GitHub - google/adk-java: An open-source, code-first Java toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
Agent Development Kit (ADK) for Java
An open-source, code-first Java toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
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Agent Development Kit (ADK) is designed for developers seeking fine-grained control and flexibility when building advanced AI agents that are tightly integrated with services in Google Cloud. It allows you to define agent behavior, orchestration, and tool use directly in code, enabling robust debugging, versioning, and deployment anywhere – from your laptop to the cloud.
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✨ Key Features
Rich Tool Ecosystem: Utilize pre-built tools, custom functions, OpenAPI specs, or integrate existing tools to give agents diverse capabilities, all for tight integration with the Google ecosystem.
Code-First Development: Define agent logic, tools, and orchestration directly in Java for ultimate flexibility, testability, and versioning.
Modular Multi-Agent Systems: Design scalable applications by composing multiple specialized agents into flexible hierarchies.
🚀 Installation
If you're using Maven, add the following to your dependencies:
<dependency> <groupId>com.google.adk</groupId> <artifactId>google-adk</artifactId> <version>1.9.0</version> </dependency> <!-- Dev UI --> <dependency> <groupId>com.google.adk</groupId> <artifactId>google-adk-dev</artifactId> <version>1.9.0</version> </dependency>To instead use an unreleased version, you could use
https://jitpack.io/#google/adk-java/
; see
https://github.com/enola-dev/LearningADK#jitpack
for an example illustrating this.
📚 Documentation
For building, evaluating, and deploying agents by follow the Java documentation & samples:
🏁 Feature Highlight
Same Features & Familiar Interface As Python ADK:
importcom.google.adk.agents.LlmAgent; importcom.google.adk.tools.GoogleSearchTool; LlmAgentrootAgent = LlmAgent.builder() .name("search_assistant") .description("An assistant that can search the web.") .model("gemini-2.0-flash") // Or your preferred models .instruction("You are a helpful assistant. Answer user questions using Google Search when needed.") .tools(newGoogleSearchTool()) .build();Development UI
Same as the beloved Python Development UI. A built-in development UI to help you test, evaluate, debug, and showcase your agent(s).
Evaluate Agents
Coming soon...
🤖 A2A and ADK integration
For remote agent-to-agent communication, ADK integrates with the
. See a2a/README.md for end-to-end setup instructions and sample commands.
🤝 Contributing
We welcome contributions from the community! Whether it's bug reports, feature requests, documentation improvements, or code contributions, please see our
to get started.
📄 License
This project is licensed under the Apache 2.0 License - see the
file for details.
Preview
This feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
. Pre-GA features are available "as is" and might have limited support. For more information, see the
.
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Happy Agent Building!