Chrome Extension
Sorcery Price Tracker
Effective date: March 1, 2026
Sorcery Price Tracker ("the Extension") is a Chrome browser extension that displays TCGPlayer market prices for Sorcery: Contested Realm cards on Curiosa.io deck and collection pages.
This Privacy Policy describes what data the Extension accesses, how it is used, and how it is stored. We are committed to protecting your privacy and being transparent about our practices.
The Extension reads and processes the following data solely to provide its core functionality:
| Data | Purpose | Storage |
|---|---|---|
| TCGPlayer price data | Card prices scraped from TCGPlayer price guide pages you visit | Local only |
| TCGPlayer card URLs | Product page links stored alongside prices for direct linking | Local only |
| Curiosa deck contents | Card names and quantities read from the page to display prices | Not stored |
| Curiosa collection contents | Card names and quantities read from the page to display prices | Not stored |
| Canonical card names | Fetched from the public Sorcery TCG API for name normalization | Local only |
All data stored by the Extension is saved exclusively in Chrome's local extension storage on your own device using the chrome.storage.local API. This data:
— Never leaves your device
— Is never transmitted to any server operated by this Extension
— Is never shared with any third party
— Can be cleared at any time by removing the Extension
The Extension interacts with the following third-party websites, solely at your direction when you visit them in your browser:
| Service | Interaction |
|---|---|
| TCGPlayer.com | Price data is read from pages you actively visit. No additional requests are made to TCGPlayer beyond normal page loads. |
| Curiosa.io | The Extension reads deck and collection data from pages you actively visit, and makes requests to Curiosa's own API on your behalf to resolve card set information. |
| api.sorcerytcg.com | A public API used to fetch canonical card names for name normalization. No personal data is sent. |
The Extension has no affiliation with TCGPlayer, Curiosa, or Sorcery: Contested Realm. These are independent services subject to their own privacy policies.
To be explicitly clear, the Extension does not collect, transmit, or have access to:
— Your name, email address, or any account credentials
— Your browsing history outside of the specific pages it operates on
— Your Curiosa account information or login status
— Your TCGPlayer account information
— Any analytics, telemetry, or usage data
— IP addresses or device identifiers
— Any form of personally identifiable information
The Extension requests the following Chrome permissions, each used solely for the stated purpose:
| Permission | Reason |
|---|---|
| storage | Saves scraped price data locally on your device so prices persist between browser sessions. |
| scripting | Injects price badges into Curiosa.io pages to display prices next to card names. |
| alarms | Schedules a periodic refresh of canonical card names from the public Sorcery TCG API. |
If this Privacy Policy is updated, the new version will be published at this URL with a revised effective date. Continued use of the Extension after any changes constitutes acceptance of the updated policy.
We do not anticipate changes that would introduce data collection — any such change would be communicated clearly.
If you have any questions about this Privacy Policy or how the Extension handles data, you are welcome to open an issue on the extension's GitHub repository or reach out directly via the Chrome Web Store listing.