{"slug":"cronos-rpc","title":"Fastest free Cronos RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Cronos RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":32.0001,"leader":{"name":"Cronos","slug":"cronos-official","value":32.0001},"rankings":[{"name":"Cronos","slug":"cronos-official","ms":{"p50":32.0001,"p90":446.917,"p99":2416.96,"mean":186.763},"successRate":98.0479,"sampleSize":4304.85},{"name":"PublicNode","slug":"publicnode","ms":{"p50":179.895,"p90":449.948,"p99":1562,"mean":268.67},"successRate":99.58160000000001,"sampleSize":4310.87},{"name":"dRPC","slug":"drpc","ms":{"p50":255.005,"p90":276.891,"p99":453.452,"mean":266.037},"successRate":91.04820000000001,"sampleSize":4312.84}],"sparkline":[27.7115,51.3004,51.0599,52.0003,31.351,50.4678,50.3562,49.8708,31.6779,31.7609,30.8141,32.2546,32.7919,37.5845,38.2795,39.822,34.3961,32.5409,35.4681,36.7153,36.5726,36.3588,42.0072,45.3323,42.68,36.1846,33.1566,62.2732,123.433,160.076,179.944,157.458,152.986,146.978,109.738,81.1985,37.0667,36.3358,33.9395,55.0157,52.6834,60.0328,63.7359,101.09,153.496,179.103,179.474,134.935,112.598,111.27,239.29,338.815,442.589,443.772,413.68,341.101,477.895,523.367,726.926,562.032,626.713,592.558,597.9,480.875,508.619,454.454,530.508,426.81,470.451,323.204,218.089,151.988,178.675],"sampleSize":12928.56,"asOf":"2026-08-22T03:12:48.372Z","headline":"Cronos posts the lowest rpc latency at 32 ms (p50, 24h) on Fastest free Cronos RPC, live no-key endpoint latency.","quote":"Cronos posts the lowest rpc latency at 32 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 2026-08-22. 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 2026-08-22}\n}","apa":"OpenChainBench. (2026). Fastest free Cronos RPC, live no-key endpoint latency. Retrieved August 22, 2026, from https://openchainbench.com/benchmarks/cronos-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Cronos RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/cronos-rpc\r\nY2  - 2026-08-22\r\nER  - \r\n"},"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 60 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\":<rotating>,\"method\":\"eth_getBlockByNumber\",\"params\":[\"latest\",false]}`. Plain HTTP POST, identical for every endpoint, no API key in any request. Non-cacheable by design: the latest-header fetch with a rotating id defeats edge caches that answer eth_blockNumber without touching a node.","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."],"license":"CC-BY-4.0"}