{"slug":"unichain-rpc","title":"Fastest free Unichain RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Unichain RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":82.2236,"leader":{"name":"PublicNode","slug":"publicnode","value":82.2236},"rankings":[{"name":"PublicNode","slug":"publicnode","ms":{"p50":82.2236,"p90":249.848,"p99":360.083,"mean":124.017},"successRate":100,"sampleSize":4320.58},{"name":"dRPC","slug":"drpc","ms":{"p50":163.28,"p90":305.888,"p99":591.987,"mean":198.174},"successRate":90.83099999999999,"sampleSize":4319.59},{"name":"Unichain","slug":"unichain-official","ms":{"p50":246.47,"p90":261.1,"p99":278.857,"mean":247.836},"successRate":100,"sampleSize":4318.58},{"name":"Tenderly","slug":"tenderly","ms":{"p50":334.509,"p90":346.122,"p99":370.126,"mean":334.623},"successRate":100,"sampleSize":4317.58}],"sparkline":[132.614,134.772,132.552,130.654,130.283,131.965,131.993,130.696,137.29,146.024,151.627,152.159,145.809,143.186,139.154,141.442,132.839,126.652,117.287,115.029,115.745,119.814,120.837,125.31,119.859,121.371,114.397,113.479,111.245,108.721,102.115,98.2419,100.514,105.286,111.853,108.172,113.337,118.857,122.922,113.372,103.347,100.806,103.845,103.768,108.325,113.976,118.269,114.952,112.472,110.2,123.91,157.115,167.116,161.01,139.696,132.481,124.452,117.533,112.835,122.003,117.106,119.943,117.368,126.867,133.962,140.411,134.242,129.763,122.106,124.356,125.748,125.857,129.31],"sampleSize":17276.33,"asOf":"2026-08-15T10:28:33.446Z","headline":"PublicNode leads rpc latency at 82 ms (p50, 24h) on Fastest free Unichain RPC, live no-key endpoint latency.","quote":"PublicNode leads rpc latency at 82 ms (p50, 24h) on Fastest free Unichain RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/unichain-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Unichain RPC, live no-key endpoint latency\". Retrieved 2026-08-15. https://openchainbench.com/benchmarks/unichain-rpc","bibtex":"@misc{ocb_unichain_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Unichain RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/unichain-rpc},\n  note   = {Retrieved 2026-08-15}\n}","apa":"OpenChainBench. (2026). Fastest free Unichain RPC, live no-key endpoint latency. Retrieved August 15, 2026, from https://openchainbench.com/benchmarks/unichain-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Unichain RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/unichain-rpc\r\nY2  - 2026-08-15\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/unichain-rpc","ogImage":"https://openchainbench.com/api/og/unichain-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=\"unichain\". Provider coverage: 4 no-key endpoints (PublicNode, dRPC, Tenderly, Unichain). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}