Fastest free Oasis Sapphire RPC, live no-key endpoint latency
HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Oasis Sapphire RPC endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , Oasis Foundation leads rpc latency at 203 ms (p50, 24h) on Fastest free Oasis Sapphire RPC, live no-key endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/oasis-sapphire-rpc.
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Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Oasis Sapphire (chain 23294) is the only production confidential EVM, running smart contracts inside Intel SGX trusted execution environments to keep state and inputs private by default. It is part of the Oasis Network, ROSE gas token bridged from the consensus layer. The Oasis Foundation's sapphire.oasis.io provides keyless access probed every 60 seconds from three regions.
Methodology
Per-chain member of the RPC latency cluster, extended to Oasis Sapphire. We measure the round-trip latency of a single, identical RPC call (`eth_getBlockByNumber`) against every no-key public Oasis Sapphire endpoint that sustains continuous probing, 1 provider at launch, every 60 seconds, from us-east, eu-west and Singapore. The harness classifies every response (ok / http_err / jsonrpc_err / stale / timeout) so the leaderboard rewards sustained availability rather than fast error messages. The cross-chain view lives on the parent `rpc-capabilities` benchmark; this page is the Oasis Sapphire-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Oasis Sapphire RPC right now?
Oasis Foundation currently leads at 203 ms (`eth_getBlockByNumber` p50 over the last 24h), measured against 1 no-key provider probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples.
Which Oasis Sapphire RPCs work without an API key?
1 endpoint sustains continuous keyless probing at launch: Oasis Foundation. Every listed endpoint was live-verified before inclusion.
Does the fastest Oasis Sapphire RPC change by region?
Often. The region tabs at the top of the page re-scope every number to a single origin; pick the one closest to where your requests originate.
How is Oasis Sapphire RPC latency measured here?
One identical JSON-RPC POST (`eth_getBlockByNumber`) every 60 seconds against each provider from each of 3 regions. Responses are classified so an endpoint stuck on an old head or returning errors is never ranked as fastest.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities