Privacy Policy

Last updated: July 19, 2026

Pythia Library (“Pythia,” “we,” “us,” or “our”) operates the Pythia browser extension and the website pythialibrary.com (together, the “Service”). This Privacy Policy explains what information we collect, how it's stored, and your rights regarding that data.

The Pythia extension is fully local: it has no backend server, no user accounts, and no sign-in of any kind. All of your prompts and captures stay in your own browser. The pythialibrary.com website collects a small amount of information only if you choose to join our product waitlist, as described below.

By installing the extension or using the Service, you agree to the practices described in this policy. If you do not agree, please uninstall the extension and discontinue use of the Service.


1. Information We Collect

1.1 Prompts and Captures

When you save a prompt using the extension's Save button, or create or edit a prompt manually in the popup, Pythia stores the text you provide — title, tags, and body — in chrome.storage.local, on your device. This data is never transmitted anywhere; Pythia has no server to send it to.

1.2 Selector Configuration

To keep the Save button working when claude.ai or chatgpt.com update their interface, the extension periodically fetches a small configuration file of CSS selectors from GitHub and caches it locally. This file contains no personal data, and nothing about you or your activity is included in that request beyond a standard HTTP request.

1.3 Waitlist Sign-Ups

If you choose to join the waitlist for an upcoming Pro or Team plan on pythialibrary.com, we collect the email address you provide, the plan you're interested in, and your consent to receive product update emails. We do not currently collect payment information, since no paid plans are live yet.

1.4 Information We Do Not Collect

We want to be explicit about what we do not collect:

  • Account information — Pythia has no accounts, passwords, or sign-in of any kind
  • Browsing history or URLs you visit (beyond detecting whether you are on claude.ai or chatgpt.com to activate the Save button)
  • Content of your AI conversations (we only capture the specific text you choose to save)
  • Keystrokes, mouse movements, or screen recordings
  • Device identifiers, advertising IDs, or fingerprinting data
  • Location data
  • Payment information

2. How We Use Your Information

Your prompts and captures are used only to power the extension's library, search, and insertion features inside your own browser. Nothing is transmitted to Pythia or any third party.

If you join the waitlist, we use your email address solely to notify you when the plan you signed up for becomes available and to send occasional related product updates. You can unsubscribe at any time.


3. How We Share Your Information

We do not sell, rent, or trade your information. Pythia has no server to send your prompts or captures to, so they are never shared with anyone.

Service providers. Waitlist email addresses are stored with our database provider solely to operate the waitlist, and are not shared with third parties for marketing purposes.

Legal requirements. We may disclose information if required to do so by law, or if we believe in good faith that disclosure is necessary to comply with a legal obligation, protect our rights or safety, or respond to a government request. In practice, this would only ever apply to waitlist data, since it is the only information we hold.


4. Data Retention

Prompts and captures. Stored locally in chrome.storage.local and retained on your device until you delete them within the extension or uninstall Pythia, at which point Chrome removes them.

Selector configuration cache. Refreshed periodically and cleared when you uninstall the extension.

Waitlist email addresses. Retained until the relevant plan launches and the associated communications conclude, or until you ask us to delete them, whichever comes first.


5. Data Security

Because your prompts and captures never leave your device, there is no server-side transmission or storage of that data for us to secure. Standard Chrome extension sandboxing keeps Pythia's local storage isolated from other sites and extensions.

Waitlist email addresses are stored with a database provider that encrypts data in transit and at rest. While we take reasonable measures to protect this information, no method of electronic storage is completely secure, and we cannot guarantee absolute security.


6. Your Rights

You can view, edit, and delete any prompt or capture directly in the extension at any time. Uninstalling Pythia deletes all locally stored data immediately — we have no copy to retain.

If you've joined the waitlist, you can ask us to access, correct, or delete your email address at any time by contacting us at privacy@pythialibrary.com, or by using the unsubscribe link in any email we send. We will respond within 30 days.

If you are located in the EEA, United Kingdom, or Switzerland, you also have the right to lodge a complaint with your local data protection authority about our handling of your waitlist email address.


7. Children's Privacy

The Service is not intended for use by anyone under the age of 16. We do not knowingly collect personal information from children under 16. Because the extension itself collects no personal data at all, this mainly concerns the waitlist form; if you believe a child under 16 has submitted their email through it, contact us at privacy@pythialibrary.com and we will delete it.


8. Extension Permissions

The Pythia extension requests the following browser permissions, each used solely for the purpose described:

  • storage: To save your prompts and captures locally via chrome.storage.local.
  • activeTab: To inject a Save button into the composer on claude.ai and chatgpt.com, and to insert saved prompts into the active tab.
  • tabs: To route messages between the popup and the active tab's content script.

The extension also requests host permissions for claude.ai, chatgpt.com, and the legacy chat.openai.com domain, to inject the content script that adds the Save button and handles prompt insertion. Pythia requests no other permissions and has no host permission for any backend or database provider.


9. Cookies and Tracking

The Pythia extension does not use cookies, analytics, or tracking of any kind. The pythialibrary.com website does not use advertising cookies, tracking pixels, or third-party analytics.


10. Changes to This Policy

We may update this Privacy Policy from time to time. If we make material changes, we will update the date above and, where practical, describe the change in the extension's release notes or on this page. Your continued use of the Service after the effective date constitutes acceptance of the updated policy.


11. Contact Us

If you have questions about this Privacy Policy or your data, contact us at:

Email: privacy@pythialibrary.com Website: pythialibrary.com