JetBrains Koog Comes to Java: Enterprise JVM-Native AI Agent Framework Gets Idiomatic Java API

JetBrains AI Blog·high signal

JetBrains expanded its Koog agent framework to Java with a fluent builder-style Java API alongside the existing Kotlin DSL, targeting enterprise production agent development. The release includes Spring Boot integration, support for OpenAI/Anthropic/Google/DeepSeek/Ollama providers, fault-tolerant persistence with recovery, and built-in OpenTelemetry observability via Langfuse and W&B Weave. Multiple workflow strategies (functional, graph-based, planning) make it the first JVM-native framework purpose-built for complex multi-step agentic workflows — significant for the Java enterprise ecosystem that has been underserved by Python-first frameworks.