Halfspace ("we") makes Facet. These are the providers that process your data for us, known as subprocessors. Each gets only what it needs for its part, under a contract that limits it to that purpose. This is the same list as in our privacy policy.
| Provider | What it does | What it sees |
|---|---|---|
| Google Cloud (US) | Runs the Facet app and API | Everything that passes through the app |
| Neon (US) | Database | Account, workspace and task records, call metadata |
| Cloudflare (R2, DNS) | File storage, this site, network | Uploaded files, examples and built models, and captured calls, encrypted; site visits |
| Modal | GPUs that train, check and serve models | The task data each run needs; call inputs and outputs, for up to 7 days |
| OpenRouter | Sends work to open-weight models (such as DeepSeek) that write training examples and check answers, and screens what you send in against our acceptable use policy, using TypeSafe's Jev model, only on hosts that keep nothing | Task instructions, examples and answers a training run or check sends, held-out examples included; task descriptions, instructions, examples and requests for screening |
| Anthropic | Runs Facet's agent (Claude), which plans and carries out changes to your tasks | The task data the agent works on, except held-out examples, and the Slack messages it answers |
| WorkOS | Sign-in | Your name, email and sign-in details |
| Stripe | Payments and invoices | Your workspace's billing email, card and invoices; Facet never sees the full card number |
| Resend | Sends account email | Your email address and the email's content |
What none of them may do
- None of them may use your data to train models for anyone else, and none may sell it.
- The open-weight models reached through OpenRouter run only on hosts with zero data retention, which keep nothing once they answer.
When this list changes
We update this page and its date whenever we add, replace or remove a provider. Our security page says how we protect your data, and a data processing agreement (DPA) is available on request: write to privacy@halfspacelabs.com.