Sui Network Launched GraphQL Subscriptions
The platform replaced legacy polling with real-time data streaming to improve how applications interact with its blockchain.
Updated on Sept. 22, 2026 in Quantum Computing
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Sui has officially launched GraphQL subscriptions on its Mainnet, enabling developers to receive live data updates directly via WebSocket connections. This upgrade modernizes the network's data infrastructure by replacing the previous JSON-RPC system for blockchain queries.
Why it matters
The transition replaces inefficient polling mechanisms with real-time streaming, providing a unified interface for accessing both historical and live blockchain data. This architectural shift standardizes how developers monitor state changes across the Sui network.
The new system supports three core data types—checkpoints, transaction blocks, and events—delivered through persistent WebSocket connections. This replaces the legacy JSON-RPC system that was phased out on Foundation nodes in July 2026.
The players
Sui
A high-throughput layer-1 blockchain platform built on a scalable object-centric data model.
The details
The implementation allows applications to open a persistent WebSocket connection, a communication protocol that provides full-duplex channels over a single TCP connection, to receive updates as they occur. By moving away from polling, where a client repeatedly asks the server for new data, this system enables cursor-based backfilling that allows developers to resume data streams from specific points in the blockchain history.
Timeline
2025: GraphQL RPC entered the beta testing phase.
Early 2026: GraphQL RPC became generally available to developers.
July 2026: The legacy JSON-RPC system was officially phased out on Foundation nodes.
September 22, 2026: GraphQL subscriptions officially launched on Mainnet.
The Tech Race
Sui is moving away from the industry-standard JSON-RPC interface to adopt more efficient query languages for blockchain interaction. This follows a broader trend in decentralized infrastructure where platforms are prioritizing native GraphQL integration to improve developer experience and data accessibility.
Developers building on the Sui network can now access live data streams using the new endpoint to reduce latency in their applications. This change necessitates a migration for teams still relying on legacy JSON-RPC methods to ensure continued connectivity and data synchronization.
The takeaway
The move to GraphQL subscriptions highlights the industry's shift toward real-time event-driven architecture for decentralized data. Developers should evaluate their current query latency against the new WebSocket performance benchmarks to determine the optimal migration path.
Further reading
For more on the latest infrastructure developments, visit the /tech/quantum-computing/.
More information
Access the live data stream by connecting to the Sui Mainnet GraphQL endpoint.
Live Poll
Would you prefer using a single unified interface for managing both historical and live blockchain data?
