Fastest free Aurora RPC, live no-key endpoint latency
HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Aurora RPC endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , Aurora Labs leads rpc latency at 186 ms (p50, 24h) on Fastest free Aurora RPC, live no-key endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/aurora-rpc.
Companion page
Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Aurora is the EVM runtime on NEAR Protocol (chain 1313161554), exposing full Ethereum tooling to NEAR's sharded execution environment. The official endpoint (`mainnet.aurora.dev`) is operated by Aurora Labs and is the only keyless endpoint sustaining continuous probing. Ankr and dRPC require an API key for Aurora and have been removed.
Methodology
Per-chain member of the RPC latency cluster, extended to Aurora. We measure the round-trip latency of a single, identical RPC call (`eth_getBlockByNumber`) against the no-key public Aurora endpoint that sustains continuous probing (1 provider: Aurora Labs official), 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 Aurora-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Aurora RPC right now?
Aurora Labs currently leads at 186 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 Aurora RPCs work without an API key?
1 endpoint sustains continuous keyless probing: Aurora Official (mainnet.aurora.dev). Ankr returns 403 (API key required) and dRPC returns 403 (API key required) for Aurora.
Does the fastest Aurora 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 Aurora 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