{"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":169.197,"leader":{"name":"dRPC","slug":"drpc","value":169.197},"rankings":[{"name":"dRPC","slug":"drpc","ms":{"p50":169.197,"p90":199.855,"p99":479.366,"mean":184.683},"successRate":90.8712,"sampleSize":4316.84},{"name":"zkSync","slug":"zksync-official","ms":{"p50":218.882,"p90":230.045,"p99":859.073,"mean":242.51},"successRate":99.8377,"sampleSize":4313.84},{"name":"Tenderly","slug":"tenderly","ms":{"p50":331.903,"p90":348.069,"p99":384.854,"mean":334.584},"successRate":100,"sampleSize":4322.84}],"sparkline":[167.551,167.491,167.724,169.374,169.927,170.101,169.558,169.286,168.682,168.084,168.482,169.083,171.747,172.086,174.608,173.399,174.896,173.595,171.906,170.457,169.754,170.476,170.952,170.518,170.273,169.584,169.392,169.447,170.519,171.478,172.172,172.751,173.409,179.809,180.866,182.054,176.96,177,176.814,234.372,264.035,311.234,286.188,255.027,207.812,173.251,172.076,172.143,172.309,197.38,219.842,243.62,224.264,216.605,200.564,199.409,185.464,179.676,176.472,177.904,174.718,173.078,171.825,171.804,173.72,173.206,173.196,174.157,175.263,176.155,174.884,174.073,175.561],"sampleSize":12953.52,"asOf":"2026-08-22T03:14:18.307Z","headline":"dRPC posts the lowest rpc latency at 169 ms (p50, 24h) on Fastest free zkSync Era RPC, live no-key endpoint latency.","quote":"dRPC posts the lowest rpc latency at 169 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 2026-08-22. 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 2026-08-22}\n}","apa":"OpenChainBench. (2026). Fastest free zkSync Era RPC, live no-key endpoint latency. Retrieved August 22, 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  - 2026-08-22\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"}