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A2A Java SDK
The official Java SDK for the Agent2Agent (A2A) protocol.
Day 43 since launch · Launched 25 August 2026
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What is A2A Java SDK?
A2A Java SDK is the official Java implementation of the Agent2Agent (A2A) protocol, which lets AI agents built on different frameworks discover and talk to each other.
Pros
- Official SDK from the A2A project
- Apache-2.0 licensed
- Fits Java and enterprise stacks
Cons
- Only useful if you build agents in Java
- The A2A protocol is still maturing
Who should use A2A Java SDK
Java developers building interoperable AI agents.
Who may not need it
Developers who do not use Java.
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