Who helps run Lectern
| Provider | Current purpose | Status |
|---|---|---|
| OpenAI Sites | Website hosting and deployment management | Active |
| Cloudflare | Worker runtime, D1 database, R2 binding | Through Sites |
| Stripe | Subscription billing | Active |
| OpenAI API | Source-based variations, optional answer review, and public-content screening | Active |
| TypeSafe / Jev | Optional Plus semantic assistance for authoring and supported study decisions. Requests include the relevant source content, allowed choices, learning goal, and, for study decisions, the current answer or bounded recent evidence. Account profile and billing details are not sent. Each feature has an independent release flag and baseline fallback. | Limited beta |
| Google Firebase | Email and Google sign-in, credential verification, authentication sessions | Active |
| Google Cloud | Media processing, media database and storage, encrypted recovery copies, operational monitoring | Active |
| Resend | Lectern verification and reset emails, necessary billing and operational messages | Active |
| Google / Microsoft / Apple | User-requested calendar destinations | Links or exported files; no connected calendar account |
See the Privacy Notice for processing, retention, and deletion practices. Lectern does not promise US-only processing or immediate expiry of every provider backup.