Here are some open-source gRPC frameworks written in Java: Primary OSS: gRPC-Java NamegRPC-Java Repositorygithub.com/grpc/grpc-java Stars12.1k (as of 2026-10) Forks4.0k (as of 2026-10) LicenseApache-2.0 PurposeOfficial gRPC implementation for Java CategoryRPC / Communication Framework / Microservices Architecture …

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