{"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":25.2882,"leader":{"name":"Cronos","slug":"cronos-official","value":25.2882},"rankings":[{"name":"Cronos","slug":"cronos-official","ms":{"p50":25.2882,"p90":35.3094,"p99":409.786,"mean":37.0927},"successRate":100,"sampleSize":4318.75},{"name":"PublicNode","slug":"publicnode","ms":{"p50":106.747,"p90":269.109,"p99":454.312,"mean":163.204},"successRate":100,"sampleSize":4320.75},{"name":"dRPC","slug":"drpc","ms":{"p50":258.727,"p90":324.707,"p99":599.776,"mean":280.725},"successRate":90.3218,"sampleSize":4319.75}],"sparkline":[29.6214,29.2204,28.5727,28.3099,28.0373,27.8297,27.8583,28.2121,29.5063,30.2574,31.0374,60.7728,76.965,78.5127,49.5507,36.5451,36.4647,36.9042,37.2271,49.5117,47.7137,43.6929,29.0023,28.2574,27.2121,26.3819,25.3158,24.5648,23.4676,22.4571,21.9106,21.6535,21.4505,21.0198,26.6918,26.7298,26.8898,20.8788,20.9742,20.8911,21.0215,20.8361,21.0117,21.0142,21.4204,23.5439,23.7779,23.8946,22.0823,22.3243,22.5351,28.8456,29.3668,42.9793,52.3044,67.7718,69.8473,72.7873,93.3713,107.477,112.263,77.7626,53.4111,31.6561,31.5828,28.0998,28.0051,28.1685,28.7123,47.5103,47.1238,46.0643,26.9701],"sampleSize":12959.25,"asOf":"2026-08-15T09:40:11.740Z","headline":"Cronos leads rpc latency at 25 ms (p50, 24h) on Fastest free Cronos RPC, live no-key endpoint latency.","quote":"Cronos leads rpc latency at 25 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 2026-08-15. 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 2026-08-15}\n}","apa":"OpenChainBench. (2026). Fastest free Cronos RPC, live no-key endpoint latency. Retrieved August 15, 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  - 2026-08-15\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"}