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Koog

Koog is a JetBrains framework for building AI agents in Kotlin and Java, with tools, graph workflows, memory, retrieval, tracing, and integrations for JVM application stacks.

The repository and docs describe Koog as a Kotlin-based agent framework with Kotlin and Java APIs, Kotlin Multiplatform targets, multiple LLM providers, MCP and Agent Client Protocol support, RAG, long-term memory, agent persistence, OpenTelemetry, Spring Boot, Ktor, streaming, and example projects. Use this as a first read, not a recommendation. Open the original project before trusting details like terms, limits, privacy, cost, setup, or safety.

What it is

A Kotlin and Java agent framework

Koog sits in the developer framework layer for AI agents, with public materials aimed at building agent behavior directly into JVM, Kotlin Multiplatform, and application-backend projects.

Why readers may notice it

Agent patterns for JVM teams

The source materials cover practical agent-building pieces that JVM developers may want to compare: tools, prompts, graph strategies, planner agents, memory, persistence, retrieval, streaming, tracing, and framework integrations.

Availability

Repository, docs, API reference, and packages

Readers can inspect the GitHub repository, Koog documentation, API reference, examples, Gradle and Maven setup snippets, and docs for agent, tool, memory, protocol, and observability features.

Why it matters

Why readers may notice it

A lot of agent tooling is Python or TypeScript first. Koog gives readers a Kotlin/JVM-centered project to inspect when comparing how agents can be structured inside backend services, Android or iOS targets, browser-adjacent targets, and existing Java or Kotlin applications.

Reporting note

What the source materials list

The README and docs list Kotlin and Java APIs, Kotlin Multiplatform targets, OpenAI, Anthropic, Google, DeepSeek, OpenRouter, Ollama, and Bedrock providers, MCP tools, Agent Client Protocol, A2A protocol docs, vector embeddings, RAG, long-term memory, agent persistence, structured output, streaming, OpenTelemetry, Spring Boot, and Ktor.

Before using

What readers may want to review

Whether the target project is actually Kotlin, Java, JVM, Android, iOS, JS, or WasmJS enough to benefit from Koog's stack choice.

Which LLM providers, API keys, local runtimes, tools, retrieval stores, and memory providers would be connected to an agent.

How persistence, tracing, OpenTelemetry exporters, protocol integrations, and workflow state behave in the intended application environment.

Current requirements in the official docs, including JDK, Kotlin, Gradle, Maven, and package-version notes.

Reader fit

Who may find it relevant

Developers comparing Kotlin or Java frameworks for AI agents.

Teams building agent features inside JVM services, Spring Boot apps, Ktor servers, or Kotlin Multiplatform projects.

Readers tracking MCP, A2A, ACP, memory, RAG, tracing, and structured agent workflows across different agent ecosystems.

Less relevant for readers who want a no-code agent builder, a model checkpoint, or a finished consumer assistant.

Editorial note

Why it is included here

Koog is useful to list because it shows how the agent-framework space is spreading beyond Python and TypeScript into Kotlin, Java, JVM services, and multiplatform application development.

Source links

Original materials

Reader note

Before relying on this entry

LifeHubber lists entries to help readers inspect AI projects, not to endorse them or prove they are safe, suitable, accurate, maintained, or right for a specific use. We do not verify every entry in depth. Before relying on anything listed, review the original materials, terms, privacy practices, limits, and risks that matter for your situation.

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