:

  • Supabase: database, authentication and transactional email. Any encryption, backup or authentication features are those of Supabase, as described in Supabase’s own documentation and policies.
  • Vercel: hosting of the application. Transport security (HTTPS) is provided by that hosting.
  • The service does not collect or store third-party API keys or credentials.

5.2 Data Location

Account and application data are stored by Supabase. The application is hosted by Vercel. We do not independently operate data centres or specify a region in this application.

5.3 Access

You access your own data through your signed-in account. We do not offer multi-factor authentication, role-based access control or security audits as features of this service. Access practices of Supabase and Vercel are described in those providers’ own policies.

6. Third-Party Services

We use the following third-party services to operate the platform:

6.1 Vercel (hosting)

  • Purpose: Hosting and delivery of the application
  • Data processed: Technical data such as IP addresses and access logs, as processed by the hosting provider
  • Privacy policy: vercel.com/legal/privacy-policy

6.2 Supabase (database, authentication and transactional email)

  • Purpose: Database, user authentication and transactional email
  • Data processed: Account data, tracked providers and usage records you enter, and authentication data
  • Privacy policy: supabase.com/privacy

Data sharing: We do not sell, rent, or share your personal data with third parties for marketing purposes.

7. International Data Transfers

Supabase and Vercel may process data in locations they operate, which can include transfers outside the European Economic Area.

Those transfers, if any, are governed by the providers’ own terms and privacy policies. We do not operate a separate transfer mechanism of our own.

8. Data Retention

8.1 Active Accounts

We keep your data while your account remains active and as needed to provide the service.

8.2 Account Deletion

You can delete your account from Settings > Danger zone. Deletion removes the account and all associated data immediately and irreversibly. Usage records are deleted, not anonymized.

8.3 Legal Requirements

We may keep information if required by applicable law.

9. Your Rights Under GDPR

As a data subject in the European Economic Area (EEA), you have the following rights:

9.1 Right of Access (Art. 15 GDPR)

You can request a copy of the personal data we hold about you by contacting the address given in this policy.

9.2 Right to Rectification (Art. 16 GDPR)

You can request correction of inaccurate or incomplete data.

9.3 Right to Erasure (Art. 17 GDPR)

You can delete your account and all associated data immediately and irreversibly from Settings > Danger zone. You can also request deletion by contacting us.

9.4 Right to Data Portability (Art. 20 GDPR)

The application does not offer an export in JSON or CSV. You may request a copy of your data by contacting the address given in this policy.

9.5 Right to Restrict Processing (Art. 18 GDPR)

You can request limitation of how we process your data.

9.6 Right to Object (Art. 21 GDPR)

You can object to processing based on legitimate interests.

9.7 Automated Decision-Making (Art. 22 GDPR)

We do not use automated decision-making or profiling that produces legal effects.

9.8 Right to Withdraw Consent

We do not currently process personal data on the basis of consent for marketing or non-essential cookies.

9.9 How to Exercise Your Rights

To exercise any of these rights, contact us at: iltuobrand@outlook.it

We will respond to your request within 30 days (extendable by 2 months for complex requests).

10. Cookies and Tracking Technologies

10.1 Essential Cookies

We use essential cookies required for:

  • User authentication and session management
  • Security
  • Service functionality

These cookies do not require consent as they are strictly necessary for the service.

10.2 Analytics

The application does not include an analytics or tracking SDK. We do not use third-party analytics cookies.

11. Children's Privacy

Cost Tracker API is not intended for users under 16 years of age. We do not knowingly collect personal data from children.

If you believe we have inadvertently collected data from a child, contact us immediately at iltuobrand@outlook.it, and we will delete it promptly.

12. Changes to This Privacy Policy

We may update this Privacy Policy to reflect changes in:

  • Our practices
  • Legal requirements
  • Service features

Notification of changes:

  • The Last updated date at the top of this page will be revised
  • Continued use of the service after a change constitutes acceptance of the updated policy

13. Your Right to Lodge a Complaint

If you believe we have not handled your personal data correctly, you have the right to lodge a complaint with a supervisory authority:

Italian Data Protection Authority (Garante per la protezione dei dati personali)
Website: garanteprivacy.it
Address: Piazza Venezia 11, 00187 Roma, Italy
Email: garante@gpdp.it

You also have the right to lodge a complaint with the supervisory authority in your country of residence or place of work.

14. Data Protection Officer (DPO)

Given the scale and nature of our operations, we are not required to appoint a Data Protection Officer under GDPR Art. 37.

For all privacy-related inquiries, contact the Data Controller directly:
Email: iltuobrand@outlook.it
Data Controller: Ciardo Francesco

15. Contact Us

For any questions, concerns, or requests regarding this Privacy Policy or your personal data, contact us:

Email: iltuobrand@outlook.it
Data Controller: Ciardo Francesco
Location: Italy, European Union

Response Time: We aim to respond to all inquiries within 30 days.

Acknowledgment: By using Cost Tracker API, you acknowledge that you have read and understood this Privacy Policy and agree to the collection, use, and disclosure of your information as described herein.