{"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":93.9647,"leader":{"name":"PublicNode","slug":"publicnode","value":93.9647},"rankings":[{"name":"PublicNode","slug":"publicnode","ms":{"p50":93.9647,"p90":564.253,"p99":623.9,"mean":188.985},"successRate":100,"sampleSize":4326.81},{"name":"dRPC","slug":"drpc","ms":{"p50":239.227,"p90":327.025,"p99":962.421,"mean":276.692},"successRate":88.8914,"sampleSize":4276.81},{"name":"Metis","slug":"metis-official","ms":{"p50":245.038,"p90":314.866,"p99":2052.18,"mean":338.346},"successRate":99.3464,"sampleSize":4285.81}],"sparkline":[205.537,191.911,210.783,219.646,253.174,265.078,258.685,234.48,208.06,208.298,199.933,209.884,182.323,170.765,155.976,173.277,200.906,229.462,221.756,237.5,249.632,281.902,254.446,219.553,202.374,198.886,221.259,216.565,218.454,180.912,180.746,172.313,198.401,200.871,188.558,164.933,142.309,150,149.78,148.092,146.246,149.191,161.435,175.893,173.313,163.195,164.353,171.972,172.041,157.087,154.273,153.069,150.061,143.746,145.199,153.499,148.808,153.935,150.624,161.325,156.417,156.616,157.046,184.894,193.05,214.7,198.207,210.644,196.451,198.945,192.832,218.111,215.694],"sampleSize":17181.24,"asOf":"2026-08-14T16:13:43.464Z","headline":"PublicNode leads rpc latency at 94 ms (p50, 24h) on Fastest free Metis RPC, live no-key EVM endpoint latency.","quote":"PublicNode leads rpc latency at 94 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 2026-08-14. 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 2026-08-14}\n}","apa":"OpenChainBench. (2026). Fastest free Metis RPC, live no-key EVM endpoint latency. Retrieved August 14, 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  - 2026-08-14\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"}