Privacy policy

What z4j.com collects

This marketing website is fully static and hosted on Cloudflare Pages. We do not use cookies, analytics trackers, or third-party scripts. Cloudflare may log standard HTTP request metadata (IP, user-agent, timestamp) under their own privacy policy.

What z4j-brain collects (self-hosted)

When you self-host z4j-brain, all data stays in your infrastructure. The brain stores:

• User accounts (email, display name, argon2id password hash)
• Task events (with secrets redacted before leaving your agent)
• Audit log entries (admin actions, auth events)
• Agent metadata (hostname, capabilities)

None of this data is transmitted to z4j.com or any external service. You own your data.

Telemetry

z4j-brain does not phone home. There is no telemetry, no usage reporting, no license-check call. The brain works fully air-gapped.

Email

If you contact us at licensing@z4j.com or security@z4j.com, we retain your email for correspondence. We do not subscribe you to marketing lists.

Changes

We may update this policy. Changes are committed to the public repository and noted in the changelog.

Contact

Privacy questions: privacy@z4j.com