Sui Blockchain Launches Full Beta of gRPC Support
Sui introduces full beta of gRPC support, enhancing data access, real-time performance, and developer tooling.
The Sui Blockchain has officially released the full beta version of gRPC support for its Full Nodes, marking a pivotal upgrade in the network’s approach to data access and developer experience. This milestone reflects Sui’s long-term vision of evolving blockchain infrastructure to meet the performance and scalability demands of next-generation decentralized applications.
Accessing blockchain data on Sui just got easier.
— Sui (@SuiNetwork) July 24, 2025
We’ve launched full beta support for gRPC - a modern, high-speed API protocol.
Built for real-time streaming and typed access in Rust, Go, TypeScript & more.
It’s the future of Sui data - and will replace JSON-RPC as the… pic.twitter.com/gmJP1j7Naj
From JSON-RPC to gRPC: A Strategic Evolution
Traditionally, many blockchains—including Sui—have relied on JSON-RPC for client-node communication. While functional, JSON-RPC poses limitations in type safety, extensibility, and data serialization efficiency. Sui’s transition to gRPC (gRPC Remote Procedure Call) addresses these challenges head-on.
gRPC is a modern, high-performance protocol used widely across distributed systems. Built on HTTP/2 and utilizing Protocol Buffers (Protobuf) for data serialization, it offers a more compact, strongly typed, and language-agnostic interface for building applications. With support for automatic client generation in multiple programming languages, gRPC greatly simplifies developer workflows and enhances integration possibilities.
Developer-Focused API Services
The beta release introduces a robust suite of services tailored to blockchain developers, including:
- MovePackageService – for interacting with Move packages and modules.
- TransactionExecutionService – enabling advanced transaction simulation and execution workflows.
- SignatureVerificationService – providing tools for off-chain signature validation.
These services are designed to streamline backend development for decentralized applications (dApps), wallets, explorers, and infrastructure providers.
Real-Time Capabilities via SubscriptionService
A standout feature of this release is the SubscriptionService, which offers server-side streaming APIs. Unlike polling-based approaches common with JSON-RPC, SubscriptionService allows clients to subscribe to real-time on-chain events—such as transactions, object changes, or validator actions—with minimal latency.
This functionality is especially valuable for exchanges, indexers, and analytic platforms where timely updates are critical. It enables the development of reactive architectures that respond instantly to on-chain changes without unnecessary bandwidth or CPU overhead.
Preparing for gRPC as the Canonical Standard
While JSON-RPC remains operational for now, the Sui Foundation has indicated that gRPC is set to become the canonical API interface for Full Nodes. This transition is part of a broader infrastructure shift designed to support scalable, low-latency applications.
To aid this migration, Sui has published comprehensive documentation and proto files on GitHub, allowing developers to begin integrating gRPC endpoints into their systems. Early adoption is encouraged, particularly for teams focused on building performance-sensitive applications.
A Foundation for Future Infrastructure
Beyond gRPC, this release signals deeper changes to how data is structured and served on Sui. The Foundation’s roadmap includes:
- A clean separation between raw and derived data services
- Native support for both batch and streaming APIs
- The development of a modular, scalable indexer framework
These elements form the backbone of a next-generation data layer that can support a diverse range of Web3 use cases—from real-time analytics and MEV-aware protocols to AI agents and dynamic on-chain games.
Conclusion
The beta launch of gRPC support represents more than a technical upgrade—it’s a fundamental rethinking of how blockchain data should be accessed and delivered. With enhanced efficiency, real-time capabilities, and broad developer tooling, gRPC positions Sui to support the next wave of dApps with infrastructure built for scale and speed.
As Web3 applications become increasingly sophisticated, gRPC on Sui offers developers a modern foundation for building responsive, data-rich, and user-centric blockchain experiences.
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