Skip to content
Agentmart
Submit a tool

Koog

Kotlin and Java framework for AI agents with tools, graph workflows, MCP, streaming and multiplatform targets.

Harness by JetBrains

IndexedApache-2.0★ 4,634
Write a review

Chalk Labs

Need help deploying Koog?

Chalk Labs sets up agents like this inside real teams: connected to your tools, tested on your data, with a human in the loop where it matters.

Book a call

Install

From the package registry. Read the repository before you give any tool access to your data.

No install instructions from the source yet. Check the repository for setup steps.

Get the weekly diff

The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.

We use your email only for this newsletter. Privacy

About

Koog is a Kotlin framework for building AI agents with an idiomatic Kotlin DSL and fluent builder-style Java APIs. Agents can use tools and MCP tools, run graph-based workflows, keep long-term memory backed by vector embeddings and RAG, and stream responses. It works with Google, OpenAI, Anthropic, DeepSeek, OpenRouter, Ollama and Bedrock models, exports traces through OpenTelemetry, and supports the JVM, JS, WasmJS and iOS targets.

Use cases: agent-orchestration, agent-memory

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Fact sheet

Languages
Kotlin, JavaREADME
Packages
ai.koog:koog-agents (maven)README
Orchestration
graphREADME
MCP support
Built inREADME
Streaming
YesREADME
Memory
long-term, vectorREADME
Observability
OpenTelemetry, W&B Weave, LangfuseREADME
Deploys to
jvm, js, wasmjs, iosREADME
Model providers
google, openai, anthropic, deepseek, openrouter, ollama, aws-bedrockREADME
Maturity
Stablegithub.com

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

Compare and alternatives

    Featured in

    Signals

    Stars
    4,634
    Forks
    495
    Open issues
    115
    Last commit
    Oct 13, 2026 (17 days ago)
    Last release
    Sep 24, 2026 (1 month ago)

    From GitHub (fetched Oct 24, 2026).

    Details

    Packages
    maven ai.koog:koog-agents
    License
    Apache-2.0
    Repository
    github.com/JetBrains/koog
    Website
    docs.koog.ai/
    Docs
    docs.koog.ai/
    First seen
    Oct 24, 2026
    Last checked
    Oct 24, 2026
    Source
    READMEWebsiteDocsgithub-graphql

    More from JetBrains

    Done for you

    Rather not set it up yourself?

    Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.

    See how we build AI agents →Read the case studies

    Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.

    launches shipped
    50+
    launches shipped
    media placements
    500+
    media placements
    founders on every account
    2
    founders on every account

    Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block

    Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.

    Get Koog running in your business

    Tell us what you want to automate. A founder replies within one working day with a plan, not a pitch deck.

    Goes to the Chalk Labs founders, not the newsletter. Privacy

    Need help deploying Koog?

    CallGet help
    Cite this page

    Koog. Agent Mart. https://agentmart.dev/harnesses/koog (last updated 2026-10-24)