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Java SDK A2A Spec

Java SDK for the Agent2Agent Protocol (A2A) - Spec

Artifacts using Java SDK A2A Spec (29)
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11.Java SDK A2A Client Transport: SPI7 usages

io.github.a2asdk » a2a-java-sdk-client-transport-spi Apache

Java SDK for the Agent2Agent Protocol (A2A) - Client Transport SPI
Last Release on Nov 20, 2025

12.Google ADK A2A Integration5 usages

com.google.adk » google-adk-a2a Apache

Google Agent Development Kit (ADK) for Java
Last Release on Jul 8, 2026

13.Java SDK A2A Client Transport: GRPC5 usages

io.github.a2asdk » a2a-java-sdk-client-transport-grpc Apache

Java SDK for the Agent2Agent Protocol (A2A) - gRPC Client Transport
Last Release on Nov 20, 2025

14.Java SDK A2A Client Transport: JSON+HTTP/REST5 usages

io.github.a2asdk » a2a-java-sdk-client-transport-rest Apache

Java SDK for the Agent2Agent Protocol (A2A) - JSON+HTTP/REST Client Transport
Last Release on Nov 20, 2025

15.Google ADK A2A Integration4 usages

com.atlassian.adk » google-adk-a2a Apache

Google ADK A2A Integration
Last Release on May 26, 2026

16.Java A2A Reference Server4 usages

io.github.a2asdk » a2a-java-reference-server Apache

Java SDK for the Agent2Agent Protocol (A2A) - A2A Reference Server (based on Quarkus)
Last Release on Jul 21, 2025

17.Spring A2A Server3 usages

io.github.goodfriend2ks » spring-a2a-server Apache

Server implementation for Spring A2A protocol support
Last Release on Feb 12, 2026

18.Java A2A Extras: Replicated Queue Manager Tests Multi Instance Common2 usages

io.github.a2asdk » a2a-java-queue-manager-replicated-tests-multi-instance-common Apache

Java A2A Extras: Replicated Queue Manager Tests Multi Instance Common
Last Release on Nov 20, 2025

19.Connector Agentic AI2 usages

io.camunda.connector » connector-agentic-ai

Agentic AI connector
Last Release on Jun 26, 2026

20.Java A2A SDK For Quarkus2 usages

io.github.a2asdk » a2a-java-sdk-server-quarkus Apache

Java SDK for the Agent2Agent Protocol (A2A) - SDK - Quarkus
Last Release on Jul 8, 2025