Early access · Paid API credit is live. New accounts still get free starter credit; provider payouts are coming soon.

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Contact

Get in touch.

Umbra is a small alpha, so email is the fastest way to reach us. Pick the inbox that fits and we will get back to you.

General & support

Questions about the product, your account, API keys, billing, or anything else. This is the best first stop.

Privacy

Questions about our Privacy Policy, what data we keep, or your data rights.

Providers

Running or planning to run a provider Mac: setup, attestation, hosting, and the Provider Agreement.

Security

Report a security issue. We do not have a dedicated security inbox yet, so please write to hello@ with "SECURITY" in the subject and we will route it.

Common questions may already be answered. See the FAQ, the quickstart, or the live status page. For legal terms, see Terms, Privacy, and the Provider Agreement.