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Terms of service

Last updated: April 2026

Open-source software

z4j is open-source software. The brain is licensed under AGPL v3; agent packages are licensed under Apache 2.0. Your use of the software is governed by those licenses, not these terms.

This website

z4j.com and z4j.dev are informational websites maintained by the z4j project. Content is provided as-is for documentation and marketing purposes.

No warranty

z4j is provided "as is" without warranty of any kind. See the AGPL v3 and Apache 2.0 license texts for the full disclaimer.

Security

If you discover a security vulnerability, report it to security@z4j.com. Do not file a public issue. See our vulnerability disclosure policy.

Commercial licensing

Commercial license terms are separate and provided on a per-organization basis. Contact licensing@z4j.com.

Changes

We may update these terms. Changes are committed to the public repository.

Contact

General inquiries: hello@z4j.com