Fastest free Sui RPC, live no-key endpoint latency
HTTP round-trip latency for sui_getLatestCheckpointSequenceNumber against every free, no-key public Sui RPC endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , OnFinality posts the lowest rpc latency at 104 ms (p50, 24h) on Fastest free Sui RPC, live no-key endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/sui-rpc.
Companion page
Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Sui is a Move-based L1 blockchain using the Mysticeti DAG-BFT consensus protocol, producing checkpoints every roughly 3 seconds with deterministic sub-second finality. Free public RPC endpoints are available without an API key from Mysten Labs, PublicNode, BlockVision, Suiet and OnFinality. Every provider was live-verified with consecutive keyless sui_getLatestCheckpointSequenceNumber probes at launch.
Methodology
Per-chain member of the RPC latency cluster, extended to Sui. We measure the round-trip latency of a single, identical JSON-RPC call (sui_getLatestCheckpointSequenceNumber) against every no-key public Sui endpoint that sustains continuous probing: 5 providers at launch, every 60 seconds, from us-east, eu-west and Singapore. The harness classifies every response (ok / http_err / jsonrpc_err / stale / timeout) with a Sui-scaled staleness gap (100 checkpoints, around 5 min). The cross-chain view lives on the parent rpc-capabilities benchmark; this page is the Sui-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Sui RPC right now?
OnFinality currently leads at 104 ms (sui_getLatestCheckpointSequenceNumber p50 over the last 24h), measured against 5 no-key providers probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples.
Which Sui RPCs work without an API key?
5 endpoints sustain continuous keyless probing at launch: Mysten Labs fullnode, PublicNode, BlockVision, Suiet and OnFinality. Every listed endpoint was live-verified with a sui_getLatestCheckpointSequenceNumber POST returning a parsable checkpoint number before inclusion.
Does the fastest Sui RPC change by region?
Often. Public infra concentrates in specific regions; a gateway that wins from Amsterdam can lose from Singapore by multiples. The region tabs at the top of the page re-scope every number to a single origin.
How is Sui RPC latency measured here, technically?
One identical sui_getLatestCheckpointSequenceNumber POST every 60 seconds against each provider from each of 3 regions, using the same plain HTTP client the rest of the RPC cluster uses. Wall-clock round-trip is recorded at millisecond precision; p50/p90/p99 are computed via Prometheus quantile_over_time over 24 hours. Best-effort measurements; p50 is the median, p90 the 90th percentile and p99 the 99th percentile of latency samples collected over the last 24 hours.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities