Privacy & local data
Mystilink is designed so metaphysics profiles, charts, and conversation files stay on your device by default; the cloud handles accounts, licensing, payments, and—when you choose Newton LLM—inference on the Newton platform and metering.
Stored locally
| Data | Location |
|---|---|
| Profile cards | Project folder .mystilink/ |
| Conversations & charts | Project folder .mystilink/ |
| UI preferences (language, theme) | ~/.mystilink/settings.json |
| BYOK LLM API keys | Local settings (masked in UI) |
Two LLM paths
| Path | How requests travel | Processed by Mystilink / Newton? |
|---|---|---|
| BYOK | Direct from your computer to the vendor you choose | No; keys are not uploaded to Mystilink |
| Newton LLM | Inference on the Newton platform (Mystilink cloud) | Yes; prepaid balance metering |
Session files still live under local .mystilink/. Choosing Newton means that inference request is processed by Mystilink / the Newton platform—this is not the same as bulk cloud sync of your workspace. See Newton LLM.
Handled in the cloud
| Data | Notes |
|---|---|
| Account | Registration, sign-in, OAuth |
| Activation key (Credential) | Issued after purchase; validated on desktop |
| Payments | License purchases, Newton top-ups, billing records |
| Newton usage metadata | Model, tokens/cost, request IDs (billing & security) |
| Update checks | Version metadata only |
Legal details: Privacy policy.
Workspace folders
The project folder you open contains .mystilink/ for profiles and sessions; user-level settings are in ~/.mystilink/. Back those up when migrating. See FAQ: Data backup.
Your responsibility
- BYOK: Content sent to vendors is governed by their privacy policies.
- Newton: Content is governed by Mystilink’s privacy policy.
- Keep API keys, activation codes, and account credentials private; do not commit them to public repos.