Last updated: February 2026
FollowKit does not collect, store, or transmit any personal data. Your X credentials and session cookies never leave your browser.
When you use the AI reply or DM generation feature, the tweet text and your pre-prompt are sent to a Cloudflare Worker that proxies the request to OpenAI. No X credentials are included in this request.
The extension stores preferences (tone, pre-prompt) and follow history in your browser's local storage via chrome.storage.local. This data never leaves your device.
Questions? Reach out on X.