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Privacy policy
How information is handled across the Celeste website and open-source project.
Last updated: September 17, 2026
Introduction
Celeste AI ("we", "our", or "us") is an open-source project committed to transparency and user privacy. This Privacy Policy explains how we handle information across our website (withceleste.ai), our open-source software, and our associated services.
Information we collect
As an open-source project, we minimize data collection. However, we may process the following types of information:
- Website Analytics: We use Cloudflare for web hosting and analytics. This may include standard web logs (IP addresses, browser types) used for security and performance monitoring.
- Voluntary Communications: If you contact us via external channels (such as email or GitHub issues), we receive the information you choose to provide.
- Newsletters & Subscriptions: If you subscribe to our changelog or newsletter, we collect and store your email address to send you updates about the project.
- API Integrations: Our analytics page reads public project data from GitHub and PyPI Stats. It also reads aggregated website metrics stored in our database. We store aggregated project metrics (such as star counts, view counts, or download statistics) in our database to provide historical analytics. This data is related to the project itself and does not contain personal information of individual users.
How we use information
We use the limited information we collect solely to:
- Maintain and improve the performance of our website.
- Respond to your inquiries or support requests.
- Provide the specific features you request (e.g., displaying repository metrics).
Newsletters & subscriptions
You may voluntarily subscribe to our changelog or newsletter to receive updates about the project. If you do so:
- We store your email address in our database solely for the purpose of sending you these updates.
- We do not sell or share your email address with third-party advertisers.
- You may unsubscribe at any time by contacting us or following the instructions in any email we send.
Third-party services
Our project relies on several third-party services. Their use of information is governed by their respective privacy policies:
- Cloudflare: Used for hosting and security.
- GitHub: Used for code hosting and project management.
- Supabase: Used for storing subscriptions and project metadata.
Data retention
We retain information only for as long as necessary to fulfill the purposes outlined in this policy:
- Analytics Logs: Standard web logs are retained by Cloudflare according to their retention policies.
- Aggregated Metrics: Historical project metrics (such as daily star counts or view counts) are stored indefinitely to analyze long-term trends. These metrics are aggregated and do not contain personal user data.
- Email Addresses: If you subscribe to our newsletter, we retain your email address until you unsubscribe or ask us to remove it.
Data security
We implement standard security measures to protect against unauthorized access or disclosure of any data we process. However, please note that no method of transmission over the internet is 100% secure.
Your rights
You have the right to request access to or deletion of any personal information we may hold about you. You may also disable cookies in your browser settings.
Contact us
If you have any questions about this Privacy Policy, please open an issue on our GitHub repository.