Licensing & Intellectual Property

1. Public SDKs & Packages — Business Source License 1.1 (BUSL-1.1)

Applies to: public repositories, PyPI packages (such as b4n1-boost), and integration libraries.

• Free for Startups & Developers (under $100,000 USD/year): Free for development, evaluation, personal projects, and commercial production use by individuals or organizations with annual gross revenue under $100,000 USD.
• Commercial Requirement ($100,000 USD/year or more): Organizations with annual gross revenue of $100,000 USD or more, government agencies, and public procurement contractors must purchase a paid commercial license tier before deploying B4N1 SDKs into production.
• Open Source Transition (Change Date): Under BUSL-1.1 terms, each released version of public SDK source code automatically converts to the Apache License 2.0 exactly four (4) years after its release date.
• SPDX Identifier: BUSL-1.1
• AS IS: THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. IN NO EVENT SHALL THE AUTHOR (B4N1) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE.

2. Native Standalone Binaries — B4N1 Binary Commercial EULA

Applies to: compiled standalone executables (b4n1-suite, b4n1-web, b4n1-harness, b4n1.bin, app.bin). All pre-compiled standalone executable binaries are proprietary software distributed in closed-binary format under the B4N1 Binary End User License Agreement (EULA).

• Community ($0 / Free, 1 machine): Free for personal use and organizations under $100k/year gross revenue. Includes a discrete console watermark.
• Developer ($69/year, 3 machines): Full features, no watermark.
• Pro ($399/year, 3 machines): Full white-label execution, hybrid SDK embedding, and author signature. +$9/year per additional machine.
• Enterprise (Custom): Turnkey on-prem appliances, custom architecture integration, and SLA guarantees.

Restrictions: reverse engineering, decompilation, binary patching, and unauthorized redistribution of closed binaries are strictly prohibited.

Activation workflow: b4n1-suite license buy → PayPal → .b4n1lic (offline Ed25519 verification, no phone-home)

3. Core Engine & Private Source Code — Proprietary & Confidential

The internal compiler engines, AST transpilation routines, and core execution runtimes remain 100% proprietary, closed-source, and protected under trade secret laws (All Rights Reserved). Source code for the core binary compiler is not licensed under BUSL-1.1 and is never distributed or subject to open-source conversion dates.