{"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":90.2229,"leader":{"name":"PublicNode","slug":"publicnode","value":90.2229},"rankings":[{"name":"PublicNode","slug":"publicnode","ms":{"p50":90.2229,"p90":253.599,"p99":494.909,"mean":129.774},"successRate":100,"sampleSize":4315.44},{"name":"Nodies","slug":"nodies","ms":{"p50":178.528,"p90":192.16,"p99":336.91,"mean":184.167},"successRate":100,"sampleSize":4317.44},{"name":"Tenderly","slug":"tenderly","ms":{"p50":240.167,"p90":253.001,"p99":320.268,"mean":243.226},"successRate":100,"sampleSize":4318.44},{"name":"Arbitrum","slug":"arbitrum-official","ms":{"p50":252.899,"p90":263.473,"p99":328.533,"mean":255.214},"successRate":100,"sampleSize":4319.44},{"name":"Lava","slug":"lava","ms":{"p50":266.324,"p90":638.604,"p99":2106.8,"mean":359.652},"successRate":97.0288,"sampleSize":4308.44},{"name":"MeowRPC","slug":"meowrpc","ms":{"p50":276.956,"p90":350.641,"p99":925.898,"mean":292.991},"successRate":97.2885,"sampleSize":4315.44},{"name":"dRPC","slug":"drpc","ms":{"p50":356.1,"p90":767.948,"p99":1619.63,"mean":450.125},"successRate":68.3979,"sampleSize":4313.44}],"sparkline":[119.776,118.756,122.868,115.45,114.313,109.307,106.26,110.62,118.701,118.938,118.231,113.95,114.082,107.614,106.822,116.64,126.015,123.528,130.399,127.563,139.629,139.93,143.561,143.562,144.478,139.529,132.633,121.228,135.261,134.838,133.703,126.846,131.482,144.994,168.209,165.615,156.902,127.247,129.737,128.955,194.635,212.348,235.01,180.574,158.844,139.489,137.582,137.903,134.652,127.857,123.095,114.354,112.575,115.519,119.75,122.933,120.343,120.85,114.288,110.704,105.256,104.009,106.122,105.886,110.33,113.943,117.639,115.85,118.119,125.918,125.212,122.267,123.626],"sampleSize":30208.079999999994,"asOf":"2026-08-18T00:21:44.123Z","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 2026-08-18. 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 2026-08-18}\n}","apa":"OpenChainBench. (2026). Fastest free Arbitrum RPC, live no-key endpoint latency. Retrieved August 18, 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  - 2026-08-18\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"}