{"slug":"zksync-rpc","title":"Fastest free zkSync Era RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public zkSync Era RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":167,"leader":{"name":"dRPC","slug":"drpc","value":167},"rankings":[{"name":"dRPC","slug":"drpc","ms":{"p50":167,"p90":181.667,"p99":248.507,"mean":172.096},"successRate":90.345,"sampleSize":4319.6},{"name":"zkSync","slug":"zksync-official","ms":{"p50":210.667,"p90":227.667,"p99":850,"mean":234.869},"successRate":99.8609,"sampleSize":4314.6},{"name":"Tenderly","slug":"tenderly","ms":{"p50":331.333,"p90":343.667,"p99":362.667,"mean":332.651},"successRate":100,"sampleSize":4321.6}],"sparkline":[175.631,179.897,181.458,180.318,179.204,179.864,181.531,178.939,176.473,175.758,177.722,177.056,196.681,195.338,194.406,172.124,170.113,169.019,168.858,167.822,167.802,166.564,166.37,166.917,167.561,167.367,165.826,166.083,170.508,170.758,170.299,166.799,165.972,165.61,165.107,167.461,169.067,170.576,170.246,171.544,172.179,172.841,172.932,173.187,173.09,171.942,172.107,172.321,173.803,174.097,175.472,173.261,172.235,170.367,170.889,169.019,168.771,168.372,169.217,169.614,170.084,171.069,170.885,169.986,168.872,170.379,169.856,169.426,169.243,170.662,173.836,174.014,173.288],"sampleSize":12955.800000000001,"asOf":"2026-08-08T13:10:47.567Z","headline":"dRPC leads rpc latency at 167 ms (p50, 24h) on Fastest free zkSync Era RPC, live no-key endpoint latency.","quote":"dRPC leads rpc latency at 167 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 2026-08-08. 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 2026-08-08}\n}","apa":"OpenChainBench. (2026). Fastest free zkSync Era RPC, live no-key endpoint latency. Retrieved August 8, 2026, from https://openchainbench.com/benchmarks/zksync-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free zkSync Era RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/zksync-rpc\r\nY2  - 2026-08-08\r\nER  - \r\n"},"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 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=\"zksync\". Provider coverage: 3 no-key endpoints (dRPC, Tenderly, zkSync). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}