This API edition uses your own DeepSeek key. The developer operates no lookup server and collects no analytics or lookup history.
What goes to DeepSeek
Clicking the selection icon or using Ctrl+X (⌘X on Mac) on reading text sends your selection and, if enabled, up to 600 nearby characters to DeepSeek's official APIs. Selecting or copying alone sends nothing. News, time-sensitive selections and “Explain a little more” also start a web search. Search evidence is then passed to the model.
Your key stays on this device
Your key is saved in local extension storage, restricted to trusted extension pages and the background. It is not synced or sent to reading pages. Device/profile access may still expose local storage; it is not an encrypted secrets vault.
You control the sharing
Change or replace your key through API settings. Pause globally or per website, or turn nearby context off. Answers stay only in memory for the current card. Uninstalling removes extension storage.
Your DeepSeek account
Setup checks your key using the model-list API without sending reading text. Model and search calls are billed to your DeepSeek account. DeepSeek handles submitted data under its current API policies. Check them before submitting sensitive text. Opening original sources or the optional practice article contacts those websites.