Last updated: April 12, 2026
Sleeper Syncer does not collect, store, or share any personal data. The extension does not track browsing activity, and no analytics or telemetry are used.
The extension stores your API key and a sync toggle preference in your browser's local storage. This data never leaves your device except when your API key is sent to the companion backend server to authenticate sync requests.
When sync is enabled, the extension reads fantasy football league and draft data from Sleeper and forwards it to the SleeperLink backend (sleeperlink.onemore.build) to relay updates to your Discord server. No personal information is included in these requests.
The extension communicates only with sleeper.app (to read fantasy data) and sleeperlink.onemore.build (to relay it). No other third-party services are contacted.
If you have questions about this policy, open an issue on the project's GitHub repository.