Licence

Apache 2.0,
no asterisks.

The Tutti runtime, all 12 official voices, the CLI, and the self-hosted server are licensed under Apache 2.0. That gives you broad commercial rights with a few well-understood obligations. Plain-English summary below — the legal text is canonical.

Read the full text → View on GitHub
You may
  • Use Tutti in commercial products without paying us.
  • Modify the source and ship a fork — public or private.
  • Distribute Tutti, including with proprietary code in the same binary.
  • Sublicense, sell, and remix derivative work.
  • Run Tutti on internal infra, customer infra, or your own hosting.
You must
  • Include a copy of the Apache 2.0 LICENSE in any distribution.
  • Preserve copyright, patent, trademark, and attribution notices.
  • State significant changes you made if you redistribute modified files.
  • Don't use the "Tutti AI" name or logo to endorse a derivative without permission.
We don’t provide
  • No warranty — Tutti is provided "as-is".
  • No liability — we're not responsible for damages from use.
  • No grant of trademark rights beyond the limited descriptive use.
Trademarks

The name and the mark.

Apache 2.0 explicitly does not grant trademark rights — that’s a separate question. Here’s how to use the name and logo without us having to email you about it.

Contributors

DCO, not CLA.

We use the Developer Certificate of Origin (developercertificate.org) — sign your commits with git commit -s and you’re done. No corporate CLA to sign.

We never re-license contributions. Your patch stays Apache 2.0 forever.

Voice packages

Each voice carries its own LICENSE.

Official voices (`@tuttiai/*`) are Apache 2.0. Community voices declare their own licence in `package.json` — the registry shows it on each voice card. Always check before committing a community voice to a regulated project.

Lawyer needs a paper trail?

We have a one-page legal review brief, MSA template, and DPA template. Email legal@tutti-ai.com and we’ll send the bundle within a business day.

Email legal →