Licensing

Licensing

Gate and Flow are under the Business Source License 1.1: free to evaluate, a commercial licence for production, and MPL 2.0 for every version after four years.

The licence

Gate and Flow are licensed under the Business Source License 1.1. It lets you copy, modify and redistribute the software, and use it for anything other than production: evaluation, development, testing. Neither product carries an additional use grant, so running either in production needs a commercial licence from Kirto.

Each version converts to the Mozilla Public License 2.0 on its change date. From then on that version is open source, production use included, with no commercial licence needed.

ProductLicenceEach version becomes MPL 2.0
GateBusiness Source License 1.121 August 2030, or four years after a version is first published, whichever comes first
FlowBusiness Source License 1.1four years after a version is first published

What is under other licences

Gate's control packs are under the Apache License 2.0, because a pack exists to be copied into your own configuration and kept there. Gate's documentation is under Creative Commons Attribution 4.0, so it can be quoted, copied and bundled for agents with attribution.

The commercial licence

A commercial licence covers production use of the versions it names. Write to hello@kirto.com with the product and where it would run.

Nothing in either product enforces the licence. There is no licence key, no activation and no usage report, so the licence is an agreement between us, held by contract.