ADK-A2A java library published on maven repositories.

[ucpdh23]

I'm building a distributed agentic system using ADK and A2A.

My solution is composed of two components:

• A Python implementation with several ADK agents, where some of them are exposed through A2A.
• A Java implementation of an ADK agent that connects to and consumes the Python agents.

I’d like to connect both components using A2A — the Java agent consuming the Python agents through A2A.
However, I can’t find the Maven dependency for the ADK A2A Java library; it doesn’t seem to be available in Maven repositories.

Could you please tell me if I’m doing something wrong, or when you expect to publish the Java ADK A2A library?

Thanks!

[Poggecci]

We'll be publishing it in our upcoming 0.3.1 release this week!

[tomekpanek]

By ADK-A2A library, do you mean A2A folder? Before publishing it, I would consider restructuring some folders. Current structure of A2A folder, as well as new examples in contrib folder are hard to consume by IDE. I did a bit more on branch and pr in my fork repo but can prepare pr including only minimal changes. Any chance we could introduce that change to main branch?

[hemasekhar-p]

Hi @ucpdh23, thank you for bringing this to our attention. This has been implemented and published as part of the 0.4.0 version. Using this version or newer allows Java ADK agents to communicate with other agents including Python ADK agents via the A2A protocol. Could you please use the following dependency to work with A2A?

    <dependency>
	   <groupId>com.google.adk</groupId>
	   <artifactId>google-adk-a2a</artifactId>
	   <version>0.4.0</version>
	</dependency>