{"slug":"cronos-rpc","title":"Fastest free Cronos RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_blockNumber against every free, no-key public Cronos RPC endpoint, audited every 15 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"value":15.3333,"leader":{"name":"dRPC","slug":"drpc","value":15.3333},"rankings":[{"name":"dRPC","slug":"drpc","ms":{"p50":15.3333,"p90":26.6667,"p99":71,"mean":19.4981},"successRate":94.953,"sampleSize":8620.61},{"name":"Cronos","slug":"cronos-official","ms":{"p50":24.6667,"p90":37,"p99":60.1333,"mean":27.4229},"successRate":99.9884,"sampleSize":8623.61},{"name":"PublicNode","slug":"publicnode","ms":{"p50":79,"p90":84.3333,"p99":165.28,"mean":82.006},"successRate":100,"sampleSize":8623.61},{"name":"1RPC","slug":"1rpc","ms":{"p50":470.333,"p90":3575.7,"p99":5988.31,"mean":1147.12},"successRate":1.7171599999999998,"sampleSize":8620.61}],"sparkline":[19.6841,17.7754,16.1744,15.7441,14.5203,13.6689,12.1025,11.5201,12.2098,12.3517,12.8277,13.0482,12.8141,13.5774,13.3588,13.688,13.2196,13.1877,13.0632,13.4111,13.733,14.3141,14.6539,14.8612,15.0315,16.0322,17.2062,18.3855,19.0105,18.2989,17.0077,15.4333,14.8846,15.1384,17.2177,18.3152,18.7335,17.0379,16.3809,15.8659,17.1442,17.7874,18.6405,17.7381,17.3454,17.5518,17.8971,19.0821,18.9855,19.6201,19.9527,20.4247,21.1866,21.7471,22.8072,23.8058,23.1877,25.9942,27.0235,29.7028,27.6922,28.112,26.639,28.2203,26.1783,26.0948,25.2511,25.0494,25.0326,51.8166,51.8856,50.0063,22.4361],"sampleSize":34488.44,"asOf":"2026-07-04T17:54:04.883Z","headline":"dRPC leads rpc latency at 15 ms (p50, 24h) on Fastest free Cronos RPC, live no-key endpoint latency.","quote":"dRPC leads rpc latency at 15 ms (p50, 24h) on Fastest free Cronos RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/cronos-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Cronos RPC, live no-key endpoint latency\". Retrieved 2026-07-04. https://openchainbench.com/benchmarks/cronos-rpc","bibtex":"@misc{ocb_cronos_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Cronos RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/cronos-rpc},\n  note   = {Retrieved 2026-07-04}\n}","apa":"OpenChainBench. (2026). Fastest free Cronos RPC, live no-key endpoint latency. Retrieved July 4, 2026, from https://openchainbench.com/benchmarks/cronos-rpc"},"pageUrl":"https://openchainbench.com/benchmarks/cronos-rpc","ogImage":"https://openchainbench.com/api/og/cronos-rpc","source":"https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities","methodology":["Cadence: every 15 seconds per provider, from each of 3 probe regions (us-east Virginia, eu-west Amsterdam, sgp Singapore). Headline p50/p90/p99 aggregate across all 3 regions via Prometheus `avg(quantile_over_time(...))`; per-region breakdowns are first-class on this page via the region tabs.","Payload: `{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"eth_blockNumber\",\"params\":[]}`. Plain HTTP POST, identical for every endpoint, no API key in any request.","Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms → 10 s), so percentiles are computed via Prometheus `quantile_over_time` over the last 24 hours.","Call-result classification: `ok` (HTTP 200 + non-empty result), `http_err`, `jsonrpc_err` (HTTP 200 carrying an error body), `stale` (more than 20 blocks behind the cross-provider tip), `timeout`. Latency without reliability is a misleading ranking signal.","Archive depth: every 5 minutes we issue `eth_getBalance` at (head − depth) for depths from Geth's default pruned cap up to 5M blocks, exposing which free endpoints actually serve historical state.","This page is part of the per-chain RPC cluster derived from the cross-chain [rpc-capabilities](https://openchainbench.com/benchmarks/rpc-capabilities) benchmark; the identical harness, methodology and exclusion rules apply on every chain.","Chain scope: every query on this page is pinned to chain=\"cronos\". Provider coverage: 4 no-key endpoints (PublicNode, dRPC, 1RPC, Cronos). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}