What you'll learn: The license structure across Kyvvu's packages.
kyvvu-sdk
Apache License 2.0
kyvvu-sdk/LICENSE
kyvvu-engine
Business Source License 1.1 (BSL 1.1)
kyvvu-engine/LICENSE
kyvvu-api
Proprietary
kyvvu-api/LICENSE.md
Kyvvu Dashboard
Proprietary
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The SDK is permissively licensed. You can use, modify, and distribute it freely.
The engine is source-available under the Business Source License 1.1:
Free use is permitted for development, testing, research, evaluation, and personal non-commercial purposes.
Production use requires a Kyvvu commercial subscription or a separate license agreement with Kyvvu B.V.
Each release converts to Apache License 2.0 four years after its publication date.
The SDK depends on the engine at runtime. The SDK's permissive license does not extend to the engine. Bundling, vendoring, or depending on the SDK does not grant rights to the engine beyond what BSL 1.1 permits.
The API and dashboard are proprietary software. Copyright 2025-2026 Kyvvu B.V. All rights reserved.
The atomic behavior definitions (step types, scopes, verbs, and the Behavior schema) are part of kyvvu-engine and are governed by BSL 1.1.
Kyvvu meters usage by active engine instance-hours. One instance-hour is one KyvvuRunner (or kyvvu serve process) active for one hour.
Rate
EUR 0.05 per instance-hour
Free tier
1,000 instance-hours per month
Kyvvu is currently available for evaluation at no cost — metered billing will be introduced in a future release. While in beta, we reserve the right to cap user registration or limit policy retrieval and agent registration.
For production use of the engine, commercial subscriptions, or licensing inquiries:
licensing@kyvvu.com
Installation — install the SDK
Changelog — version history
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