Terms of Service & License Agreement
Applies to the Kitwork Engine, Kitwork Platform, and all related products — self-hosted binary, managed cloud, and Kitwork-branded tooling.
1. Introduction
This document describes the Terms of Service and License Agreement for Kitwork — a sovereign multi-tenant logic engine: a Go host that runs a JavaScript subset compiled to bytecode, executed on a hand-written stack-based VM (not V8). It covers the self-hosted binary, Kitwork Cloud, all SDKs, and related tooling.
By downloading, installing, or using any part of Kitwork, you agree to these terms. If you act on behalf of a company, you confirm you have authority to bind that entity.
2. License & Usage Rights
2.1 · Engine — AGPL-3.0
The Kitwork Engine (compiler, VM, HTTP router, JIT CSS/icons, all Go packages in engine/) is licensed under the GNU Affero General Public License v3.0.
- You may use, study, modify, and distribute under AGPL-3.0 terms.
- If you run a modified Engine over a network (SaaS), you must publish your modifications under AGPL-3.0.
- You must retain all copyright and license notices when redistributing.
- A commercial license exempting AGPL copyleft is available — contact support@kitwork.org.
2.2 · SDK & Client Libraries — Apache-2.0
Official Kitwork SDKs and client libraries are licensed under the Apache License 2.0 — permissive, with no copyleft obligations.
- Use in any project, open-source or proprietary, without restrictions.
- Modify and redistribute, subject to Apache-2.0 attribution requirements.
- Patent license is granted automatically to all contributors.
2.3 · Commercial Platform License
Kitwork grants a non-exclusive, non-transferable license to use managed Platform features based on your subscription:
- 1 managed tenant
- Personal & prototype projects
- Self-host at no cost
- More than 1 cloud tenant
- Priority support or SLA
- Up to 10 managed tenants
- AutoSSL + priority support
- Commercial SaaS & client projects
- Exceed 10 cloud tenants
- Resell platform access
- Unlimited tenants
- All org members
- SLA, audit logs, team mgmt
- Share access outside org
- Resell as competing service
3. Definitions
- Licensee — the individual or organization that subscribed to or was granted a Kitwork license.
- Engine — open-source Kitwork runtime (compiler, VM, router, JIT CSS/icons, all Go packages in engine/). Licensed AGPL-3.0.
- SDK — official Kitwork client libraries and code generation tools. Licensed Apache-2.0.
- Platform — managed Kitwork Cloud: dashboard, AutoSSL, billing, team management.
- Tenant — an isolated application instance (a site folder) with its own sandboxed VM and per-tenant environment.
- End Product — any software, service, or website built using the Engine or Platform.
- Client — a third party receiving a deliverable from the Licensee.
- End User — the final user of an End Product.
4. Permitted & Prohibited Use
- Personal websites, blogs, portfolios
- Commercial SaaS products on Kitwork
- Custom apps built for paying clients
- Self-host the Engine on your own server
- Fork and modify the Engine (AGPL-3.0)
- Use Apache-2.0 SDKs in proprietary apps
- Write tutorials and articles about Kitwork
- Run a modified Engine as SaaS without releasing source (AGPL)
- Build a competing runtime replicating Kitwork's core VM
- Resell or sublicense Platform access
- Share account credentials across organizations
- Remove Kitwork copyright notices from Engine source
- Use the Kitwork brand in your product name without permission
- Circumvent rate limits or security controls
5. Intellectual Property
The Engine is copyright © 2024–2026 Kitwork authors, released under AGPL-3.0. SDKs are released under Apache-2.0. The Platform UI, documentation, brand assets (name, logo), and managed infrastructure are proprietary — all rights reserved.
You retain full ownership of the code, data, and configuration you write for your tenants. Kitwork makes no claim over your End Products or tenant content.
6. Liability
Kitwork's total liability for any claim is limited to the subscription fees you paid in the 12 months preceding the claim. For free-tier and AGPL self-hosted users, the Engine is provided strictly as-is with no warranty.
Kitwork is not liable for indirect, special, incidental, or consequential damages — including loss of data, revenue, or business interruption — even if Kitwork was advised of the possibility.
7. Refund Policy
You may request a full refund within 14 days of your initial payment, no questions asked. After 14 days, refunds are evaluated case-by-case.
Refunds do not apply to usage-based overage charges, consumed add-ons, or enterprise agreements. Contact support@kitwork.org with your account email and order reference.
8. Governing Law
This Agreement is governed by the laws of Vietnam. All disputes will be resolved in a competent court in Vietnam, unless a separate signed enterprise agreement specifies otherwise.
9. Changes to Terms
We may update these Terms at any time. Material changes will be announced on this page and — for paid subscribers — via email at least 14 days before taking effect. Continued use constitutes acceptance of the updated Terms.
10. Contact
- Email: support@kitwork.org
- GitHub: github.com/kitwork
- Founder: Huỳnh Nhân Quốc 🇻🇳
