Run Java applications that communicate with other AI agents using the Agent2Agent protocol.
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Free · no card · unsubscribe anytimeOfficial Java SDK for the Agent2Agent (A2A) Protocol
a2a-java has 481 stars on GitHub. It has been forked 169 times. a2a-java is written mainly in Java. It has been in active development since 2025. a2a-java is available under the Apache-2.0 license. Its main topics are a2a, a2a-client, a2a-server, agent2agent.
What is a2a-java?
Official Java SDK for the Agent2Agent (A2A) Protocol
Is a2a-java open source?
a2a-java is an open-source project. It is released under the Apache-2.0 license.
Is a2a-java free?
Yes. a2a-java is free and open source — you can use, modify and self-host it.
What license does a2a-java use?
a2a-java is available under the Apache-2.0 license.
What language is a2a-java written in?
a2a-java is written mainly in Java.
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