{"slug":"optimism-rpc","title":"Fastest free Optimism RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Optimism RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":99.9568,"leader":{"name":"PublicNode","slug":"publicnode","value":99.9568},"rankings":[{"name":"PublicNode","slug":"publicnode","ms":{"p50":99.9568,"p90":123.001,"p99":205.384,"mean":107.342},"successRate":100,"sampleSize":4315.22},{"name":"dRPC","slug":"drpc","ms":{"p50":168.479,"p90":192.271,"p99":237.267,"mean":158.71},"successRate":75.9491,"sampleSize":4321.22},{"name":"Tenderly","slug":"tenderly","ms":{"p50":239.556,"p90":250.833,"p99":259.408,"mean":239.844},"successRate":100,"sampleSize":4321.22},{"name":"Optimism","slug":"optimism-official","ms":{"p50":331.371,"p90":340.093,"p99":392.585,"mean":332.813},"successRate":99.9537,"sampleSize":4318.22},{"name":"Nodies","slug":"nodies","ms":{"p50":353.455,"p90":369.81,"p99":487.939,"mean":355.569},"successRate":100,"sampleSize":4320.22}],"sparkline":[98.7306,101.787,104.387,103.366,98.9441,96.4584,97.6084,97.8401,97.9589,98.9196,100.404,101.762,101.388,101.873,102.527,103.516,103.26,102.402,104.22,104.888,106.579,104.584,105.341,104.484,105.342,103.899,103.608,103.335,105.192,104.426,103.475,101.196,101.088,101.466,103.17,103.884,103.582,102.248,102.536,106.585,108.05,108.036,104.829,105.375,105.743,105.186,104.729,104.232,104.144,103.07,102.49,103.08,106.659,105.8,104.542,109.239,119.487,128.233,126.038,126.285,126.626,127.271,122.219,118.229,115.145,114.497,114.763,114.247,115.221,114.793,115.813,115.418,114.791],"sampleSize":21596.100000000002,"asOf":"2026-08-24T00:30:16.685Z","headline":"PublicNode posts the lowest rpc latency at 100 ms (p50, 24h) on Fastest free Optimism RPC, live no-key endpoint latency.","quote":"PublicNode posts the lowest rpc latency at 100 ms (p50, 24h) on Fastest free Optimism RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/optimism-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Optimism RPC, live no-key endpoint latency\". Retrieved 2026-08-24. https://openchainbench.com/benchmarks/optimism-rpc","bibtex":"@misc{ocb_optimism_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Optimism RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/optimism-rpc},\n  note   = {Retrieved 2026-08-24}\n}","apa":"OpenChainBench. (2026). Fastest free Optimism RPC, live no-key endpoint latency. Retrieved August 24, 2026, from https://openchainbench.com/benchmarks/optimism-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Optimism RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/optimism-rpc\r\nY2  - 2026-08-24\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/optimism-rpc","ogImage":"https://openchainbench.com/api/og/optimism-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.","Chain scope: every query on this page is pinned to chain=\"optimism\". Provider coverage: 5 no-key endpoints (PublicNode, dRPC, Tenderly, Nodies, Optimism). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}