{"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":126.704,"leader":{"name":"Cyber Network","slug":"cyber-official","value":126.704},"rankings":[{"name":"Cyber Network","slug":"cyber-official","ms":{"p50":126.704,"p90":133.296,"p99":143.049,"mean":129.1},"successRate":100,"sampleSize":4321.77},{"name":"AltLayer","slug":"altlayer","ms":{"p50":140.128,"p90":148.721,"p99":186.16,"mean":143.287},"successRate":100,"sampleSize":4321.77}],"sparkline":[126.295,126.232,126.234,126.131,125.767,125.524,125.698,126.266,126.638,126.418,126.302,126.144,126.211,126.203,126.43,126.365,126.225,125.974,126.026,126.326,126.839,127.423,127.875,128.017,128.134,127.99,128.008,127.808,127.628,127.541,127.696,127.667,127.125,126.468,125.888,125.859,126.118,126.228,125.969,125.7,125.844,126.029,126.375,126.788,137.025,136.658,136.259,126.195,126.352,126.281,126.285,130.693,135.339,137.914,135.686,133.315,132.671,132.516,132.532,133.915,133.623,133.584,132.151,132.216,132.604,132.695,132.801,132.789,133.079,133.161,132.459,131.967,131.81],"sampleSize":12957.310000000001,"asOf":"2026-09-18T01:11:18.044Z","headline":"Cyber Network posts the lowest rpc latency at 127 ms (p50, 24h) on Fastest free Cyber RPC, live no-key EVM endpoint latency.","quote":"Cyber Network posts the lowest rpc latency at 127 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 2026-09-18. 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 2026-09-18}\n}","apa":"OpenChainBench. (2026). Fastest free Cyber RPC, live no-key EVM endpoint latency. Retrieved September 18, 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  - 2026-09-18\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"}