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 and provides proven solutions for complex LLM and AI problems
Koog is a Kotlin Multiplatform framework from JetBrains for building AI agents that run on JVM, Android, iOS, JavaScript, and WasmJS targets. Developers define agent behavior using a type-safe Kotlin DSL, compose complex workflows through graph-based pipelines, and attach custom tools that reach external systems and APIs. It connects to Anthropic's Claude alongside Google, OpenAI, DeepSeek, OpenRouter, Ollama, and Bedrock through a pluggable provider model, and supports the Model Context Protocol so agents can consume MCP tools directly. Built-in agent persistence lets execution resume from specific checkpoints after failures, and an intelligent history compression layer trims token usage during long-running conversations without dropping context. Spring Boot and Ktor integrations make embedding agents into existing JVM services straightforward, while OpenTelemetry exporters feed observability data to providers such as Weights and Biases Weave and Langfuse. The framework targets JVM backend engineers and Kotlin Multiplatform developers who need reproducible, production-grade agent infrastructure without leaving the JVM ecosystem.
- ✓Open-source license (Apache-2.0)
- ✓Actively maintained (<30d)
- ✓Healthy fork ratio
- ✓Clear description
- ✓Topics declared
- ✓Mature repo (>1y old)
git clone https://github.com/JetBrains/koog && cp koog/*.md ~/.claude/agents/2 items in this repository
Use when the user asks to add Java tabs/examples to mkdocs docs that already have Kotlin examples (files under docs/docs/**.md using === "Kotlin" / Knit INCLUDE+SUFFIX blocks). Handles mkdocs-material tabs, Knit directives, @JavaAPI bridge methods, and JVM factory classes.
Subagents overview
What people ask about koog
What is JetBrains/koog?
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JetBrains/koog is subagents for the Claude AI ecosystem. 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 and provides proven solutions for complex LLM and AI problems It has 4.3k GitHub stars and was last updated today.
How do I install koog?
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You can install koog by cloning the repository (https://github.com/JetBrains/koog) or following the README instructions on GitHub. ClaudeWave also provides quick install blocks on this page.
Is JetBrains/koog safe to use?
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Our security agent has analyzed JetBrains/koog and assigned a Trust Score of 100/100 (tier: Verified). See the full breakdown of passed checks and flags on this page.
Who maintains JetBrains/koog?
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JetBrains/koog is maintained by JetBrains. The last recorded GitHub activity is from today, with 141 open issues.
Are there alternatives to koog?
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Yes. On ClaudeWave you can browse similar subagents at /categories/agents, sorted by popularity or recent activity.
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