{"slug":"cyber-rpc","title":"Fastest free Cyber RPC, live no-key EVM endpoint latency","subtitle":"HTTP round-trip latency for the `eth_getBlockByNumber(\\\"latest\\\", false)` method against every free, no-key public Cyber Network EVM endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":164,"leader":{"name":"Cyber Network","slug":"cyber-official","value":164},"rankings":[{"name":"Cyber Network","slug":"cyber-official","ms":{"p50":164,"p90":172.667,"p99":176,"mean":166.684},"successRate":100,"sampleSize":4321.6},{"name":"AltLayer","slug":"altlayer","ms":{"p50":173.667,"p90":180.667,"p99":228.86,"mean":180.511},"successRate":100,"sampleSize":4321.6}],"sparkline":[173.314,171.454,164.1,163.844,163.583,163.483,163.433,163.961,164.267,164.444,164.056,163.883,163.939,163.45,163.083,162.572,175.039,174.939,174.711,166.206,166.189,166.128,162.289,163.006,163.372,163.589,163.412,163.383,163.393,163.311,163.528,163.444,163.211,163.289,163.217,163.528,163.3,163.05,162.467,162,162.061,162.267,162.65,162.817,163.461,163.917,164.289,164.439,164.528,164.6,164.233,164.161,164.328,168.73,174.181,176.808,175.352,172.732,172.621,172.349,172.128,172.018,171.957,171.968,172.081,172.11,172.031,171.983,172.022,171.978,171.975,171.908,172.484],"sampleSize":12956.800000000001,"asOf":"2026-08-08T13:06:47.549Z","headline":"Cyber Network leads rpc latency at 164 ms (p50, 24h) on Fastest free Cyber RPC, live no-key EVM endpoint latency.","quote":"Cyber Network leads rpc latency at 164 ms (p50, 24h) on Fastest free Cyber RPC, live no-key EVM endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/cyber-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Cyber RPC, live no-key EVM endpoint latency\". Retrieved 2026-08-08. https://openchainbench.com/benchmarks/cyber-rpc","bibtex":"@misc{ocb_cyber_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Cyber RPC, live no-key EVM endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/cyber-rpc},\n  note   = {Retrieved 2026-08-08}\n}","apa":"OpenChainBench. (2026). Fastest free Cyber RPC, live no-key EVM endpoint latency. Retrieved August 8, 2026, from https://openchainbench.com/benchmarks/cyber-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Cyber RPC, live no-key EVM endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/cyber-rpc\r\nY2  - 2026-08-08\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/cyber-rpc","ogImage":"https://openchainbench.com/api/og/cyber-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 rotating id defeats edge caches that would answer a bare head query 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 with a parsable hex block number), `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.","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, cadence and exclusion rules apply on every chain.","Chain scope: every query on this page is pinned to `chain=\"cyber\"`. Provider coverage at launch: 3 no-key endpoints."],"license":"CC-BY-4.0"}