JetBrains/koog
Koog is a JVM 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
Built on Kotlin Multiplatform, Koog provides idiomatic type-safe APIs for defining agents with tool integration, graph-based workflows, and vector-backed memory/RAG. It features intelligent history compression to optimize token usage, agent persistence for state recovery, and LLM provider switching without losing conversation context. The framework integrates seamlessly with Spring Boot and Ktor, supports Model Context Protocol and Agent Client Protocol standards, and includes OpenTelemetry observability exporters for platforms like Langfuse and Weights & Biases.
3,802 stars. Actively maintained with 111 commits in the last 30 days.
Stars
3,802
Forks
334
Language
Kotlin
License
Apache-2.0
Category
Last pushed
Mar 13, 2026
Commits (30d)
111
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