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koog
Kotlin

koog

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise

by JetBrains · GitHub
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agentframeworkagentic-aiagentsApache-2.0KotlinSelf-hostable
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Create and run AI agents that can communicate and manage tasks across different platforms using Kotlin and Java.

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5k4k
2026-07-072026-08-31
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📄 About

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise

koog has 4.5k stars on GitHub. It has been forked 466 times. koog is written mainly in Kotlin. It has been in active development since 2025. koog is available under the Apache-2.0 license. Its main topics are agentframework, agentic-ai, agents, ai.

Frequently asked questions

What is koog?

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise

Is koog open source?

koog is an open-source project. It is released under the Apache-2.0 license.

Is koog free?

Yes. koog is free and open source — you can use, modify and self-host it.

What license does koog use?

koog is available under the Apache-2.0 license.

What language is koog written in?

koog is written mainly in Kotlin.

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