Fastest free Cronos RPC, live no-key endpoint latency
HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Cronos RPC endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , Cronos posts the lowest rpc latency at 31 ms (p50, 24h) on Fastest free Cronos RPC, live no-key endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/cronos-rpc.
Companion page
Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Cronos fields 3 no-key providers and encodes an integration trap from our sweep: PublicNode serves the chain at `cronos-evm-rpc.publicnode.com` (the intuitive `cronos-rpc` subdomain resolves but returns non-JSON). Tenderly's public gateway does not reach Cronos, making this one of the few pages in the Arbitrum after its keyless per-IP daily budget proved too tight for continuous multi-chain probing. Probes every 60 seconds from three regions with the cluster's anti-cache payload.
Methodology
Per-chain member of the RPC latency cluster. We measure the round-trip latency of a single, identical RPC call (`eth_getBlockByNumber`) against every no-key public Cronos endpoint that sustains continuous probing, 3 providers, every 60 seconds, from us-east, eu-west and Singapore. The harness also classifies every response (ok / http_err / jsonrpc_err / stale / timeout) and audits archive depth every 5 minutes, so the leaderboard rewards sustained, honest availability rather than a fast error message. The cross-chain view lives on the parent rpc-capabilities benchmark; this page is the Cronos-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Cronos RPC right now?
Cronos currently leads at 31 ms (`eth_getBlockByNumber` p50 over the last 24h), measured against 3 no-key providers probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples, so the answer on this page is the answer right now, not a quarterly snapshot. Use the region tabs to see the leader from the origin closest to your deployment.
Which Cronos RPCs work without an API key?
Three endpoints sustain continuous keyless probing: PublicNode (at `cronos-evm-rpc.publicnode.com`, note the non-intuitive subdomain), dRPC, and the chain-linked public endpoint. Tenderly's public gateway does not reach Cronos, and 1RPC was descoped cluster-wide to Ethereum and Arbitrum because its keyless per-IP daily budget cannot sustain continuous multi-chain probing. Every listed endpoint was live-verified before inclusion.
Does the fastest Cronos RPC change by region?
Frequently. The headline number averages three probe origins (us-east, eu-west, Singapore), but per-region leaders regularly diverge, a gateway that wins from Virginia can lose from Singapore by multiples. The region tabs at the top of the page re-scope every number on the page to a single origin; pick the one closest to where your requests actually originate.
How is Cronos RPC latency measured here?
One identical JSON-RPC POST (`eth_getBlockByNumber`) every 60 seconds against each provider from each of 3 regions, with the same plain HTTP client. Wall-clock round-trip is recorded at millisecond precision; p50/p90/p99 are computed via Prometheus `quantile_over_time` over 24 hours. Responses are classified (`ok` / `http_err` / `jsonrpc_err` / `stale` / `timeout`) so an endpoint stuck on an old head or returning errors behind HTTP 200 is never ranked as fastest. The harness is open source and every number on this page is a public Prometheus query you can run yourself.
Why isn't MeowRPC listed on Cronos?
We tried it. MeowRPC's long-tail endpoints no longer resolve (DNS gone), and the provider appears defunct outside a few legacy chains, so it failed the live verification, eth_chainId match plus sustained probing, that gates admission to this cluster. Directories still listing it are copying stale metadata; this bench only ranks endpoints that answer.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities