{"slug":"metis-rpc","title":"Fastest free Metis 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 Metis EVM endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":43.556,"leader":{"name":"PublicNode","slug":"publicnode","value":43.556},"rankings":[{"name":"PublicNode","slug":"publicnode","ms":{"p50":43.556,"p90":55.9602,"p99":127.159,"mean":48.8037},"successRate":100,"sampleSize":4321.77},{"name":"Metis","slug":"metis-official","ms":{"p50":128.964,"p90":207.926,"p99":738.393,"mean":163.191},"successRate":100,"sampleSize":4314.77},{"name":"dRPC","slug":"drpc","ms":{"p50":145.24,"p90":202.767,"p99":294.583,"mean":159.274},"successRate":98.7255,"sampleSize":4315.77}],"sparkline":[43.0941,41.9942,42.1547,41.966,42.139,43.0301,43.1245,43.4626,42.8277,42.8914,43.4519,44.2832,45.7876,45.5178,45.9651,46.075,48.3529,48.7053,48.5635,47.6218,48.4883,48.0675,47.0591,45.6235,48.9942,51.0266,52.8878,50.138,51.5678,51.8565,53.3772,54.6181,58.6237,60.4146,58.3066,56.8144,55.0669,54.7221,53.6309,53.4016,53.3173,53.241,54.4079,55.2234,55.8496,57.6509,54.345,61.3284,82.5682,81.6232,74.2047,53.6309,55.2613,49.7307,43.2147,40.9524,39.9287,38.2913,38.9006,39.2398,39.1029,38.8006,38.9748,40.3729,40.0503,40.2371,41.1237,41.1807,41.4375,41.3586,41.5771,41.9796,42.2037],"sampleSize":17269.08,"asOf":"2026-09-18T03:40:18.031Z","headline":"PublicNode posts the lowest rpc latency at 44 ms (p50, 24h) on Fastest free Metis RPC, live no-key EVM endpoint latency.","quote":"PublicNode posts the lowest rpc latency at 44 ms (p50, 24h) on Fastest free Metis RPC, live no-key EVM endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/metis-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Metis RPC, live no-key EVM endpoint latency\". Retrieved 2026-09-18. https://openchainbench.com/benchmarks/metis-rpc","bibtex":"@misc{ocb_metis_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Metis RPC, live no-key EVM endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/metis-rpc},\n  note   = {Retrieved 2026-09-18}\n}","apa":"OpenChainBench. (2026). Fastest free Metis RPC, live no-key EVM endpoint latency. Retrieved September 18, 2026, from https://openchainbench.com/benchmarks/metis-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Metis RPC, live no-key EVM endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/metis-rpc\r\nY2  - 2026-09-18\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/metis-rpc","ogImage":"https://openchainbench.com/api/og/metis-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=\"metis\"`. Provider coverage: 4 no-key endpoints."],"license":"CC-BY-4.0"}