Is Koog — Kotlin/JVM Agent Framework with MCP Tools free to use?

Yes. Koog — Kotlin/JVM Agent Framework with MCP Tools is freely available on TokRepo. Check the Source & Thanks section on the asset page for the specific open-source license.

How do I install Koog — Kotlin/JVM Agent Framework with MCP Tools?

Visit the asset page on TokRepo and click "Copy for agent" to get the installation instructions. Most assets can be installed with a single command.

WorkflowsMay 14, 2026·2 min read

Koog — Kotlin/JVM Agent Framework with MCP Tools

Name: Koog — Kotlin/JVM Agent Framework with MCP Tools
Author: Agent Toolkit

A JVM agent framework for predictable, fault-tolerant agents, with MCP tool integration; verified 4187★, pushed 2026-05-14.

Agent Toolkit · Community

Agent ready

This asset can be read and installed directly by agents

TokRepo exposes a universal CLI command, install contract, metadata JSON, adapter-aware plan, and raw content links so agents can judge fit, risk, and next actions.

Native · 94/100Policy: allow

Agent surface

Any MCP/CLI agent

Kind

Workflow

Install

Gradle|Maven

Trust

Trust: Established

Entrypoint

ai.koog:koog-agents:0.7.3

Universal CLI install command

npx tokrepo install 63ead63e-3dce-51ee-91c1-3440b77c043d

install contract metadata JSON adapter plan raw content

Intro

A JVM agent framework for predictable, fault-tolerant agents, with MCP tool integration; verified 4187★, pushed 2026-05-14.

Best for: JVM teams building production-grade agents who want typed, structured integrations

Works with: Kotlin/Java builds (Gradle/Maven); integrates MCP tools per README overview

Setup time: 12-25 minutes

Key facts (verified)

GitHub: 4187 stars · 403 forks · pushed 2026-05-14.
License: Apache-2.0 · owner avatar + repo URL verified via GitHub API.
README-backed entrypoint: ai.koog:koog-agents:0.7.3.

Main

Start as a library, not a template: add Koog via Maven/Gradle, then grow your agent surface incrementally.
Use MCP as the boundary for tools: keep tool definitions structured so your agent logic stays testable.
Prefer predictable control flow: treat retries/timeouts as first-class, especially when adding external tools.
Document the setup in your repo: dependency + minimal example beats a long, vague architecture note for onboarding.

README (excerpt)

Koog

Build status:

Useful links:

🙏

Source & Thanks

Created by JetBrains. Licensed under Apache-2.0.

JetBrains/koog — ⭐ 4187

Thanks to the upstream maintainers and contributors for publishing this work under an open license.

Discussion

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