{"slug":"zksync-rpc","title":"Fastest free zkSync Era RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_blockNumber against every free, no-key public zkSync Era RPC endpoint, audited every 15 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"value":17,"leader":{"name":"dRPC","slug":"drpc","value":17},"rankings":[{"name":"dRPC","slug":"drpc","ms":{"p50":17,"p90":29.6667,"p99":77.4433,"mean":20.949},"successRate":94.8869,"sampleSize":8626.61},{"name":"zkSync","slug":"zksync-official","ms":{"p50":220.333,"p90":226.667,"p99":853.667,"mean":233.615},"successRate":99.6637,"sampleSize":8624.61},{"name":"Tenderly","slug":"tenderly","ms":{"p50":329.333,"p90":340.667,"p99":413.667,"mean":332.188},"successRate":99.9884,"sampleSize":8634.61},{"name":"1RPC","slug":"1rpc","ms":{"p50":412.167,"p90":4119,"p99":6605.39,"mean":1199.39},"successRate":1.83148,"sampleSize":8628.61}],"sparkline":[21.6795,18.1476,16.7793,17.0983,16.7352,15.7919,14.5546,13.4921,13.2926,12.5142,12.7775,13.7994,13.7559,13.2436,12.7028,13.0894,13.7628,14.5626,14.7011,14.9569,15.3044,15.7219,15.9337,15.3798,15.4221,15.942,16.5952,17.2472,17.5722,17.3353,17.4369,17.5633,18.3305,18.5334,20.8216,22.2323,23.2792,22.0105,21.7886,20.9959,21.0237,20.293,20.2204,19.7733,19.843,20.7792,21.5296,21.8189,21.3618,20.6408,20.8736,21.8757,22.8548,22.9005,21.9578,23.0123,23.6101,24.772,25.3405,27.3259,30.4308,31.3939,30.6722,30.142,29.5751,29.3863,28.6831,27.6458,27.5701,46.0214,47.2193,47.4492,28.8507],"sampleSize":34514.44,"asOf":"2026-07-04T17:54:19.905Z","headline":"dRPC leads rpc latency at 17 ms (p50, 24h) on Fastest free zkSync Era RPC, live no-key endpoint latency.","quote":"dRPC leads rpc latency at 17 ms (p50, 24h) on Fastest free zkSync Era RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/zksync-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free zkSync Era RPC, live no-key endpoint latency\". Retrieved 2026-07-04. https://openchainbench.com/benchmarks/zksync-rpc","bibtex":"@misc{ocb_zksync_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free zkSync Era RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/zksync-rpc},\n  note   = {Retrieved 2026-07-04}\n}","apa":"OpenChainBench. (2026). Fastest free zkSync Era RPC, live no-key endpoint latency. Retrieved July 4, 2026, from https://openchainbench.com/benchmarks/zksync-rpc"},"pageUrl":"https://openchainbench.com/benchmarks/zksync-rpc","ogImage":"https://openchainbench.com/api/og/zksync-rpc","source":"https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities","methodology":["Cadence: every 15 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\":1,\"method\":\"eth_blockNumber\",\"params\":[]}`. Plain HTTP POST, identical for every endpoint, no API key in any request.","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=\"zksync\". Provider coverage: 4 no-key endpoints (dRPC, 1RPC, Tenderly, zkSync). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}