{"slug":"arbitrum-rpc","title":"Fastest free Arbitrum RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Arbitrum RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":90.2925,"leader":{"name":"PublicNode","slug":"publicnode","value":90.2925},"rankings":[{"name":"PublicNode","slug":"publicnode","ms":{"p50":90.2925,"p90":258.741,"p99":1154.21,"mean":156.144},"successRate":100,"sampleSize":4295.74},{"name":"Nodies","slug":"nodies","ms":{"p50":181.841,"p90":204.095,"p99":351.18,"mean":190.108},"successRate":100,"sampleSize":4323.75},{"name":"Lava","slug":"lava","ms":{"p50":221.906,"p90":470.403,"p99":1547.56,"mean":285.258},"successRate":96.8882,"sampleSize":4274.74},{"name":"Tenderly","slug":"tenderly","ms":{"p50":235.559,"p90":244.954,"p99":283.999,"mean":238.144},"successRate":100,"sampleSize":4314.75},{"name":"Arbitrum","slug":"arbitrum-official","ms":{"p50":250.101,"p90":342.16,"p99":875.571,"mean":291.01},"successRate":99.9537,"sampleSize":4325.75},{"name":"MeowRPC","slug":"meowrpc","ms":{"p50":272.705,"p90":346.636,"p99":469.029,"mean":268.205},"successRate":94.9314,"sampleSize":4301.75},{"name":"dRPC","slug":"drpc","ms":{"p50":350.475,"p90":498.58,"p99":1250.23,"mean":402.866},"successRate":86.8113,"sampleSize":4284.74}],"sparkline":[312.363,153.117,152.888,162.749,201.79,221.456,181.248,165.817,141.271,143.085,127.925,131.172,122.581,116.092,111.937,112.367,117.962,117.298,115.933,109.03,105.987,105.926,107.479,108.198,108.662,109.828,109.636,113.968,112.873,115.536,109.222,104.44,105.813,109.054,116.675,119.169,126.975,126.713,132.326,128.047,133.464,142.573,144.356,139.212,125.9,125.888,125.599,122.742,116.873,113.875,114.751,122.774,131.03,130.469,145.15,161.189,193.115,191.739,225.935,199.201,203.974,164.251,189.847,213.087,244.98,277.31,328.142,351.987,316.496,294.14,278.98,284.638,226.967],"sampleSize":30121.22,"asOf":"2026-08-14T15:37:41.649Z","headline":"PublicNode leads rpc latency at 90 ms (p50, 24h) on Fastest free Arbitrum RPC, live no-key endpoint latency.","quote":"PublicNode leads rpc latency at 90 ms (p50, 24h) on Fastest free Arbitrum RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/arbitrum-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Arbitrum RPC, live no-key endpoint latency\". Retrieved 2026-08-14. https://openchainbench.com/benchmarks/arbitrum-rpc","bibtex":"@misc{ocb_arbitrum_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Arbitrum RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/arbitrum-rpc},\n  note   = {Retrieved 2026-08-14}\n}","apa":"OpenChainBench. (2026). Fastest free Arbitrum RPC, live no-key endpoint latency. Retrieved August 14, 2026, from https://openchainbench.com/benchmarks/arbitrum-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Arbitrum RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/arbitrum-rpc\r\nY2  - 2026-08-14\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/arbitrum-rpc","ogImage":"https://openchainbench.com/api/og/arbitrum-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=\"arbitrum\". Provider coverage: 7 no-key endpoints (PublicNode, dRPC, Tenderly, Nodies, Lava, MeowRPC, Arbitrum). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}