Sui Network Launched GraphQL Subscriptions
The platform has introduced real-time data streaming to replace its legacy JSON-RPC system for blockchain developers.
Updated on Sept. 22, 2026 in Quantum Computing
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The Sui network has officially deployed GraphQL subscriptions on its Mainnet to enable real-time data streaming via WebSocket connections. This upgrade modernizes how developers access blockchain information by replacing inefficient polling methods with a unified interface.
Why it matters
By shifting from legacy JSON-RPC to a GraphQL-based system, the network allows applications to receive live updates on transactions and events immediately. This change simplifies data integration, as it provides a single stream for both historical and current blockchain information.
The new system utilizes the endpoint wss://sui-mainnet.mystenlabs.com/graphql to stream three core data types, including checkpoints, transaction blocks, and events. It supports persistent WebSocket connections and cursor-based backfilling.
The players
Sui
Sui is a decentralized blockchain network designed to support high-throughput transactions and real-time data accessibility.
The details
Developers can now open persistent connections to monitor the network, utilizing cursor-based backfilling to resume streams from specific points in time. This architecture replaces the older polling-heavy JSON-RPC system previously used by foundation nodes.
Timeline
GraphQL RPC entered its beta phase in 2025.
The system became generally available in early 2026.
The legacy JSON-RPC system was phased out on Foundation nodes in July 2026.
GraphQL subscriptions officially launched on Mainnet on September 22, 2026.
The Tech Race
The transition from JSON-RPC to GraphQL aligns with broader industry efforts to improve data efficiency by replacing traditional request-response polling with persistent, real-time streams. This shift positions the network to better handle the growing demand for instant data in decentralized applications.
Developers and application builders can now reduce the technical overhead of their projects by eliminating the need for complex polling loops to fetch data. This results in more responsive user experiences for end-users relying on apps built on the network.
The takeaway
The implementation of GraphQL subscriptions highlights the critical need for efficient, real-time data access in modern decentralized ecosystems. Developers should prioritize upgrading their integration methods to utilize cursor-based backfilling to maintain seamless data continuity.
Further reading
For more information on the evolving standards for blockchain connectivity, visit the Quantum Computing section.
More information
Connect directly to the Sui Mainnet GraphQL endpoint to begin testing the new real-time subscription capabilities.
Live Poll
Would you prefer using a single unified interface for managing both historical and live blockchain data?
